Chereads / Taboo Incest sex stories / Chapter 1585 - ME, SIS AND THE HOT-TUB

Chapter 1585 - ME, SIS AND THE HOT-TUB

"Hi sis, what can I do for you?"

"John, I'm in a bit of a pickle."

"Oh! Are you ok?"

"Yes, I'm fine but my flat isn't."

"What's happened?"

"Burst pipes and I need to move out while the repairs are going on. Can I move in with you for a bit?"

"Of course you can. When were you planning on moving in?"

"What about tomorrow after work?"

"It's not too late now if you want. Get some clothes together and I'll go collect you."

"Would you mind?"

"Of course not. I'll get my spare room sorted and go straight over. Will an hour be enough?"

"You're a sweetheart big brother. An hour will be fine. See you then."

And that is how this story started. My sister, younger by two years, moved in while her flat was being repaired and re-decorated. The heavy winter frosts must have weakened a few pipes and they eventually burst. The mess they caused would keep her away for at least eight weeks according to the builders. Fixing the burst pipes was the easy part. Getting the flat dry and replacing floors and ceilings was the tricky part. The builders were busy at other jobs and as she had somewhere to move into, they didn't see her as a priority over those that couldn't move out during renovations. Thankfully she was well-insured and was only going to be out a few hundred pounds for the access payments.

The first week was uneventful. Gwen and I went to work during the day and dined together in the evenings. She worked as a dental nurse in a town centre practice; I worked in the local library. We carried on with our own social lives and fortunately neither of us was involved with anyone special, so the potential embarrassment of bringing someone back for a bit of fun never materialised. However, we did get used to having each other around and things started to relax a bit. For example, we were no longer bothered being seen in our underwear. Our first encounter was when she emerged from her bedroom, early in the second week, looking for her uniform. She was dressed in just her underwear, a white cotton bra with matching full briefs. Very comfortable looking but certainly not arousing in any sense.

"You ok sis?" I asked.

"Sorry John, I left my uniform on the ironing board."

She went into the utility room and then back into her room carrying her uniform.

"I'm away sis," I shouted to her. "Catch you later."

"Ok John. See you at dinner."

My day went quietly, no library pun intended, and over dinner later that evening I sensed that something was wrong with Gwen and it was while we were doing the dishes that I asked her if everything was ok.

"I'm sorry about this morning John," she said.

"Sorry about what?" I replied puzzled.

"Walking around in my undies," she frowned. "I just didn't think."

I laughed.

"You've nothing to apologise for sis. I didn't mind at all. In fact, it's nice to see that you're relaxed enough to do it."

"You sure you didn't mind?"

"I definitely didn't mind. Anyway, what normal guy is going to complain about a woman walking around in her undies?"

Laughing she swatted me with the drying cloth and called me a perv. Getting that off her chest made the atmosphere more relaxed and the rest of the evening was spent watching TV.

The next morning she came out of her room fully dressed.

"What, no lingerie parade this morning?" I said sarcastically.

"It's your turn," she said with a smile.

"Be careful what you wish for sis," I replied.

"All talk big bro," she retorted.

We left together laughing.

The rest of the week went quietly with neither of us displaying our undies. On Saturday morning I went into the utility room to look for cleanser for my hot-tub. I'd planned on giving it a good clean and getting it ready for use now that Spring had arrived. I thought Gwen was still asleep so I just went in my boxers. As I came back into the living room I heard Gwen coming in the front door. She'd been to the shops and was not still in bed as I thought. We both froze for a moment.

"Oh," she said surprised. "You paying me back for earlier in the week?" she asked with a smile."

"And what if I am?"

"Well thank you bro," she laughed. "What you up to?" she asked looking at what I was holding.

"I thought I'd give the hot-tub a good clean after the winter now that the warmer weather is starting."

"You've a hot-tub?" she said surprised.

"Yes, didn't you know?"

"No I didn't. When and where?"

"About this time last year and it's at the side of the house."

"Show me."

"Can I get dressed first?" I said mockingly.

"If you must," she said in mock disappointment.

I went into my room and pulled on some old clothes that would do for cleaning. She put the shopping away and was waiting at the back door for me. Unlocking the door, I went into the garden and round to the right. Gwen followed closely.

"Wow," she said. "It looks good. How often do you use it?"

"In the beginning, every weekend, but as the novelty wore off, it ended up maybe once a month."

"Held any wild parties in it?" she said with a wink.

"No, not yet," I said.

"Sounds promising bro," she laughed.

"You never know," I said winking back.

"Would you like me to help?"

"I never turn down the offer of help with a dirty job."

"I'll go get changed and you can tell me what to do."

She came back a few minutes later in an old sweat suit. I gave her a few rags and showed her what to do. Thankfully the tub wasn't too dirty and there was no mould growing in it.

The work wasn't hard but it raised a sweat and before long Gwen took her sweat top off revealing a white vest top. From the jiggle of her boobs as she washed and scrubbed it was clear that she was bra-less and on one occasion as she leaned forward the vest billowed showing off some lovely cleavage. Stiff nipples also betrayed her bra-less state, not that I was complaining. But those thoughts were quickly followed by the guilt of ogling my sister.

Between us it took just under an hour to have the surfaces clean and the chrome fittings gleaming again. Once it was ready I turned the taps on to fill it.

"Are we going to use it now?" Gwen asked with some surprise.

"We can if you want," I replied. "But it will take a while to fill and get up to temperature."

"How does it work?"

"Well the heaters in the tub heat the water..."

"I know that dummy," she said with a laugh. "I meant how is it used?"

"You just sit in it. The hot water relaxes you and you can turn on the water jets to sort of make it like a Jacuzzi."

"Do you not get cold?"

"No. In fact you could get into it with snow on the ground and not feel cold. Getting back out would be cold though."

"So you could start using it right away?"

"Yes, why you interested?"

"I've never been in one, so, yes I am."

"We could try it later if you want. It'll take about 4 hours to fill and warm. So, would you like to try before dinner or well after so we don't get cramps?"

"Can we try it before? I don't think I could wait that long," she laughed.

"No problem. It should be ready about 4 o'clock.

We both showered after our sweaty work and had a light snack while we waited for the tub to be ready. It was clear that Gwen was getting giddy at the prospect of using the tub. She found it difficult to settle herself.

I went to my room and changed into some swimmers and got two towelling robes. Wearing one I went back out to the living room. Gwen was sitting on the edge of the sofa. I handed her the robe and told her to go and get into her bathing suit. She arrived back a few minutes later wearing the robe and we sat there in the living room. She sat with her legs under her reading a magazine. Her robe gaped slightly at the top and I could make out the top of a blue swimming suit. Time would tell if it was a suit or a bikini.

Let me describe Gwen. She's 26 years old, about 5' 5" and curvy; with straight, shoulder length, brown hair. Judging by what I saw the other morning when she came out in her underwear, I'd guess she was a B-cup, she's a bit hippy, but great thighs. More pear-shaped I think they call it. She had her hair twisted up and pinned to the top of her head. No doubt to keep it out of the water and dry.

Me on the other hand. I'm about 5' 7" and scrawny. My vital statistic is about 5½" when fully erect (that ½" is very important lol), nothing like the 12" monsters that porn stars possess or the 8" 'rod of steel' that most guys would claim to have.

"Do you think it's ready?" asked an excited Gwen as the clock showed 4pm.

"I'll check," I said.

Coming back in I said, "We're ready."

Gwen almost skipped out to the tub she was so excited. I had to smile to myself and was pleased she was having fun. Once at the tub I led the way by taking off my robe and hanging it on a nearby hook. Climbing in I settled down while Gwen removed her robe and followed me in. It was a bathing suit. Not too low a neckline but enough that it showed some cleavage. The cups must have had some padding as her nipples didn't poke through. The bottom of the suit went a couple of inches down her thighs thus giving her ass an ample covering. More's the pity, I thought before mentally chiding myself for the taboo thought.

"This is lovely," she said sporting a wide grin. "I could certainly get used to this."

"You can use it as often as you want sis."

"Why do you not use it more often?"

"On my own it seems a bit sad and lonely and I can't be bothered for just me."

"What about friends? Do they not use it?"

"None of them know I have it. I didn't want to be pestered by them always wanting to use it and end up losing some of my 'alone time'."

"Who all have used it?" Gwen asked.

"Just me and now you."

"Am I privileged then?" she said mockingly.

