The stimulation isn’t working

Anna was pacing Billy’s room, the nub of her pen placed thoughtfully against her lips. Her lab coat swooshed with each step of her legs, the clean fabric swaying in a way that felt funny on her mostly-bare skin. She was, of course, wearing nothing but her underwear beneath the open lab coat.

Something was bugging the intelligent young woman. So she paced in small circles, thinking, and trying to solve this hitch in the experiment.

“Hmmm… This isn’t working. You should’ve started forming the link by now…”

Anna spoke her mind to Billy’s fallen body, lying tucked under his own bedsheets. As much as she had enjoyed this experiment so far, and most recently pinning him down in his bed and **** him out with her hand, she had to admit that things weren’t going as quickly as she had expected.

“I had hoped to knock you out with just the sight of me in my underwear, but it isn’t working…” Anna thought out loud.

She stopped pacing and turned, speaking directly to her drooling and **** older brother now. His golden boxing champion belt glinted on the wall above the head of his bed as Anna, disappointed, made her conclusions.

“I think you just see my face too often,” she said, almost pouting. “Your brain already has too many associations with me, aside from being knocked out like a bitch. I’m your little sister, we grew up together. I can’t just overwrite that. What we need…”

Anna turned, and began pacing small circles again, her keen mind working to find a way that she could continue this experiment. It was too much fun to give up so easily. Powered by the memory of how invincible he had once seemed to her, how cocky he was, Anna was eager to see just how feeble she could turn him using her superior intelligence.

“…What we need is someone, or something, that you can associate 100% with being knocked out… Someone you haven’t spent so much time around.”

Anna paused, and thought on this. Billy did seem to be developing some kind of weakness reaction to seeing her bra-covered breasts, but as long as they were attached to her familiar body, he may never be able to form the knockout connection that she wanted…

Unsatisfied, she left him there to sleep off that ****, heading to her room to think of this further. And the experiment halted for three whole days.

During that time, Billy was already starting to recover back towards being his usual self again - of course, his toughness was still compromised, and he would likely require a month or two to get fully back to normal, but for a brief moment it seemed as though everything was going to go back to normal for him. It was a reminder that if he was just left alone for a while, he would end up back on top. He would retake his position as an invincible boxing champion. Nobody would ever be able to knock him out again - let alone some barely-trained nerd.

Anna couldn’t let it happen. She worked fast, and three days later, that thought quickly vanished as Anna solved her little problem. The hope for his recovery was still there, but it would not happen today. Anna wouldn’t let her opportunity slip through her fingers. Not after seeing her “unstoppable” brother slowly fade from that ****, unable to stop her. It felt too good to let it go yet.

Billy was woken up in the middle of the night again - confused to see his little sister sitting on top of him in bed, wearing her lab coat, with one boxing glove on. And this time, she had a new association to knock him out with.

Seeing that he’d come to, Anna smiled, and used her free hand to hold up a photograph for her older brother to see. He blinked, still half-asleep, and not entirely convinced that this wasn’t a strange dream.

In Anna’s hand was a picture of a woman Billy didn’t recognize, wearing a bikini. His eyes were immediately drawn to the large round breasts in the center of the image - whoever this blonde woman was, she might have been even more stacked than Heather. Maybe he really was dreaming.

“Wh-who…?” Billy blinked in confusion.

“This is your new boss.” Anna chortled. “Get a nice, good look at her.”

“I… I… Wha?”

In his groggy state, Billy leaned forward and squinted, obeying Anna without a second thought.

Looking closely at the image, his tired mind worked slowly to take it all in. A cheerful blonde milf, sporting a big smile on a sunny beach. Billy was sure he didn’t recognize her - was she just some random model?

Whoever she was, she was stunning. Her stretched blue bikini revealed lots of cleavage, sideboob, and underboob thanks to her stacked chest. She wore a large white floppy sun hat, held to her head with one hand against the ocean breeze as she smiled at the camera. Her whole expression and demeanor just exuded warmth. Kindness. Safety. “Mom energy”, maybe.

Billy’s mind was ripped from the photo when he felt Anna slowly caress his face with her boxing glove, running the knuckles down from his cheek to his chin. He let out a meek groan, and shuddered beneath her legs. Anna’s experiment aside, those gloves already had quite the association for Billy…

“So~? What do you think~?” Anna asked, smugness radiating from every part of her. Billy’s eyes rolled back over to stare at the photo she was holding up. After thinking for a moment, he finally spoke in a strained voice - like it was hard for him to think.

