Arthur awoke rather suddenly and with greater clarity than he usually did on waking. His eyes were open, and the afternoon light was smacking his face. He was lying on his side on the sofa with his naked back pressed into the cushions in Selene and Katerine's apartment. Short, curled, blonde hair was just under his chin, his arms were wrapped around someone soft and pleasant to hold, and her body was pressed against his with his now hard cock wedged down and nestled in the valley between two round ass cheeks that were gently red and warm to the touch. He stirred gently and felt Katerine yawn and press further against him. Her hips pressed her back, pushing his rod further into the valley of her ass. His fingers flexed, groping her breast as they did so, and her nipple instantly hardened against his palm.
"What a pleasant way to nap." Katerine cooed as she nestled against him still more.
"Mmm." Arthur rumbled as he exhaled. Then his eyes snapped wide. "What time is it?"
"Hm?" Kat asked, still waking up. "I don't know. I left my phone over there." She gestured weakly with her arm behind them and the sofa they were lying on to the kitchen table where the remnants of their lunch remained.
Arthur looked around, but there was no clock on the wall or immediately visible display of the time. The only indicator that it was still Saturday was the sunlight coming through the window. He didn't know how long they'd slept, but it didn't seem as though it'd been very long. At least, he hoped it wasn't. When he'd come here for his lunch date with Kat, he'd left her sister, Selene, back in his apartment across the parking lot, drilling her mantra as she edged and denied herself - keeping track of how many times she'd almost cum. He was recording her exercise on his phone, which he'd left there, so he couldn't check it now.
He patted Kat on her hip, which she took as encouragement as she pressed back against him, stroking his cock with her ass cheeks as she clenched them around him.
"Wow." Arthur commented in surprise.
Kat bit her lip and shifted her hips as she stroked him with small strokes. "Are you gonna teach me how to take that monster of yours in my ass?" Kat asked.
"Yes." Arthur admitted immediately. "Though, I wasn't planning on doing it right now."
"Well, duh." Kat chuckled. "But is this nice?"
"Very nice." Arthur admitted. "But..." He hesitated.
"You need to get back to Selene?" Kat asked.
"I at least need to see what time it is." Arthur said with a slight chuckle.
"So, is my evaluation over?" Kat asked as she reluctantly swung her legs forward over the edge of the sofa, sat for a second, and then stood up.
The cool air struck his front as she moved away, making him miss her warm flesh. "Well, anal and actual lovemaking are the only two things I haven't scored you on." Arthur shrugged as he sat up and watched her naked body with all her curves and rose-tinted ass cheeks move away so that he could stand. His dick was as hard as steel, but he stood and looked for his clothes so he could put them back on.
"I can think of a few more things." Kat said with a smirk as she rounded the sofa and headed toward the dining room table so she could check her phone.
"Oh?" Arthur mused as he found his boxers and picked them up off the floor.
"Some physical things, like flexibility, strength, endurance - that kind of thing." Kat explained. "And some pleasure-based things, like... foreplay skills, seduction skills, modeling, dancing, the list goes on. Your evaluation of me so far seems... incomplete." She said with a smirk.
"I guess we'll have to fix that." Arthur smirked as he slid his boxers up his thighs and had to adjust his still-hard cock so that it protruded through the open slit in the front.
"So class is still in session?" Kat asked. Arthur didn't know her well enough to determine if she sounded hopeful, but she didn't sound like she hated the idea.
"See, this is why you need a collar." Arthur scoffed as he picked up his shirt. "Put it on when we start, take it off when we're finished, and no one has to guess. We just have to look at that pretty little throat of yours."
"Hmm." Kat smirked but didn't answer as she looked at her phone. "It's three-twenty-four."
"Oh geez." Arthur sounded more alarmed than anything else as he started moving quickly to try and throw on his clothes.
"What?" Kat asked.
"I uh..." Arthur looked over his shoulder to the front door and frowned. "I left Selene doing an assignment when I came over here. I didn't think I'd be over here this long."
"I don't have any messages from her." Kat thought for a moment. "Is she tied up?"
"No. I never would have left her like that. She's edging herself and keeping count."
Kat bit her lip as she watched Arthur get dressed. She was still naked, standing there with her hip jutted out toward him and her bare feet flat on the kitchen tile. "That must be driving her insane." Kat could hide the smile from her face but not from her tone.
