Susan closed her eyes, clenched her teeth, and clenched her ass cheeks.
Alan raised his hand up high and then brought it down onto her ass.
There was a loud "whap". But, in fact, he didn't really hit her that hard. He still had a hard time doing anything that seemed like hurting his mother, so he eased up at the last second, and without really intending to.
But Susan reacted just as if he'd swatted her as hard as he could. For her, the actual physical act was a smaller factor than the mental aspect. The fact that her son was giving her a real spanking was such a thrill that she was nearly delirious with lust. As soon as she felt the impact, she cried out, "Number one! Thank you, Son, for punishing your naughty mommy!"
She followed that with some husky, erotic moaning. Already, she was struggling hard not to cum. She knew exactly where her son's erection was, and that was too tempting to resist. She reached under her body, found his hot pole, and sighed blissfully as she resumed jacking him off.
Right as she did that, he went back to fingering on and around her pussy. He said, "Good job, Mom. But hang on a second. I've gotta check your pussy again before we continue."
That made her moan and "mmmm" even more. She reflexively clenched her ass cheeks again.
But he said, "Sorry, Mom. You can't clench like that. I can't check you properly if you do. In fact, no clenching at all during the spanking, and that's an order. If you do, I'm going to have to add more swats before I'm done."
She whimpered, "But I can't help myself! It's a natural reaction!"
"Well, try. Or we might not be done here for a very long time."
She tried hard, and mostly succeeded. But she felt the need to do something, and since she couldn't clench, she found herself squirming and writhing in place a great deal instead.
He didn't try to stop that since he didn't see any harm in it, and he found her movements very sexy.
She went back to praying in an attempt to distract herself from her son's pussy checking. But instead of standard, memorized prayers, she made up her own. Dear Lord, please, PLEASE! Please, help my pussy not gush so freely, so Tiger can finish his check fast! I feel like cumming so very much, and I can't cum at all! I must obey my studly boy. Please! Please! Help me not cum without permission! I don't want to be punished even more! It's unseemly! He's my son, but he's the man of the house now too, and he has total control over me! I'm just his big-titted mommy plaything, and I can't tell him no! Lord, please! Everything is so sexy! Too sexy! Too hot! Make it less hot, somehow! I'm begging you!
Her prayers continued in that vein. In fact, they were less prayers and more just her erotic stream of consciousness thoughts, with the occasional appeal for God's help thrown in. They didn't help her calm down much, if at all.
Then Alan announced, "Okay, here comes swat number two!"
Susan clenched her ass cheeks unthinkingly. She still held his cock in her hand, but she stopped stroking it as her entire body braced for impact.
He waited. "Nope. What did I say about ass clenching?"
"UGH! I can't help it! I'm too horny!"
"Try."
She tried. She managed not to clench, but her ass was wiggling and writhing so much that it was a moving target.
Her fingers were sliding wildly all over his boner, obviously with very little conscious control on her part. It occurred to him that when he swatted her again, she was likely to squeeze his shaft painfully hard, just as she tended to clench up elsewhere. So he said, "Hang on. Mom, you gotta let go of my dick. I just remembered that part of the spanking tradition is that you need to pin your hands behind your back, just like they're handcuffed there."
"Oh." She was disappointed to let go of his erection, but the idea of having her hands behind her back like that was thrilling in its own way too. She loved feeling totally helpless and in his power. So she brought her hands behind her back as requested.
He announced, "Okay, get ready..."
A few seconds later, he raised his hand up high and swung it down. He slapped her other ass cheek this time.
Susan grunted. Then she cried out, "Number TWO! Thank you, Son, for punishing your naughty mommy!"
A strange voice said, "Brother, you call that a spank? Weak!"
it was only a strange voice for a few startling seconds, because both Alan and Susan quickly recognized the voice as Katherine's. Alan had the benefit of being able to easily look towards his door and see her standing there, smiling and waving at him. She was wearing a blouse that she'd just put on in her room, but she'd left it completely open in front, exposing most of her ample charms.
Susan couldn't see towards the door without twisting her body uncomfortably, but she considered that a small blessing, because she didn't want to look. She shut her eyes tight, and her cheeks turned red. "Angel?! What are you doing here?! Please! Don't look!" She let go of her son's erection and tried to cover her ass cheeks with both hands, as if that would help preserved her modesty at all.
Katherine said, "Mom, how could I NOT look? My room is right across the hall, you know. When I hear all kinds of spanking and shouting sounds, how can I not check to see what's happening?"