"Yes. I suppose you are," I laughed.

We sat in silence for a while before Gwen asked what else it could do. I turned on the jets and she cooed as it massaged her body.

"I could definitely get used to this," she smiled.

She moved about on her seat trying out different positions. During one such adjustment she let out a brief squeal, moaned quietly and laughed.

I looked over and she blushed. I didn't ask if the jet had hit her pussy but judging by the look on her face I'm sure that's what had happened. I smiled.

We bathed for about half an hour in a comfortable silence broken every so often by Gwen sighing as she unwound and relaxed.

"I think I'd best get out now," she said.

"It's too relaxing and I'm afraid of falling asleep."

"It can have that effect on you."

She stood up very carefully and gingerly stepped out.

"God it's cold," she said as she grabbed for her robe.

"I told you it can feel like that, but you get used to it eventually."

"I'm away in to get dried and dressed."

"I won't be long," I said.

Standing up I too, stepped carefully out of the tub and put my robe on. Gwen was right, it was cold. Before going indoors I put the lid back on and secured it, then making sure everything was turned off I went into the kitchen. Gwen was nowhere to be seen. I headed for the bathroom to get sorted when I heard the shower.

"You having a shower sis?"

"Yes. Will just be a minute."

"Take your time."

I went into the kitchen and made some coffee for us both. As I was setting it on the dining table I caught the back view of my sister leaving the bathroom and going into her room. It wasn't so much an erotic sight more the thought of her wearing nothing but a towel wrapped around her.

"Is that you done?" I shouted.

"Yes, sorry I should have said."

"Coffee on the table for you."

"Thanks."

I slipped into the bathroom and had a quick shower before getting dressed and joining Gwen in the dining room. She was wearing her nightie and her pokies were proof of her not wearing a bra.

"I'm going to have an early night," she said.

"I think the hot-tub tired me out. Night night big bro."

"Goodnight."

The next morning I got up to make breakfast. Gwen was already up having a coffee.

"Morning sis. How'd you sleep?"

"Like a baby. Maybe I should hot-tub more often."

"As often as you want sis."

"You serious?"

"Of course, if it's helping you sleep then evenings would be better."

"What about this evening then?" she asked.

"Sounds like a plan," I replied.

"Would you mind if we had some supper while bathing? Or would you rather keep food away from it?"

"I suppose a glass of wine or two wouldn't hurt."

"Even better," she laughed.

I spent the rest of the day reading and watching some TV. Gwen went out to get some wine and do some shopping.

About 4 o'clock I turned the hot-tub on and by the time we'd eaten dinner, washed and stacked away the dishes and let our dinner settle within us, it was almost warm enough to use, so we went and changed. All robed up, we went out to the tub. This time Gwen was wearing a loose white t-shirt and bikini bottoms. She noticed my stare and said, "The swimsuit last night was too warm and got a bit uncomfortable. Thought I'd try a tee and bikini bottoms."

"Whatever keeps you comfortable sis."

We sat for a while enjoying the soothing water.

"Oh damn."

"What's wrong sis?"

"I forgot the wine."

When she sat up and got ready to climb out I noticed her tee had become see-through, showing off her boobage. Her pink nipples hardening as the cool air hit them. A beautiful sight.

"It's ok sis," I said. "I'll go get it."

I didn't want her getting embarrassed if she looked down and saw how exposed she was. She must have forgotten that her T-shirt would go see-through. She was still sitting up straight and it was all I could do not to stare at her beautiful breasts.

I climbed out, put on my slippers and went into the kitchen to get the wine and glasses. When I came back out she was sitting deep and her modesty was once more intact. Pouring the wine, we clinked our glasses and said "Cheers."

A slightly uneasy silence followed. I wondered if she'd realized what happened.

"Want a refill?" I asked.

"Yes please."

She sat up as I refilled her glass and her boobage was on show again. I gave it a quick glance hoping I wouldn't get caught. I don't know if it was the wine, the sensuality of Gwen's 'Miss Wet T-shirt' or both; but my cock started to stiffen. I chided myself for being pervy.

After a few more minutes of silence Gwen spoke.

"Thanks for earlier bro."

"What did I do?"

"You went and got the wine."

"It was no big deal."

"Oh it was and you know why."

I gave her a puzzled look and tried to look confused. She just smiled and sat up straight thus lifting her boobage back into view. This time I couldn't ignore the offer.

"I realized that you had forgotten that your tee had become see-through and your boobs were on show."

"It was sweet of you. Thank you."

"No worries."

Maybe it was the wine, or maybe the relaxing atmosphere or a bit of both, but what she did next surprised me. She took her top off and sat there with her naked boobs above the water for all to see.

"No point in hiding them any longer since you've more or less seen them," she laughed.

"No I suppose not," I smiled and hoped I could adjust my crotch without her noticing.

She sank back into the water but her boobs and nipples were still quite visible. My cock was now twitching so I took a big swig of wine.

"Any wine left?" asked Gwen.

"About half a glass. Want it?"

"If you don't."

I leaned over to pour it out. Gwen sat up and leaned over too. This action lifted both her boobs clear of the water and I got busted.

"Like the view?" she asked laughing.

"Any man would," I replied.

She sat up straighter and thrust them out. She was definitely in a cheeky mood and I wasn't complaining.

We sat in a more comfortable silence for a little while longer before getting out. Thankfully my cock had deflated and Gwen didn't rush to cover up.

Once back in the house I made coffee while Gwen showered and got ready for bed.

"I'll take the coffee to bed if you don't mind. Between the wine and the hot water I'm quite tired. Goodnight bro."

"Goodnight sis."

I had a shower and as the memories of Gwen's naked breasts and stiff nipples flooded my brain, my cock responded as cocks do. I rose to my full 5½" and before long I shot several ropes of cum over the shower. It was an intense orgasm and my knees buckled slightly. Once recovered, I wiped the shower down before getting dried and going to bed.

The following week went quietly and apart from the occasional undies parade from each of us; nothing really happened, until Friday morning when Gwen asked if we could use the hot-tub. I set the timer for 3pm and turned everything on. It should be ready for about 7pm. Then it was off to work.

"What all can the hot-tub do?" asked Gwen as we ate dinner.

"It's not one of the 'all-singing-all-dancing' ones, it just heats the water and as you've seen has a few jets."

"Can we try it as a Jacuzzi tonight?"

"Sure. Play with it as you want sis."

Once dinner was over and the dishes were done, we got ready. I was first out and was already in the tub when Gwen arrived.

"Hope you don't mind some more wine?" she said.

"Not at all sis."

Sitting the glasses down she poured the wine then removed her robe to reveal her wearing just bikini briefs. I must have looked stunned.

"Well you saw all last weekend," she said. "So I saw no point covering up this weekend. Do you mind?"

"Not at all. Why would I mind? Like you said. Seen them," I said winking at her.

She laughed and sat down before lifting her glass and wishing me good health. Resting her head back she closed her eyes. Her breasts were clearly visible beneath the surface of the water and I struggled not to look. They were beautiful and the pink nipples sat proud. Since the water was warm I was assuming her stiff nipples meant she was aroused. That pervy thought got me aroused and I was hoping her eyes were fully closed and she wasn't watching me ogling her.

"Can you turn the jets on bro?"

I turned them on and she giggled as the water foamed and bubbled around her.

"Mmmmm, this is wonderful," she said keeping her eyes closed.

The turbulence hid her naked boobs and so I was able to relax and not struggle to avert my gaze. Closing my eyes I leaned back and felt the warm water massage me. I could feel the tension easing from my body. I should really make more use of my tub.

Then I thought I heard a quiet moan. Carefully I opened my eyes and squinted across at Gwen. She was leaning at an odd angle. Her body was moving slowly and very gently. Was she aiming her pussy at one of the jets? Her breathing became heavier and she started biting her lower lip. She was aiming her pussy at the jet. Naughty sis. That thought made my cock tingle and it began to stiffen again. Witnessing my sister pleasure herself was so wrong, but what could I do?

"More wine sis?"

My sudden question roused her from her ministrations. In an attempt to sit back up straight she slipped off her seat and went under the water. Instinctively I reached out to grab her, only to grab hold of her left boob. Once I realized what I'd a hold of I let go and recoiled back into my seat. Surfacing, she shook her head from side to side to get rid of the water on her face and stood up straight. Using her hands she wiped the rest of the water from her eyes and face. These actions caused her boobs to bounce and wobble. A highly hypnotic and erotic sight and one I shouldn't really have enjoyed. But I did.