Arthur nodded as he threw on his shirt.
"What are you going to do about Excalibur there?" She asked and pointed to his dick as Arthur tried to stash it into his pants and close them up.
"I'm trying to think of nuns and baseball, but it's not working." He almost laughed. "You're too hot and naked for me to think about anything else or for this to go down any time soon."
"Should I suck you off before you go?" Kat asked with a smirk as she stepped forward, as though she were eager to try. His dick twitched in response, so she assumed that was a yes.
"No." Arthur shook his head as if in direct contradiction to his actual desire. "I-" He hesitated, unsure how Kat might feel about what he was about to say, but said it anyway. "Selene will want to suck it with your juices still on it. She-"
Kat raised her hand as if to concede. "Yeah. She mentioned something like that when we talked about this." Kat shrugged. "She's certainly become a depraved little slut under your guidance. I never knew she was half as kinky as she's turned out to be."
Arthur chuckled a little. "It was a surprise to me too."
"So what should I do?" Kat asked and looked up into his eyes for the first time. "Come with you?"
"You're welcome to." Arthur nodded. "Or we can end our session here for today."
"What should I wear to cross the parking lot?" Kat asked.
"Hm?" Arthur asked as he fastened his belt.
"That was the rule, right?" Kat asked. "You pick what I wear when class is in session?" She gestured to her bedroom. "You want to pick something out for me?"
That reminded him. He was supposed to grab clothes for Selene too. "Got a long t-shirt?"
"Yes." Kat answered. "How long?"
"Put on one that just covers you - and I mean just. I want you in danger of exposure if you take too long a stride." Arthur smirked.
Kat's gaze darkened, and he wasn't sure if she was thinking about the risk or what garment to choose as she stood there and closed her phone. She looked up at him. "Okay." She said after a moment. "And?"
"Nothing else." He shook his head.
"No bra, no panties, no shoes?" Kat asked. "Shorts?"
"Your tallest heels." Arthur answered.
Kat frowned. "You want me to walk across the parking lot and climb three flights of stairs to your apartment in nothing but a pair of heels and a t-shirt that barely covers my ass?"
"That is what I said, isn't it?" Arthur asked as he stepped forward. Closing the distance made her tilt her head back to keep his gaze, and he towered over her. He was more than a foot taller than she was and much stronger built. She was tiny by comparison, but feeling small with him was still a new sensation to her, and he wasn't sure if she'd like it.
"Yes, sir." Kat said after a moment, but she didn't look down or away from his face. "That is what you said. I'm just not sure I want to. What if I want to come back here?"
"Bring a change of clothes with you. Whatever you want to wear when the session is over." Arthur shrugged.
Kat frowned. "Can't I just go in my normal clothes?"
"If you want to disobey me." Arthur shrugged. "Sure."
She narrowed her eyes as she watched him for a moment. "And disobeying you means I have to take a punishment or something, right?"
"Right." Arthur confirmed with a nod.
"Like a spanking." Kat suggested. She rubbed her pink rose-colored ass gently with one hand.
"Or edging, or maybe something truly detestable." Arthur shrugged.
"Truly detestable?" Kat asked.
"Fuck around and find out." Arthur challenged her.
She held his gaze for a moment but finally looked down to the floor and swallowed.
"Are you going to go get dressed in what I told you to wear?"
Kat nodded silently, blushing as she did so, and did not raise her eyes to him as he raised his arm and pointed toward her bedroom. She took his meaning, though, and stepped away and into it. He then headed into the bathroom, relieved himself, flushed, washed, and stepped into Selene's bedroom. He picked out an old Metallica t-shirt that he knew came to roughly the same height as Kat's would on Selene, wrapped a pair of her heels in the t-shirt, and stepped out.
Kat was waiting for him with her phone in her hand. She'd chosen a pair of high-heeled white shoes that strapped her ankles four inches higher than usual. They pushed her ass up and toned her legs that came out from under what must have been a man's white under-shirt. It was a v-neck of nearly translucent white, with the hem coming so near her pussy that he could see the flare of her hips starting below it. It wasn't tight on her, but it hugged her at the hips and breasts to show off her figure like nothing she typically wore ever did.