However, Katherine's statement was intentionally misleading. She'd actually been downstairs doing naughty things with Suzanne, which she didn't want to admit to her mother. At least it was true that she'd heard the sounds, since Susan's screams had carried that far.
Susan clenched her ass cheeks even more, as her entire body tensed up. "Okay, I can understand that. But now you know, so you can go. It's just a spanking, thank you very much!"
Katherine responded, "Just a spanking? I beg to differ! How often does one get to see a son spank his own mother?! Not very often, that's for sure. Although, I imagine that from now on we'll be seeing it a lot. Isn't that right, Bro?"
Alan certainly didn't mind the intrusion. He knew that Katherine's presence would humiliate Susan further, which in turn would arouse her even more. Besides, it was fun to talk to someone else, especially a gorgeous, naked sister. "Sure thing, Sis. From now on, any time Mom is bad, she's going to wind up with a cherry red ass and probably a mouth full of cum. Although, Sis, I should warn you that the same thing applies to you."
Susan nearly passed out because she found those words so arousing. She particularly loved the phrase that she was "going to wind up with a cherry-red ass and a mouth full of cum." (She immediately forgot about the "probably.") Her ass humped up and down in a desperate effort to delay her impending orgasm.
Katherine replied, "I know, Bro, I know. And I certainly don't have a problem with it, because that's your right! We're your obedient fuck toys, after all. We're all about dropping to our knees to suck and serve, and if we fail to please, then we get spanked! Hard! Isn't that right, Mom?"
Susan merely grunted in the affirmative. "UNH!" She thought, Shut up, Angel! Please! If you say anything more, I'm going to cum! I'm so close! I'm dying! UGH! But I can't! I can't!
In fact, Katherine had been watching the spanking from the very beginning without being noticed. She'd even taken a few photographs, figuring it was a moment they would all want recorded for posterity. So she knew exactly what was going on. But she pretended to be clueless when she nodded at the way Alan was diddling with Susan's clit, so she asked, "Why are you touching Mom in her naughty spot like that? Isn't that forbidden?"
Susan gasped out, "It IS! Please, Angel! Get him to stop! I'm... I can't... Gonna cum!" After an initial coherent outburst, she was unable to express herself because she was that horny. She wanted to say that she needed Katherine to enforce the rules since she found herself helpless to do so. But instead she ended up moaning and "mmmm"-ing quite loudly.
Alan managed to continue to diddle with her clit, as well as her slit, despite her constant writhing and gyrating. He looked up at his sister and said serenely, "Normally, that WOULD be forbidden, but there's a special spanking exception. You see, I need to check to make sure she's not too wet. Obviously, she's supposed to be punished, not aroused."
Katherine smirked knowingly as she said, "Obviously." She understood full well that this was an erotic spanking, and the punishment was only a thin pretense.
He brought a hand back to her breasts, which he'd been neglecting for a while. "And sometimes I have to hold her here or she might slip off my lap."
Katherine had a hard time not laughing at that. "That seems reasonable."
He pretended to be upset. "The problem is, I must be doing something wrong, because she's getting wetter and wetter." He pulled his hand from her crotch and held it up. "Here. Come look. See how wet my fingers are?"
Katherine eagerly pounced on the invitation to come closer. She walked right up to the edge of the bed and glanced at his hand. "Hmmm. Indeed." She was tickled pink, and couldn't stop smiling.
Susan brought her legs together and tried to cover her pussy and ass crack with her hands as best she could. "Don't look! Please! Don't look!"
Needless to say, Katherine was looking. "Mom's been a bad mommy, hasn't she?"
"She has," Alan replied.
Susan wailed, "Oh, God! This is totally humiliating!"
She thought, This is like my every dream come true, but my nightmares are coming true too! Even though I'm losing their respect and authority, it's SO HOT! I'm so horny that I fear I'm going to literally lose my mind! Tiger is playing endlessly with my HOT CUNT! And Angel is standing right there watching!
Alan felt he had a good sense for just how much humiliation would make Susan hotter than an inferno, and how much was too much and would make her miserable. He sensed that Katherine's presence and comments was taking Susan to that tipping point. The spanking was mind-blowing enough to begin with, and he sensed his mother was extremely close to cumming, which she wouldn't want to do with her daughter there too.