Once she'd regained control she sat down again.

"Sorry sis," I said apologetically. "I didn't mean to startle you.""It's ok. No harm done."

"Would you like a refill?"

"Please."

She lifted her glass and I filled it before filling my own.

"You ok?" I asked.

"Yes, I'm fine," she said with a wide smile.

"I must have dozed off."

"Yes, it does happen," I agreed. "Though dozing wasn't what you were doing", I thought.

We sat in silence for a while losing ourselves in our own thoughts. My thoughts were swamped with visions of her cumming by pleasuring herself on the Jacuzzi jets and my first touch of her boob. The softness of her skin. The firmness of her B-cup, as well as wondering what her nipple would feel like. Wondering if it was stiff. My cock twitched once again in my shorts. I felt guilty harbouring such thoughts and having my cock re-act the way it did.

"Any plans for tomorrow?" asked Gwen.

"None at all maybe a bit of shopping. You?"

"I need to maybe get a better bikini for the tub," she said smiling.

"Bikini? Bottoms would be more like it now that you're letting the girls out," I laughed.

"Maybe I will then," she replied. "In fact I have some panties that just might do. I'll have a look later."

The thought of her wearing just panties made my cock stiffen even more. I don't think I'll be getting out of the tub anytime soon.

We chatted on for another while before Gwen announced she'd better get out before she fell asleep again. She stood up showing off her bare breasts. Put her fingers under the crotch of her bottoms and tugged them free from her ass crack. The water ran off her boobs dripping from her stiff nipples. It was an awesome sight and I had a very stiff cock now.

"You coming bro?" she asked.

"Think I'll sit a while. Give you time in the shower before I go for mine," I lied hoping she wouldn't realize my true reason.

"Ok."

She stepped out and didn't bother with her robe. Bending over to put her slippers on she gave me a great view of her ass and as she skipped along the side of the house I watched her ass sway. I just had to release my cock. It was getting very uncomfortable. So, there I sat waiting for my erection to subside.

It took a while but eventually it did soften. I climbed out of the tub, secured the lid and went inside. Gwen was nowhere to be seen so guessing she was in her room, I had a shower. As I emerged from the bathroom to cross into my room, Gwen came out of her room still wrapped in her towel and carrying a bunch of what looked like panties.

"Is that your potential tub wear?" I asked.

"Could be," she winked. "You'll have to wait and see."

"Ooohhh sounds promising," I laughed.

"Goodnight sis."

Once in my room I dropped my towel and gripped my stiff cock. In the past few days I'd not only seen my sister's boobs but grabbed one, albeit accidentally and now she was sorting out hot-tub wear that will allow her to sit topless. She'd also masturbated on the jets while sitting beside me. Before I realized it, my balls were tingling and starting to fire their seed. I managed to aim it at the towel so as not to get it all over the carpet. I let out what I hoped was a muted moan, hoping Gwen didn't hear. My legs buckled under the release and my heart pounded as I staggered to the bed to sit down. That was even stronger than my last orgasm and once recovered I wiped my cock with the towel before throwing it into the wash bin and crawling into bed. Sleep came easily.

The next morning I woke late. It was 10am. Putting a top and trackies on I went into the kitchen. There was a note on the table from Gwen telling me she'd went shopping and should be back around dinner time. I had a quick breakfast before starting my chores of laundry and cleaning. The day flew by and I was eating dinner when Gwen arrived back with all her shopping.

"I bought a few nibbles for later," she said.

"Sounds good sis. What did you get?"

"Nachos, dips, nuts and crisps," she replied.

"We have wine, don't we?"

"In the top left-hand cupboard."

"You want red or white?" she asked.

"I don't mind sis, whichever you prefer."

I heard the kettle being boiled and something being put into the microwave. A few minutes later she joined me at the table and ate her dinner.

"Buy anything nice?" I asked.

"Just some tops."

"For anything special?"

"No. I just needed a few new ones for the summer. Last year's aren't great but do for lying around the house or now hot-tubbing," she laughed.

"You're really getting into the hot-tub culture, aren't you?"

"I really do enjoy it. Don't you?"

"I do and more so now I've company," I said.

"Ahhh, that's sweet of you to say," she said blushing slightly. "And it's nothing to do with my naked boobs," she said with a wink.

Now it was my turn to blush.

"Well?" she said.

"I'm certainly not going to deny they help," I laughed.

"I'm glad you approve." Gwen laughed too.

We cleared the table and did the dishes before settling in front of the TV. After a couple of quiz shows and a talent show, Gwen wanted to know if we were tubbing and whether I'd prefer our nibbles in the tub or after. I said during would be fine and went out to check that the hot-tub was ready. I'd set the timer earlier hoping she would want to use it again. Gwen prepared the nibbles.

I went to my room and got ready. When I came out Gwen was standing in the kitchen in just a pair of white panties.

"Someone's keen," I laughed.

She turned quickly causing her bare breasts to swing back and forth. It was highly erotic. I tried not to look. I failed. Her white pants were what I think are called 'high legs'. They were brief but covered her modesty adequately. I was just curious about them being white and what would happen when the water hit them. Did she realize too? Was her choice deliberate? I felt my cock twitch with anticipation.

I carried the plates of nibbles while Gwen brought the wine. We settled into the tub, chinked our glasses saluting each other's health and started to relax.

"How're the repairs coming on?" I asked.

"The builders say things are going well.

They've replaced the pipes and are almost finished with the floors and ceilings. Another few weeks should do it."

The thought of just having another few weeks saddened me. I had gotten used to her company and was going to miss it. Then my brain asked if that was all I was going to miss. I chided myself for thinking of my sister that way.

"I think the wine is running through me. I need a piddle," she said.

She stood up and stepped out of the tub with her back to me. As I thought, her pants had gone see-through and her ass was clearly visible, her cheeks jiggling as she walked along the side of the house. Thankfully I was able to adjust my cock to a more comfortable position while she was gone. Just as well I did because as she turned the corner of the house on her way back, I could see her pants were still very wet and her brown pubes were visible. A lovely thick rug with some wisps poking out the sides. I hoped I wasn't busted and if I was she didn't make it obvious.

We settled down to our usual comfortable silence. I was lost in my incestuous thoughts about her wonderful breasts with the very stiff nipples; her jiggly ass cheeks and the vision of pubes showing through her wet pants. It was just as well I'd adjusted my cock as it was now very stiff and threatening to poke out over my waistband.

Soon it was time to call it a night. As usual Gwen got out first. She stood up and let the water drip off her body. The sight of the water dripping from her stiff nipples never ceased to enthral me.

"I thought you'd be used to seeing them now," she said teasing me.

"They're a sight that will always be good to see," I replied.

"Perv," she laughed as she stepped out and walked away. Her virtually naked ass cheeks wobbling as she walked. My cock was now at full-mast. I would have to wait a little longer. Afterwards I had my orgasmic shower before bed.

Sunday morning, I woke late again and found a note from Gwen on the table. She was meeting up with a few friends for a day out and hoped to be back in time for our evening hot-tub.

I set the timer again and spent my day watching Jason Bourne and Mission Impossible DVDs. By 8pm, Gwen still hadn't come back so rather than waste the hot water I got into the hot-tub alone, missing my hot-tub buddy. It was only then I realized how much I'd gotten used to having her around.

I must have dozed off because I was startled by the sound of the patio door opening. Gwen then came round the corner of the house wrapped in her robe.

"Sorry John. I didn't mean to be this late, but Sarah has been having bf problems and we were trying to re-assure her and help her decide what to do."

"Not a problem. I thought you were going to miss out on your relaxation."

"I thought you wouldn't turn it on and I would miss out. I'm glad you did."

She removed her robe to show her naked boobs and very skimpy thong bottoms. From what I could see in the fading light she must have trimmed her pubes as the front of her thong was quite narrow and no hairs were in sight. That view made my cock rise quite quickly and as she stepped in she showed off her bare ass cheeks. She was either getting very relaxed in our new relationship or she was teasing me. I fought hard to stop my incestuous thoughts going into overdrive.

She sighed heavily as she sat down and relaxed.

"This is wonderful," she said.