She watched as his eyes traveled from the floor, up her legs, and across her torso until they met her eyes. His smile caused her to smile, and she chuckled. "Yeah, yeah." She waved him off. "Come on. I want to go watch you fuck my sister."
She watched as the bulge in the front of his pants twitched in response and nearly bent over from laughing. The slight hinging at her hips brought the back of the t-shirt up over her ass cheeks, and she immediately righted herself and tugged it down with a frown.
"You sure I can't wear any shorts?" She whined.
"No shorts." Arthur shook his head.
"Bra?" She asked and rubbed her nipples through the t-shirt with her hands as if to tease herself. "You can see my nips right through this thing."
"No, you can't." Arthur assured her. "Just the barest hint of their outline if I stare. You won't be seen in it for too long, if at all, and I'll be right there with you the whole time."
Kat frowned and pouted.
"Consider this your obedience evaluation." He smirked.
She grunted but finally fell into line by the door after fixing her curls. She held a small bag in front of her with her change of clothes. "Can I say the session is over and start it up again when we get to your place?"
Arthur sighed and turned to face her. "If the session is over, then it's over, and you can stay here." He assured her. "If you want to come with me and probably get fucked at least once more before I leave for my parent's house, or if you want to watch me punish, then fuck, Selene - now is your chance."
Kat bit her lip in contemplation.
"But if you can't do it-"
She cut Arthur off with a sudden glare of defiance and stomped toward the door, ruffled the t-shirt, and hiked it up just enough of a mark that she had to tug it back down again. She opened the door and stepped through it onto the landing. He followed after her after briefly adjusting his bulge.
"Hand me your bag." He said after she locked the door behind them.
"Not happening." Kat hugged it in front of her.
Arthur held his hand out for it and returned her defiant glare with a patient gaze of his own. "If you hug that in front of you the whole time, you won't be able to tug your shirt down when it rides up. So if you don't want your spanked red ass on display to the whole apartment complex, you'll let me carry your bag. Though, maybe you want your ass on display? It's a great ass. Maybe people would appreciate seeing it and seeing how wet you are right now between the legs at the thought of being on display?" Arthur's voice was quiet as he spoke but firm, and he was guessing whether Kat would respond positively to such an idea. In the end, though, she pushed the bag into his arms and pulled the t-shirt down as best she could.
Arthur smirked in triumph and nodded toward the door. "After you."
She glared at him again but obeyed. She kept her stride short so as not to let the shirt ride up, and she only took her hand off the hem to open the door, which she did not hold for Arthur. He followed her into the parking lot and immediately mimicked her, looking around to see if anyone was there.
No one appeared to be outside, except for an older middle-aged lady throwing her garbage away at the dumpster. If she saw them well enough to make out what Kat was wearing or what Arthur could see in shades of diminished red and pink beneath it, she made no comment as she returned to her own building. The trek across the parking lot was quick, and although the strides were short, Kat walked briskly, even after they were through the door and into the stairwell of Arthur's apartment building.
He watched as she tried, but failed, to pull the t-shirt down to teasingly block his view as she ascended the stairs. He waited to follow until he had a good view of the underside of her ass and her pussy. It was slicker than he thought it might be, and he could see the sheen of arousal inside her thighs as she turned at the landing.
She didn't wait for him but tried the door as soon as they reached his apartment, only to find it locked. She grunted in frustration, but it opened as Arthur started to slowly fish his keys out from his pocket in the most slow-motion fashion possible without causing her to smack him for it. The door seemed to open automatically. No one appeared to be on the other side of the door, but entering the apartment, it closed behind them and revealed Selene.
She was a naked, sweaty, panting mess with her hair a frazzled braid and her legs shaking as she took an unsteady step forward. The dull buzz of the vibrator between her legs was pitched high in frequency, and she was panting as she fell back to her knees. "Oh, thank god!" She gasped. "Master, can I cum? Please, Master, may I cum?"
"Not yet." Arthur said sternly as he set their things down on the sofa and turned to face her. He reached down between her legs and turned off the vibrator. She clung to his arm as he did it and wouldn't let go.
"Please, Master!" Selene cried as she clawed his arm. "I'm your good slut! Please let me cum!"
"I said, not yet." Arthur said sternly, but he stepped back momentarily when he heard her sob.