“Big… Tits…”

“Gooooood~” Anna grinned. That was what she had wanted to hear.

All at once, she pulled the picture away and came in with her other hand - a gloved fist!

WHAMWHAMWHAM!

In an instant, Billy was jackhammered back into his pillow and out cold. He never even had time to question why Anna was sitting on him, or showing him that picture - It was actually shocking how quickly he got knocked out. How fast he went from consciousness to a royal limp loser.

Anna paused for a moment after her third punch connected, holding her gloved fist up and studying his face to see if he needed one more. When she saw that he was obviously fast asleep, she smirked and hopped off of him, tossing aside the boxing glove.

“Hm! Now then, that’s step one. Time for-“

Anna paused when she heard a sudden sound pick up. A gentle buzzing. A rumble. She stopped talking, her ears pricking up with curiosity. What was that sound…?

It was a strange sound. One that Anna didn’t recognize at first. Maybe because she didn’t even consider the true possibility of what the sound was. But then, her heart leapt in her chest as she suddenly figured out exactly what it was. Excitement and joy rushed through her as she whirled around on the spot to confirm - and she was right.

After this last knockout, Billy had begun to snore.

Anna couldn’t help herself. She burst out laughing, covering her mouth with a hand as if to spare her sleeping brother’s feelings. Her excited heartbeat sped up even faster.

“Oh my god! Oh my god… No way…”

But it was true. And it became even more obvious when, as Anna approached him, his mouth fell open limply. Loud, impossible to miss rumbles poured from his open mouth, filling the room with the sweet music of his defeat.

Anna, now at his bedside, gasped with glee. She poked at his hanging-open jaw with a finger. Tapping his chin in disbelief.

“No way… You’re actually fucking snoring… You fucking LOSER!” Anna exclaimed.

This was amazing. This had never happened before. Even after a few days of recovery, the nerdy girl had so thoroughly thrashed her boxer older brother that he was literally out cold and snoring.

Anna’s heart was racing. If ever there was a sign that the experiment was still on, this was it. Thank god for those loaded gloves that had softened his chin up so much in the first place… Now just a punch could make him sleep so deeply that he would actually snore! A nerd fist could put him out COLD! Oh, goodness…

Anna never could have imagined this was possible, if you’d told her before she left for France. That soon enough, she would not only knock her big bad brother out, but that her female fist would actually reduce him to snoring. She couldn’t hold herself back from laughing out loud even more.

“Holy shit… Bahahhaha! You were so tough! So strong! So cocky!” Anna gloated. “What the fuck HAPPENED to you!?! I made you SNORE!”

“Zzzzz…” Billy droned in deep submission. Anna’s jaw just about fell open.

HE was the athlete. HE was the strong one, the tough one. The boxer. She was the goodie two shoes. The first time she had knocked him out had made her heart sing, and seeing this made her feel like it was that first time all over again. Like she was seeing him brought to a new low, one he shouldn’t have ever even scraped. An undefeated boxing prodigy… Put in his place.

What an epic fucking loss. Once again, he had lost to his little sister. The nerdy bookworm took him out. And this time, she did it in style.

“Ohoh my god…” Anna half-laughed, half-moaned. Her hands came to cup her breasts, and she bit her lip. “Oh my god…”

She grew silent, just listening to her older brother snoring. Watching his chest rise… Pause… Then fall. Over and over. A breath out… Followed by the rumble of his deep, snoring breath in. Slow, rhythmic, DEEP snoring. Loud rumbles from his open jaw.

Fuck. Why was that turning her on so much? Her hands squeezed her chest absentmindedly, as she stared at him. Why was this so… So fucking hot?

Anna’s thighs squeezed together, and a breath caught in her throat. The sexually-repressed nerd was feeling on top of the world and horny as hell. Normally, when she felt like this, Anna would rush to her bedroom and fingerbang her clever brain stupid. But today… Today there was an **** champion athlete right in front of her. One she had personally dominated, personally humiliated, personally knocked out… And he was just lying there. Snoring.

“Zzzzzzz…” The pleasing rumble filled her ears. Her thighs pressed together tighter as her hungry pussy pleaded for love.

He was right there. Out like a light. After three days left alone, he was right. Fucking. There. Snoring his little heart out.

Anna chewed her lip. She couldn’t pass this up. Could she?