After a few minutes she asked if I would turn the jets on. I did and she sighed again. I closed my eyelids as far as I could but still be able to see her and watched. Was she going to use the jets to masturbate? I didn't have to wait long for my answer. Slowly she adjusted her position, moving I'm guessing, until she was positioned over a jet. Her facial expression changed and soon she was biting her lower lip. I noticed her hand moving down to her crotch and her legs spreading. Had she moved her thong to the side to let the jet blast her bare pussy? That naughty thought made my cock twitch and get very stiff. Slowly her body started to move. Her hips seemed to be moving in a small circular fashion and her breathing was getting heavier. She glanced quickly over at me to see what I was doing. Hopefully my almost closed eyes fooled her into thinking I was possibly asleep and that I wasn't watching her. Still watching me I could see her eyes starting to glaze over. She was close to cumming. I hoped she wouldn't bust me and I also hoped that the intense tingling in my cock and ball sack wouldn't end up with me cumming too. The shower wall was going to get another pasting later.

Her breathing got heavier and more nasal. Her boobs were rising and falling quicker; her nipples were very stiff. Her eyes suddenly closed and she held her breath. Her body twitched and her boobs jiggled as her orgasm hit her. By the looks of it, it was a big one. Slowly she relaxed and released a long, quiet breath. She relaxed her jaw and opened her eyes. I made no movement allowing her the dignity of thinking she'd cum without me knowing. I would remember this for a long time and no doubt use it many times in the future to help me cum.

After a few minutes Gwen leaned over and tapped me on the shoulder.

"John. Are you awake?"

I pretended to stir.

"You OK sis?"

"Yes. Just thought I'd head in. I didn't want to leave you on your own sleeping."

"OK. Thanks. I'll follow you in."

She stood up, the water running down her almost naked body. Droplets dripping from her stiff nipples. Still a highly erotic sight. Stepping out of the tub she walked towards the door. It was then I made my mistake. At the door she stopped and looked back. I hadn't noticed and stood up. The bulge in my shorts was obvious, even in the poor light. I caught her looking and her mouth gaped slightly.

"Oh f**k," I thought. "Do I cover up or do I pretend I haven't noticed her looking?"

Unfortunately my brain wasn't working quickly enough and I instinctively covered up. She smiled and went into the house.

Next morning we chatted over breakfast but she never mentioned my cock stretched shorts from last night. Maybe she hadn't seen as much as I'd feared.

"I'm finishing early today," she said. "I'm owed some time so I'm taking the half-day to do some shopping. Is there anything you need?"

"I don't think so," I replied. "We've enough food haven't we?"

"Yep, plenty. What would you like for dinner and I'll have it ready?"

"Can't think of anything I'd particularly like.

So whatever you fancy making will suit me."

"OK, I'll check the fridge when I get home."

When I arrived home at 6pm, I was greeted by the wonderful aroma of spaghetti bolognaise.

"Hi sis," I announced. "Spag bol for dinner?"

"Yes, you don't mind? You said whatever suited."

"I don't mind at all. Am quite hungry so hope there's plenty," I said as I entered the kitchen.

Gwen was standing at the cooker wearing a full apron as she stirred the sauce. The apron didn't fully meet at the back and showed off her bare back underneath. Should I say anything? Or just ignore it and see what happens?

"It'll be another couple of minutes if you want to change," she said.

I took the chance to escape and got changed into a t-shirt and shorts.

When I returned Gwen was putting the finishing touches to the dinner by grating parmesan cheese over the dishes.

"Can you do the wine bro?"

I poured two generous glasses of wine and we tucked into a very tasty meal.

"This is great sis."

"Thank you. I suppose it's my special since I cooked and experimented with it quite a lot in my own place."

"Talking about your own place; how're things going with it?"

I thought I caught a glimpse of sadness pass across her face.

"The builder says all is going to plan and it should be ready on schedule."

"That's great," I said smiling.

Her face fell slightly and then I realized how that remark must have sounded. She probably thinks I can't wait for her to go home. That was so not true. In reality I was going to miss her company. How am I going to rescue this without me digging a deeper hole?

The rest of the meal passed quietly. It seems my comment killed the mood.

Once finished I insisted on doing the clearing up since Gwen had done the cooking. She left and went to her room, returned in her jammies and picked up her wine before heading to the living room to watch TV. As I cleared up I thought about how to let her know that I wasn't looking her to leave so soon. I decided to just take the bull by the horns and hit the problem head on.

Once everything was tidied away I lifted my own glass of wine and sat on the chair next to Gwen. Then taking a deep breath, I started.

"I think you may have misunderstood me earlier sis."

"What do you mean?" she said nonchalantly.

"I enjoy having you stay here. My comment about your flat being ready on-time was not an indication that I was looking rid of you. I was just happy for you."

She turned and looked me in the eye.

"I know that you'll have to leave soon and get back to your own place. No matter how welcome I make you feel, you won't be as comfortable and relaxed here as you would at home. I'm not particularly looking forward to your going back home, but I know it will happen. I just hope that when it does we'll make more of an effort to keep in touch and meet up more often than we used to. Maybe occasionally make dinner for each other. Have movie nights or just meet up for a coffee."

I saw her face soften and the spark return to her eyes.

"I'm sorry if what I tried to say made you feel unwelcome. It certainly was not intended to sound that way."

"That's OK bro. In my heart I knew what you meant, it was just that it sounded harsh. I'm just being too sensitive."

She reached across between us and squeezed my hand.

"I'll head off to bed now if you don't mind," and at that she rose and went to her room.

Shit, I thought. I've ruined everything.

The rest of the week went quietly. Evening meals were consumed with the usual polite small-talk. How was your day? Any plans for tonight/tomorrow, etc. I was beginning to wonder if we'd ever get back to what we had. The thought of that not happening saddened me. Then on Friday, as we had breakfast together Gwen spoke.

"John, I'd like to apologize for how I've behaved this week."

My puzzled look seemed to make her explain herself better.

"I over re-acted to your comment earlier in the week and I was just feeling sorry for myself. You've been a great host and brother and I don't want to spoil the memories we've shared recently."

"It's OK sis. I understand. I just didn't think carefully enough about what I said."

"Fancy a take-away tonight?" she asked.

"That would be fun."

"Pizza? Chinese? Indian?" she asked. "My treat."

"OK, on one condition?"

"What?" she asked somewhat nervously.

"We have a hot-tub session after?"

She smiled broadly for the first time in days.

"Deal," she agreed.

We hugged and I left for work giving her the choice for dinner.

Work that day went well and there was lightness in my step. All was good with the world again.

When I arrived home, Gwen was already there with Chicken Korma, Lamb Biryani, pilau rice and peshwari naan. The smell of the food made me realize how hungry I was.

"I'll serve if you do the wine bro."

While we made short work of the food and we filled each other in on how our respective days were.

"I'll sort the dishes if you sort the hot-tub?" she said.

I cleared the dishes to the sink and went outside to check the hot-tub had turned on. Back inside I dried the dishes as Gwen washed before going to get ready for the tub.

We sat on the sofa sipping some more wine as we waited for the tub to finish heating and our dinner to settle within us. After an hour, the water was ready and so were we. I followed Gwen out to the tub carrying our glasses of wine. Gwen took her robe off revealing yet another skimpy thong. Keeping her back to me, she leaned slightly forward, held onto the side of the tub and stepped in sideways. As she lifted her left leg and stretched it into the tub her thong wedged between her pussy lips. It left very little to the imagination. My cock twitched its appreciation. Did she realize what she just did? Was it deliberately for my benefit? She then turned ready to sit down. Her glorious breasts with their stiff nipples, bounced as she lowered herself into the water. I prayed she didn't catch me ogling her and mentally slapped my perviness. I handed her both glasses as I took off my robe and hoped she wouldn't notice the bulge forming in my shorts as I gently stepped in.

"I missed this during the week," she said.

"What's going to happen when I move out? Will I still be able to come over and use it?"

"Of course you can. Just because you move back home shouldn't stop us using it," I replied.

"You can even sleep over rather than drive back home if you'd like."

"Can I?"

"Of course."

"Thanks bro," she said as she got up and leaned over to give me a kiss on the cheek. However, she slipped and instead of a kiss on the cheek I got her left boob squashed into my face. As I tried to catch her my left hand ended up grabbing her other boob. Her left tit was on my face and my hand held her right one. What a picture that would make.

She managed to regain her balance and sat down again.

"Well that didn't go as planned," she laughed.

"I'm not complaining."

"I'm sure you won't," she said. "A tit in your mouth and another in your hand. What man would complain?"

"Well, you're mostly right," I said.