So, knowing that Susan couldn't see his face, he nodded at Katherine and then nodded at the door. Mostly with his facial expressions, he was able to convey that he was worried about pushing Susan too hard.
Katherine was disappointed, but she got the message.
Once he saw that his sister understood, he spoke out loud, for Susan's sake. "Sis, sorry, but you should probably go. This is kind of a private thing between me and Mom, at least this time around."
Susan sighed heavily with relief. THANK YOU, LORD! Miracles can come true! Now, if I can just somehow not cum! Or at least hold out until Angel leaves the room! I'm not going to last much longer in any case!
Katherine nodded. Then, realizing Susan couldn't see that, she said, "Okay. No problem. But it's good that I saw this much, because, Mom, remember that I still owe you a spanking too, from what you did this afternoon. Remember? I'm definitely learning from what I see here. But we'll have to wait until tomorrow for that. Okay, see you guys later!" She walked to the door.
Susan's eyes had been shut tight, but they opened and bugged out wide when she heard Katherine say that she was going to get another spanking tomorrow. That was very nearly the last straw. OH NO! BOTH my children are going to spank me from now on?! Lord, have mercy! Pleeeeassse!
Alan had been "checking" her pussy all the while, with a particular emphasis on checking her clitoris. She felt she was hanging onto the very edge of a cliff, like a character in a Bugs Bunny styled cartoon, and her last hand-hold was slowly and inexorably slipping away.
She waited a few desperate seconds until she heard Katherine close the door. Then she shouted out, "Son, please! Permission to cum!"
Alan realized that he'd badly misjudged her arousal level. His plan had been to keep her near the cusp of orgasm for the entire spanking, and then he'd give her permission to cum at the end. But he'd gotten too excited and "checked" her pussy far too much. After just two swats, she had clearly gone beyond the point of no return, so he had mercy and said as he gave her nipple a hard pinch, "Permission granted!"
Susan let out a long, incoherent wail as her resistance collapsed and she came hard. In fact, she screamed like a furious berserker Viking warrior, her orgasmic cries echoing through the entire house. Her ass bounced up and down off the bed, and her legs and arms thrashed around uncontrollably.
Alan had to withdraw his hands from her slit and her boobs, due to how she was moving so much. Since she was still improbably wearing her high heels, he had to be particularly careful about her flailing legs. He used his hands to try to keep her from falling off his lap.
But, after about a minute, her multiple orgasm started to peter out, and her wiggling and writhing subsided too. Unexpectedly, he plunged two fingers into her burning hot slit.
Her eyes opened and bugged out, exactly like before. Her jaw dropped in near comic fashion too, because that took her by complete surprise. Another epic orgasm hit her, like a punch to the gut. She screamed and screamed, and tears poured down her cheeks. They weren't tears of joy or sorrow, but instead were a sign of her total emotional and physical overload.
When her orgasm ended after another minute or so, he decided to have mercy on her and just let her be for a while. She didn't quite pass out, but she was so out of it that she was effectively a dead weight on him. It took a minute or two before he managed to extricate his legs from under her. He got off the bed, stood up, and looked back down at her resting form. I've never seen anything so beautiful. Mom is totally orgasmed out!
The spanking ended in a strange way for him. Not only did he not cum himself, he didn't even come close. In fact, his penis quickly went flaccid once he was off the bed. In fact, he hadn't felt much direct stimulation at all, at least by his recent standards. Susan did jack him off some of the time, but she was so distracted that it was a far cry from her usual talented motions. But he didn't mind. This spanking was for his mother. And even though there was precious little actual spanking in it, he knew it had served its symbolic purpose. Plus, it had left her about as sexually satiated as she could possibly be.
As he stared at her gorgeous nude body, he thought, Good! I'm glad I didn't cum, or even get close. It's about damn time for some payback. Mom helps me out so much, every single day. She deserves more huge orgasms like that. And what's nice is that I didn't have a problem spanking her. The truth is, I adore seeing her cum like that! God, it's a thing of beauty! I made her like that. ME! Phew!
He left the room and quietly closed the door behind him. He decided to take a shower to revitalize himself. Then he figured he'd stop by Katherine's room to chat with her, and maybe check to see if Suzanne was still downstairs after that. He wasn't looking for any sexual help. Although he hadn't climaxed himself, he did earlier thanks to Susan's prolonged blowjob, and he felt sexually satiated from the spanking too.
He turned the light out as he left his room. He figured that if Susan wasn't asleep already she would be soon, and she would want to nap for a little while.