He looked at her face to see she'd been crying already; her makeup was smeared. She was a general mess, and much more so than he expected. He shifted to hold her with one arm while she clung to his other. She tried to grind her pelvis into the floor as she sank to it and pulled him down as she cried.
"Woah." Arthur said softly. "It's okay. You're okay. I'm here. You're okay." He repeated as Selene let out a shaky breathy moan and sniffed. He looked at Kat. "Tissues, bathroom." Kat stepped away and was back in a moment with a box of tissues. She offered them to Arthur, Arthur offered them to Selene, and Selene blew her nose and wiped at her face as she tried to calm her breathing.
They were silent a moment as Selene seemed to pull herself together. Arthur glanced to the coffee table. The open notebook was still there, an uncapped pen next to it, and italic strokes on the page in bunches of five marked out how many times she'd come close to the edge and pulled herself back. Thirty-seven. She'd been nearly cumming every few minutes since he'd left, and it had taken its toll on her. Her collar was still on, she hadn't stopped or used any of her safe words, and she was shaking with the toll of it on her body, still desperate. She was more desperate to cum than ever, and the living room smelled of her need.
He checked the phone and ended the recording. There were more than three hours of video as his phone loaded, and his memory was nearly gone. He pulled it up in his gallery and skipped through it, checking. She'd really done it. She'd kept moving through the poses as she recited her slave mantra, over and over, only stopping to make a mark when she turned off the vibrator and went through her poses again. It was three hours of exercise. She was exhausted and pushed way farther than he meant to make her go.
"Oh, Selene." He looked to her, then to Kat. "Water. And food. There's some bread in the kitchen." Kat obeyed. Arthur scooped Selene into his arms and carried her to the couch. He held her, curled up in his arms with her head on his shoulder, and sat down with her in his lap as she calmed.
"You should have stopped." Arthur sighed.
"Now you tell me." Selene scoffed, but it was weak. She felt helpless, even as she pressed against him and clung to him as though he were the only real thing in the apartment and she was a dream.
"Selene... I'm so sorry." Arthur said gently. "Here, drink this." He said. He'd taken the drink from Kat as she offered him a glass of water and brought it to Selene's lips. She didn't take the glass from him, but she drank the water as he gently tipped it back and poured it slowly into her.
"It's not so bad." Selene said gently. "I hit a rhythm after a while, and I slowed by staying in one position or another when I needed to. It's not as if I've run a marathon."
"It looks bad to me, and I have run marathons." Arthur scoffed.
Selene's weak smile made him regret his mirth.
"I feel like an ass." Arthur shook his head. "I'm sorry, Selene."
Kat was quiet. "It was my fault." She said to break the silence. "I'm sorry, Selene. I made him stay with me, and we fell asleep on the sofa."
Selene seemed to recognize that Kat was there for the first time as she looked around at her voice. It took her a moment to realize what Kat was wearing, or more accurately, what she wasn't, and Selene smiled brightly. "You went through with it then? You fucked?" She asked.
Arthur couldn't help the laugh that got past his lips, but it was just the one. "We fucked." He confirmed.
"And?" Selene asked as she looked at her sister.
"And it was great." Kat confessed. Arthur blushed a little, but Kat didn't acknowledge it as she continued. "It was like you said. I get it. We did some spanking, some sucking and fucking, not necessarily in that order, we fell asleep, and then we came here as soon as we woke up." She knelt by the sofa as she talked, just off to the side of Arthur's legs as he held Selene curled up in his lap as though he were cradling her.
Selene smiled. "Told you."
"Yes, you did." Kat shook her head. "He's great. Even if he is a bit of an ass for letting you do this to yourself."
"I could have stopped, I guess." Selene said defensively. "I mean, I knew I could. I just didn't want to. It felt great, and I wanted to impress you. I wanted to make you proud of me." She said as she turned to look up into Arthur's worried face. She stroked his face as if to smooth away the worried wrinkles in his expression with her smooth hand, fingers nearly wrinkled with her own juices.
Arthur took a deep breath and hugged her in his arms. She cooed as she closed her eyes and squeezed herself against him.
"Rest." Arthur commanded as her hand slid along his thigh.
"Master..." Selene protested. "Please. I need to cum. I-" She squeezed his thigh harder than he thought possible. "NEED it."
"You need to drink that glass of water. You need to eat and regain your strength. Nap, even." He suggested.