"Mostly?"

"The tit wasn't in my mouth," I replied with an exaggerated frown.

That seemed to relax her all the more as she let out a real belly laugh.

"More wine sis?"

"Please."

I climbed out, brought the bottle from the kitchen and split what was left between our two glasses, before climbing back in.We sat in silence each lost in our own thoughts. Mine were reliving holding her boob again and feeling her boob squashed against my cheek. If only I'd turned slightly, maybe I would have got her nipple in my mouth. Those thoughts were getting me stiff. I needed to try and calm down.

"Think I'll head to bed bro. The wine and the heat are making me sleepy as usual."

"Goodnight sis. See you in the morning."

Gwen got out in a similar way to how she got in. However, the fading light deprived me of another clear glimpse of her pussy. I watched her virtually bare ass cheeks jiggle as she took her robe and walked back into the house. This time I remained seated so as not to show my stiff cock straining within my shorts.

The next morning I lay on, deciding what to do with my day. Apart from my usual housework, I had nothing planned. My mind went back to yesterday and I was pleased that Gwen and I had sorted out our difficulty and my morning woodie twitched as I remembered the 'boobs' incident. Before I got too distracted by it all and would need to jerk off to relieve the pressure, I got up, dressed in trackies and a t-shirt and went into the kitchen.

Gwen was ironing her blouse and dressed only in a skimpy thong. Her breasts swayed beautifully as she used the iron. It was still hypnotic and I was amazed at how relaxed she had become about her showing-off her body. I said nothing as I went to fetch a bowl and some cereal.

"Morning bro."

"Morning sis. You heading out?"

"Yes. Some girly time then lunch."

"And no doubt sorting Sarah's bf troubles too."

"No doubt," she laughed. Then lifting her blouse off the ironing board she walked towards me and draped it over the chair beside me. As she walked back to the iron she held her right boob and pushed it towards my face aiming it for my mouth.

"Since you complained last night that you didn't get a suck," she said as she brushed her nipple across my lips.

I instinctively opened my mouth and she pushed her nipple in. I kissed rather than suckled before she pulled it out.

"Happy now," she said with a wicked grin.

"I suppose it'll have to do," I replied with my mock frown.

She laughed and went back to her ironing.

What just happened my brain screamed? Did my sister just get me to suck her tit?

I could feel my woodie returning. I'd better get busy before I do or say something silly. So I got up, hid my crotch and headed back to my room to gather my laundry.

When I returned to the kitchen, Gwen has just finished her ironing and was walking back to her room. Her ass cheeks jiggling as she walked. For all she was wearing she may as well be naked I thought. I wished and then felt guilty for thinking that. Over the past few weeks that Gwen has been here, there has been a lot of guilt about the incestuous thoughts I've been having. I'm not into incest and don't want to have sex with my sister, but that doesn't stop me enjoying the sight of her body and the few feels I've had of her boobs, not to mention the feel of her nipple in my mouth.

Right, I'd better get busy and distract myself.

As I loaded my laundry into the machine, Gwen said her good-byes and left, saying she should be home about 5pm.

"If you want pizza for dinner then text me when you're on your way home and I'll order one in. What would you like on it?"

"What about chicken and mushroom?" she replied.

"Fine by me. Let me know when you hope to be home and I'll have it ready."

With that she left.

Her text arrived shortly after 5, telling me she was on the bus and would I prefer if she collected the pizza. I told her that would do and finished off the ironing I was doing. Twenty minutes later she came through the door. I hurriedly sat the table and poured two beers from the fridge.

She told me about their girly lunch and how Sarah was going to dump her boyfriend. I didn't really know him. I'd only met him the once when I bumped into Gwen and her friends in town one evening a few months back. Apparently he'd been cancelling dates too often at the last minute without any great explanations. Sarah was a nice girl. She was about the same height as Gwen, shoulder length fair hair, quite thin and a nice smile and deserved to be treated better.

By then we were finished eating. I cleared the table and put the pizza box into the recycling bin.

"Are we hot-tubbing tonight?" she asked.

"Sure, if you want."

I left to check it had already turned on and when I returned Gwen must have been in her room. I lifted my clothes off the ironing board and went to my room to put them away and change into my tub gear. As I did, I wondered what Gwen would wear tonight. The skimpy thongs she'd been wearing lately barely covered her modesty. I'd have to wait and see. My cock twitched, no doubt it was anxious to find out as well.

I went back out to the tub to check the water. It was warm enough so I removed my robe and climbed in. A few minutes later Gwen came out. She removed her robe to reveal the most revealing thong yet. It must have been smaller than she imagined as the small triangular piece at the front did not hide her bush completely. Did she not check how she looked in the mirror? Or maybe she did and had deliberately not trimmed to tease me. Whatever the reason my cock twitched its appreciation. Climbing in, she settled herself and let out a soft sigh as she sank into the warm water.

"This is the life," she said smiling.

I agreed.

Silence reigned for the next few minutes as we both relaxed and enjoyed the warmth of the water on our skin, letting the heat ease away the tensions of real life.

"Is it OK the turn the jets on?" Gwen asked.

"Of course," I said. "Fire away."

In anticipation of what I thought might happen I closed my eyes, but not tightly. I wanted to watch sneakily as I'd done before. Soon after turning the jets on, Gwen checked what I was doing. Satisfied that I wasn't watching I saw her hand slip towards her crotch, and then she adjusted, I assumed, to get her bare pussy over the jet. Her eyes shut tightly. Her head went back and she bit her bottom lip. It seems she's found the jet and was enjoying its ministrations. Her breathing quickened; she glanced quickly at me to check I wasn't watching. She did all she could to hide her orgasm before her body relaxed and she smiled a satisfied smile. I said and did nothing for a few minutes to let her enjoy the thought of secretly cumming beside her brother as well as giving my stiff cock time to deflate.

"Fancy a beer and some crisps?" I asked.

"Thanks bro. That would be lovely."

I stepped out, put on my slippers and went to the kitchen to retrieve the beers from the fridge and lift the crisps. When I returned Gwen had turned the jets off. Her beautiful boobs were clearly visible through the water and her nipples were very stiff.

"Enjoying the view bro?"

I was busted.

"What's not to enjoy," I said trying to laugh it off.

"Perv," she replied waggling her eyebrows.

"Want more to look at?" she asked.

"More?" I replied puzzled.

"Well, as you've no doubt noticed, my thongs don't really hide much. I may as well be naked. So how about we try it?"

"You want to go naked?"

"Not just me," she laughed.

"Me too?" I said shocked.

I almost dropped what I was carrying.

"Yes, you too."

What was happening here? My sister wanted to get naked with me.

My brain was screaming "Noooooo."

But my cock was saying yes.

"Er, ahmm... I don't know sis," I stammered as I stood rooted to the spot.

A fantasy was about to come true and I was hesitating.

"I would just like to find out what it's like to be naked in the tub. I've been trying to find out by wearing skimpier thongs, as you've no doubt noticed," she said with an exaggerated wink.

Boy, have I ever noticed.

"I think you'll enjoy it too and if you don't we don't do it again," she said pleading slightly.

I was still hesitant.

"If you're worried about an erection..."

There she said it. What was coming next my brain screamed?

"... then don't be," she continued. "I almost saw it a few nights back when you stood up and I turned around un-expectantly."

I knew I'd been busted that night, but thought because of the fading light she hadn't noticed. But she had.

Slowly she stood up. Once she'd gotten her balance, she slowly peeled off her thong. Then stepping out of it the tossed it onto the ground and stood up straight. I couldn't help but look her up and down. Her beautiful, firm breasts; water dripping from the tips of her stiff nipples; her thick but trimmed bush glistening. My mouth dropped open.

"Can I assume you approve?" she said.

I closed my mouth and stammered, "Yes."

"Well," she said waggling her eyebrows again and staring at my shorts.

I can't back down now.

I handed her the two beers and crisps and as confidently as I could I dropped my shorts and stepped out of them. Thankfully my thickening cock was pointing south. But if I didn't make a move soon it would be pointing at the sky. I stepped in and sat down as quickly as I could.

Big mistake!!

Gwen turned to face me and hand back the beers and crisps so she could sit down. Her pussy was directly in my eye line. My cock stiffened. Could she see it from where she was standing? I hoped not and could feel my blush spreading across my face and neck.

Reaching up I took the beers and as she lowered herself down, her knees spread revealing her pussy lips in all their glory.

Was that accidental I wondered? Or was that deliberate? I wasn't sure. The male in me wasn't complaining.

Once settled I gave her her beer and a packet of crisps; we said cheers and took a swig. Boy did I need that swig.

Not a word was spoken for what seemed an eternity but in reality, was probably only seconds.

"Well, what do you think?" she asked.

"About what?" I replied.

My head was in such a muddle I didn't know what she meant. Did she want a comment on her body? Her boobs? Her delicious pussy? What do I say?

"About being naked in the tub silly."

My brain breathed a huge sigh of relief.

"It is strangely pleasant," I replied.

"Have you never been naked in the tub?" she asked emphasising the never.

"No, never."

"You never even contemplated it?" she asked with surprise.

"Nope."

She took another drink, settled back and closed her eyes. I did the same.

Meanwhile my brain was racing. Thoughts were careering and cascading around in my head. In a few short weeks I've moved from modestly sharing my home and hot-tub with my baby sister, to sharing my home and hot-tub with my beautiful and very naked sister. How had this happened? Did I want this to be just a one-off? Or was I happy to let it continue? My real head was saying no, be very careful. My 'other' head was saying happy days but be careful.

"You OK bro?" she asked with some concern in her voice.

"Yes I'm fine," I replied as confidently as I could.

"You sure?" she continued. "I didn't think you'd mind."

"I don't," I tried to say with a smile. "I just wasn't expecting it."

"I'm sorry if I embarrassed you," she said apologetically.

"Seriously, it's fine. Like you said; you've been more or less naked for a while now. Your thongs didn't leave much to imagination," I said hopefully with a convincing smile.

"Well that's true, but I've now forced you to go naked. I should've talked it over before pushing you into it," she frowned.

"It's possible if we had talked it over and you hadn't 'pushed it', it may never have happened," I managed to say with confidence.

"Thank you," she smiled.

A few minutes of a more comfortable silence followed. I relaxed and enjoyed feeling the warm water on my cock and scrotum. It was indeed a strange but pleasant feeling. Is this what skinny dipping feels like? I could definitely get used to it.

"Fancy another beer?" Gwen asked.

Her question roused me from my thoughts.

"Yes please," I replied. "Can you manage a bowl for the crisps too, or do you want me to get it?"

"I've only two hands bro," she said with a smile.

We both stood up and carefully stepped out of the tub. I watched as her naked ass cheeks jiggled in front of me and hoped my dangling cock didn't stiffen and embarrass me. Gwen got the beers from the fridge while I got two bowls to put the crisps into. I got back in first, set the bowls down before taking the beers off Gwen, allowing her to step in. She stepped in as she did once before, with her ass facing me. This time there was no thong to obstruct the view of her pussy. Did she realize what she was doing? Was she deliberately teasing me or did she not know that she was displaying herself? I couldn't look away. It was an amazing sight. Her lips were plump and it wasn't just the water that made them glisten. They were slightly open and my cock went straight to its full 5½ inches. I was hoping she wouldn't notice. Once she was seated I handed her both beers while I opened the crisps and divided them into the two bowls. I gave her a bowl and she gave me a beer. We cheered our good health, had a sip and ate the crisps in silence.

After a while, Gwen announced she was getting tired and climbed out. No show this time. Why was I feeling disappointed? I mentally chastised myself for even thinking that way. This was my sister I was thinking about. It was wrong on so many levels. But I couldn't help it.

Sunday morning arrived. I was up first and making my breakfast when Gwen sauntered into the kitchen. She was stark naked and rubbing the sleep from her eyes. Suddenly she realized I was there and attempted to cover her pussy with her hands.

"I'm so sorry John," she said with conviction.

"I didn't realize you were up."

She then spun around, went back to her room and re-appeared with a long t-shirt on.

"Sorry," she said again with what seemed a slight blush.

"It's not a problem," I assured her.

I couldn't understand where this modesty had come from considering the show she'd put on in the hot-tub. Was it the beer last night that made her do it? Was she separating the hot-tub behaviour from the everyday life behaviour? I didn't know. I was confused. Time would tell.

Breakfast was eaten quietly.

I went for a shower before leaving to visit friends. I told Gwen I'd be back mid-afternoon and to make dinner for herself, if she wanted, rather than wait for me to come back.

It was good catching up with my friends and much as I trusted them I didn't mention the hot-tub incidents:

1) They didn't know about the hot-tub anyway.

2) Even if I'd dressed it up as being accidental nudity and what should I do? I didn't want them thinking about Gwen in any way pervy nor our behaviour too.

So, I made my way back home shortly after 3pm.

"Hi sis," I said on the phone. "I'm on my way back home. Have you had dinner yet?"

"Hi John. No I haven't. Would you like me to put something on?

For a fleeting moment I wondered if I could try and be funny by asking if she meant clothes. Would she see it as funny though?

"Only if you're cold?" I said risking her wrath.

"Cold?" she replied puzzled.

I left it for a few seconds to see if the penny dropped. It didn't.

"I can call in for a take-away if you want?" I said.

"That would be nice. Shall we go for Chinese this time?"

"Not a problem. Your usual?"

"Yes please."

I arrived home with sweet & sour pork with fried rice for Gwen, Kung poon chicken with boiled rice for me and a portion of prawn crackers for us to share.

Gwen was dressed in a figure hugging camisole and tight Lycra exercise shorts. The pokies showed she was bra-less and her breasts jiggled and swayed as she ate. A nice view that didn't do me any favours. I could feel my cock thickening.

"You realize I had a whoosh moment when you rang," emphasising my comment had went over her head.

"Whoosh moment?" I replied having my own.

"When you said,' Only if you're cold.'"

"Oh," said laughing. "I hope you weren't offended."

"I wasn't," she said with a smile that reached her eyes.

She ate in silence for a while.

"It seems lately that I'm always saying sorry," she stated. "Am I being a nuisance John?"

"Not at all. Why would you even think that?"

"I don't know," she said struggling to get her thoughts into words. "First of all I go topless in front of you and I never even thought to ask how comfortable you were with that. I just assumed since you'd more or less seen them when I went all 'Miss Wet T-shirt', that there was no real point in hiding them away."

I didn't want to interrupt to re-assure her that I was comfortable with it all in case I put her off her stride. I could see she was struggling to talk this through and assumed she'd been rehearsing this all the time I'd been away.

"Then last night I co-erce you into going nude. Again, without asking if you'd mind doing it and justifying it to myself as inevitable as I'd been virtually naked the last few times anyway. You have to agree that my thongs hid very little. They never even covered my bush," she said going slightly red in the face.

Again I waited.

"Then there was this morning. Walking out totally naked. Convincing myself that since you'd seen me naked last night, then there shouldn't be a problem today. But, at the last minute I lost my nerve. I probably looked a right fool."

Her face clouded over with a look of shame and disappointment.

Again I waited. She didn't continue.

"First of all," I said softly. "You didn't make me do anything I didn't want to do. Secondly, you haven't done anything to make me ashamed of you. In fact I admire you. You were confident after the Miss Wet T-shirt incident to go topless. You could so easily have gone back to the one-piece or even a substantial bikini. But you didn't. Similarly with the thongs and yes you're right, you may as well have been naked. They didn't cover much."

I smiled and she smiled back.

"So, sis, please don't be beating yourself up over this. If you like or want to parade around naked? Or just leave your room naked to get something from another room, then feel free to do so. I think the shock has already passed. So there should be no reaction."

"No reaction?" she queried, waggling her eyebrows.

"You're incorrigible," I said laughing. "Well maybe a little reaction then."

"Just a little!" she said mockingly. "I think my body has just been insulted."

We both laughed. It seems the elephant had left the room.

We finished dinner with small talk. She knew most of my friends and I brought her up-to-date with their goings on. We cleared the table. I washed and she dried and put the dishes away.

The next hour or so was spent watching TV. I sat in my usual armchair while Gwen lay on the sofa. Her pokies had softened but not enough to have disappeared. It was then as she shifted her position that I noticed her camel-toe. I had a sharp intake of breath, a very quick look away hoping I didn't get busted looking or being seen adjusting my crotch. I had to admit I have a very beautiful, hot and sexy sister.

"Are we hot-tubbing tonight?" Gwen asked.

"We certainly can. I'll go check."

I got up and checked the timer had kicked in.

"I know it's a work night, but, do you want a drink?" I asked.

"I suppose we could risk a beer. Couldn't we?"

"I'm sure we could. Any nibbles?"

"Of course there'll be nipples," she said with a wicked smirk.

"I'll bet," I laughed.

When the tub was warm enough I left to get changed and as I did, I turned to Gwen and said, "Remember sis, nudity is not a problem. You dress whatever way you want."

She didn't reply. She just smiled appreciatively and went to her room.

I wondered if I should dress in my shorts to be safe or go naked. If she goes naked that would be fine. If she doesn't might she feel pressured or re-assured? I decided naked.I stopped on the way to get two beers from the fridge. Gwen was already in the tub but all I could see for sure was that she was topless. I sat the beers to the side and hung up my robe revealing my nudity. Turning around I picked up the beers and handed them to her as I climbed in. It was then I realised I'd made the right choice. She was naked too. I sat down and she handed me a beer and said a quiet thank you. Now I knew I'd made the right choice.

We sat in our usual comfortable silence, enjoying the warm water relaxing our muscles. It also relaxed my cock and in a strange but non-erotic way it made it thicken. No doubt it was a rush of blood similar to a hot flush that cools you. Whatever the reason it was a nice feeling.

I was roused from my reveries when Gwen asked if we should risk another beer.

"Why not," I replied and stood up to get them.

"Sit down bro and I'll get them," she said as she looked straight at my cock.

"You sure?"

"Yes."

She stood up, gave herself a little shake to shake off some water. Luckily I was now seated as my cock definitely lurched and stiffened at the sight of her breasts swaying and droplets falling from her hard nipples.

She leaned away from me and stepped out as before giving me a glorious view of her wonderful and possibly slightly aroused pussy. By this stage I was fully erect and thankful she wasn't facing me. I may not be big in the cock department but my erection was obvious.

She arrived back, handed me the beers to hold as she climbed in and treated me to the same view again. My erection came back with a vengeance. I don't know if I'd ever get used to this or to be more pervy accurate; I hoped I never got used to it. We lay back silently enjoying our beers and the peace and quiet of the early evening.

As the evening temperature started dropping we decided to call time on our watery chilling. If there was another 'show' I missed it as I was busy sorting myself out. I put the cover back on and made sure everything was turned off. Gwen lifted the beer bottles and went back into the house. I must be getting used to this I thought sadly. I never once tried to catch a glimpse of her naked ass as she walked away.

The following week passed quietly. There was no hot-tubbing. We were both busy with real-life. There was no nudity and just the occasional topless venture by Gwen from the bathroom to her room. Was she reconsidering? Or was she just being careful? It was difficult to tell.

By Friday we were looking forward to the weekend. For a change we had breakfast at the same time.

"I'm so looking forward to the weekend," said Gwen.

"Me too."

"Fancy a hot-tub evening. It's been almost a week."

"Yeah, not a problem. I'm free this weekend so we can have a weekend of tubbing."

"We'd end up like prunes," Gwen laughed.

"I suppose we would."

"I've a half-day today. Would you like me to make dinner?"

"Thanks sis. That'd be great. Any chance of your lovely spag bol?"

"Yeah, not a problem. You be home about 6pm?"

"I should be. If not I'll call and let you know."

"No problem."

And I left for work checking the timer on my way.

For some reason work seemed to drag. I was really looking forward to getting into the hot-tub and to seeing my sister naked too. Thankfully the little voices telling me I was a perv had quietened down. I kept telling myself that I was just admiring a beautiful view. Just like a beautiful view in the country.

Maybe someday I'd believe that.

Eventually 5:30pm arrived and I left for home. I knew we had wine at home but I thought I'd call in and buy a nice bottle for dinner and at 5:50pm I opened my door ready for some good food and some nice wine.

"Hi sis," I said when I got into the kitchen.

"Hi bro, dinner is almost ready. Will you set the table?"

"No problem."

I opened the wine and set it on the table before getting the plates and cutlery and setting the table. The oven dinged.

"Will you lift out the garlic bread for me?"

Getting the oven mitts I opened the oven door and stepped back to let the rush of hot air out before lifting out the tray and putting the bread onto the plate on the table.

We ate and chatted about our day, how it went and the fact that we were both free this weekend and how I'd jokingly mentioned this morning about spending the weekend in the hot-tub.

"I know you weren't serious about spending the whole weekend in the tub, but what did you have in mind," Gwen asked.

"I hadn't really given it too much thought apart from possibly tonight, tomorrow and Sunday. But what times I don't know. You any thoughts?"

"Only, like you said. Every day at some time would be nice. Have we enough food and nibbles in? Or do we need to do a quick shop?"

We had a quick check of the cupboards, fridge and freezer. There was enough food but not enough beer or nibbles.

"OK," said Gwen. "Do we shop now so we can stay in the rest of the weekend? Or as we have enough for tonight do we then use shopping as an excuse to get out for a bit tomorrow?"

"I know it's no help but I really don't mind. Depends when you want to tub tomorrow. Afternoon or evening?"

"Or both," laughed Gwen.

"Or both. The tub is on and if we go now, it should be ready when we get back."

"Ok. Let's go."

A quick trip to the supermarket got us what drink and nibbles we thought would keep us for a weekend of tubbing. When we got back it was a quick change and deciding on which nibbles we'd have this evening. As I put out what we wanted onto a tray for easier carrying, Gwen went out to the tub. When I got there she was leaning into it, legs slightly apart showing her pussy in all its glory. I stopped and enjoyed the view for a moment, but maybe a moment too long as Gwen looked back and caught me looking.

"I don't need to ask if you're enjoying the view," she said before dropping her gaze to my cock.

I was rampant and as I'd my hands full I couldn't cover up. My blush must have been comical. To my gratitude she didn't laugh.

"Nice package bro," she said as she approached and took the tray from me. "You want to get in? Into the tub I mean," she continued with a smirk.

I climbed in and sat down; she sat the tray down and handed me my beer and bowl of crisps and nuts before climbing in herself and showing me her pussy yet again. I don't know how but my cock got harder.

"Sorry if I embarrassed you bro."

"When?" I asked.

"Just now as I looked at your stiff cock."

Her use of the word cock, which I'd never heard her say, as well as it being stiff made my cock twitch and start to tingle.

"You didn't. If anyone it should be me apologizing."

"Whatever for?" she asked. "Because my body gave you a stiffy?"

"Yes," I replied meekly.

"Don't be silly bro. Seriously. You're male and I'm naked."

"I know but it shouldn't have gotten so stiff. You're my sister."

"Well me giving you a good view of my pussy probably didn't help."

"Well it helped the stiffy but not the embarrassment," I said with a smile.

"Sorry John. I'll try not to do it again."

Nooooo my brain screamed. No more pussy glimpses? Not good. Rescue the situation. Give over brain; this is my sister we're thinking about. Brothers don't get a glimpse of their sister's pussy never mind a close-up of it straight into their face.

"Would it be easier if I stayed modest?" she continued.

"Gwen, we chatted about this and I told you then that your nudity didn't bother me. You can stay naked all day if you wish. It really doesn't bother me."

"Then what is bothering you?"

"My erection. You're my sister. I shouldn't be getting erections. It's not right."

"My dear brother, your erection pleased me and before you ask why, I'll tell you. I'm not body beautiful. Wide hips and relatively smallish boobs. Certainly not a glamour model. So the fact that I can get my brother's cock stiff is nice. If you know what I mean."

Once again her mention of cock and stiff helped maintain the erection.

"I know what you mean and your body is beautiful. Real guys don't want fake boobs and porn type girls. They prefer real bodies. It'll just take a while to get used to it. You girls can mask your arousal better than us boys. So it gets embarrassing when our bodies betray us."

She smiled, "I can understand that. Surely stiff nipples and plumper pussy lips betray us too?"

"Stiff nipples can also be a sign of them being cold and unless you bend over who's going to see plumper lips?"

"True," she acknowledged.

Thankfully our usual comfortable silence ensued, as we sipped our beers and had some nibbles.

"OK, so, so long as I don't do this," she said standing up and jiggling her boobs with her hands before squeezing her nipples between her thumbs and forefingers and pulling to stretch her boobs.

"Or this," as she turned away from me, spread her legs and leaned right over to look at me between her legs, thus showing off her wonderful plump and slightly open pussy lips.

"Then everything should be OK?" she said before giving a hearty laugh and sitting back down again.

I was gobsmacked. Did she just do that? My cock has never been harder.

"So long as you don't mind me doing this," I said feeling emboldened as I stood up and proudly showed off my very stiff cock and gave it a few quick strokes.

Her eyes opened very wide at the view, but probably no wider than mine had been during her show.

"Did I cause that?" she asked astounded.

"Yes," I said and sat down.

"It seems it was as nice for you as it was for me," she winked.

We both laughed and finished our beers.

"Ready for another?" I asked.

"Yes please. Want me to go?"

"It's OK I'll go. No need to hide my stiffies anymore."

"True, but think of the view you'll be missing," she winked.

"You can admire the view this time and I'll enjoy the next time."

"Deal," she giggled.

I climbed out. My cock was still stiff and wiggled in front of me as I walked. I half expected a comment but none was made. When I came back out with the beers it was semi-stiff.

"I see you've lost interest already," she said with fake indignation.

"It's the cold."

"Then get back in quick," she laughed.

Once settled she asked if it had warmed up yet. I was baffled for a second as to what she meant. Then realizing, I sat my beer down, pushed my body out of the water to display my slightly larger cock. To my surprise she reached over, petted it and made mock soothing noises that a parent might make when comforting an upset child.

Needless to say it twitched and started growing. Slightly shocked she quickly pulled her hand away and squealed.

I sat back down and laughed heartily at her reaction.

We got lost again in our own thoughts. Was she having the same thoughts as I was? What had just happened this evening? Have we become exhibitionists? She played openly with her boobs and deliberately displayed her aroused pussy. I, on the other hand, had shown off my erect cock and wantonly stroked it in front of her. Where were we going with this behaviour? I looked across at Gwen. She was relaxed and her eyes were closed. What was she thinking? I followed her lead, laid my head back and closed my eyes.

I must have dozed off as Gwen broke the silence later.

"Ready for another beer bro? It's my turn to fetch."

"Yes please," I said and stayed as I was.

"I know you said you'd get used to it, but I didn't think it would be this soon," she said.

I opened my eyes and sat up looking puzzled.

"You were going to miss the show," she said as she stood up, stepped out and sashayed in to get the beer.

It was still a view worth seeing, as was the return view of her swaying breasts. However, her getting back in was the best view as yet again she displayed her glorious pussy.

"Thank you," I said.

"You're welcome bro."

We didn't talk much for the remainder of the evening. Just general chit chat about nothing in particular. It was the type of chatting that close friends do and when the beers and nibbles were done, we called it a night. I put the cover on and checked everything was ready for tomorrow while Gwen cleared the cans and dishes away.

One back inside Gwen offered to make coffee. We went to our rooms to get dried then sat, still naked and continued to chat. Gwen sat sideways on the sofa with her legs partly folded under her giving me a great view of her pussy. I could feel my cock rising and to my surprise I made no attempt to hide it.

"Wonder what you're thinking?" asked Gwen with a nod towards my erection.

I wasn't fully stiff but enough to lift it.

"It's what I can see rather than what I'm thinking," I replied pointing to her pussy.

She looked down and then realized she was on show.

"Oops," she said giggling. "I didn't realize the box was on display. Just as well it wasn't open," she continued with an exaggerated wink.

We both laughed.

"You're not complaining, are you bro?"

"Most certainly not as I'm sure you weren't complaining either."

"Good and no I certainly wasn't."

Then before I'd thought it through I said, "Does the box open often?"

To my surprise she put her hands on her pussy and pulled the lips apart. It was bright pink and glistening but not wet. Maybe slightly aroused?

"Not tonight anyway," she replied letting go and looking back at me.

My cock decided at that moment to twitch. She laughed.

"Someone enjoyed that."

"He did," I replied.

"Happy to be of service," she said mockingly.

"Think I'll call it a night sis. Sleep well and see you in the morning."

"Night John."

I got up; Gwen eyed my swaying semi-erect cock as I headed to my room. I couldn't wait to get there. Once in my room I quickly gripped my cock and started to pump slowly. I relived the events of the evening; her bending over and putting her pussy on display. Then standing up and openly playing with her tits. I could feel my cock getting harder and the tell-tale tingles of an impending orgasm starting to build. Then the acknowledgement of our exhibitionist display getting us aroused and by the time I got to her pulling her pussy lips apart I was shooting my jizz and breathing quite heavily. My heart was hammering in my chest and I could hear the blood pumping in my ears. Wow! My strongest sister-induced orgasm so far. I had to wait until I stopped shaking before I could tidy up the mess I'd made. There was no difficulty getting to sleep.

The next morning was a late start. I'd nothing planned and Gwen and I had tentatively arranged a session in the hot-tub and after what happened yesterday I was certainly looking forward to it. Climbing out of bed I put on a t-shirt and shorts before going to make breakfast. Gwen was already there dressed in a skimpy camisole and a pair of her high legged knickers.

"Morning sis."

"Morning bro, sleep well?"

"Yes thanks and you?"

"Me too."

"Good. We'd sort of planned a hot-tub later, is that still on?"

"After last night I was wondering if we were going to or not."

"I'm still game if you are," I said.

"Me too," she said smiling before getting up and going to her room.

I finished my breakfast before heading for a shower and thinking what I would do until our hot-tub session. Unfortunately the boring challenges of real-life kicked in. I tidied my room and sorted and did the laundry before setting about cleaning the kitchen.

"Why didn't you call me to help you?" said Gwen.

"It's not a big deal sis. Gives me something to do is all."

"Right then, I'll sort the living-room," she said as she collected the vacuum cleaner and a duster.

It was after 5pm before I'd finished with the kitchen. I put the kettle on for coffee before going into the living-room. Gwen had her back to me and was busy vacuuming. Her ass cheeks jiggled beneath her tight fitting panties. A beautiful sight. She turned sideways and her swaying boobs now had my full attention. I could feel my cock stirring. Looking up she saw me and jumped.

"You scared me," she said laughing. "Enjoying the view perv?"

"Sorry. Yes and I'm making coffee. Want some?" I said smiling.

"Yes please. I'm almost done. Maybe you'd prefer a naked maid?" she continued waggling her eye-brows.

"Now that would be interesting," I said with a wink.

The coffee and a plate of biscuits were on the table when she had finished.

"Thanks bro, I certainly need this."

"My pleasure, the least I can do for cleaning duties."

"Think I'll have a quick shower before getting into the tub."

As she walked away I stole another glance at her ass.

"Hope you're not eyeing up my ass," she said without turning round.

"As if I would do such a thing," I replied with fake indignation. Seems my sister knew me only too well.

I went out and checked the hot-tub as usual, went back in and cleared the table before going and getting ready myself. Shortly after returning to the kitchen to make more coffee Gwen arrived wearing her robe. As she tied up her hair her robe slipped open revealing her cleavage and her trimmed pubes and although it was no longer awkward looking at her, my cock twitched its appreciation of the view.

"More coffee?" I offered.

"Yes please," she said as she sat at the table.

I sat the coffee in front of her, she made no effort to close her robe and as she stretched for the milk it opened further and her left boob was completely exposed.

"Tease," I chided mockingly.

She laughed, made no attempt to cover up and put milk into her mug before taking a satisfying drink.

"Oh I needed that," she said. "Thanks bro."

"You're welcome."

Once the water was ready we settled ourselves in the tub and relaxed quietly.

"Do you mind if I put the jets on?" asked Gwen.

"Not at all," I said, hoping it would lead to her masturbating on the jet.

I pretended to close my eyes waiting to see what Gwen would do. She lay back and closed her eyes.

"Was she just going to go for it regardless of whether or not I knew," I wondered. "Would she be bold or brave enough? Things had certainly changed a lot over the past few weeks. Where could things possibly go now?"

"Well hello there," said an unexpected voice.

We both sat bolt upright.

"Mom," we both chorused. "Where did you come from?"

"Well, well. What do we have here?" asked mom.

"Topless hot-tubbing!"

"We can explain mom," said Gwen.

"What's there to explain?" replied mom. "Two consenting adults enjoying a hot -tub."

I don't know what made me do it but, I turned the jets off and as the water settled.

"Naked tubbing!" said mom with a giggle and before Gwen or I could say anything. "May I join you?" she continued.

I don't know who was more shocked; me or Gwen.

"Well," said mom when we didn't respond.

"Yes," I stammered. "If you'd like."

"Of course I'd like," she said with a smile.

"I'll get you a robe mom and you can change in my room," said Gwen.