The punch was already thrown

“Anna…?”

“Eep!”

Anna didn’t have long to contemplate what Billy may do to her now that he was awake. She had already let the first punch of the night fly just before he’d startled her, and just that instant, the punch connected. Her balled fist knocked Billy’s head to one side with a dull THUD.

“Unf!” Billy grunted, his head rolling to the left.

Anna’s eyes shot open as she saw her opportunity. Not wasting a second, she let the next punch fly with her other hand, knocking Billy’s head to the other side as her fearful heart hammered in her chest.

“Ugg!”

WHAM

WHAM

“G-Go to sleep! Go to sleep! Go to sleep!”

Sitting on his chest in that same nightly pinning position, Anna threw punch after punch in a **** combo. He needed to go out, now. Before he could figure out a way to fight back, or call out for mom.

“Ugh! Anna! Stop!” the confused champion boxer grunted, trying to lift himself up but falling back into bed under Anna’s weight as another punch clipped him on the chin.

Pressing her advantage, Anna leaned forward and quickened her ****. Blow after blow rained down on him, knocking his head to either side as he struggled and wiggled beneath her legs. Spittle flew from his lips as his younger sister attempted to punch the fight out of him. To make him go night-night.

“A-Anna!” Billy protested, already feeling groggy as he endured blow after blow to his chin. He struggled to break free, to no avail. His head was spinning. This fucking nerd was about to make him…

“Go to sleep! Go to sleep!” the words rushed from Anna’s mouth as she desperately pounded Billy back, and forth, and back, and forth, not letting up until…

WHAM!

“Uuuhhhh…” a groaning sigh escaped Billy’s lips, and his eyes flickered closed once again.

The final shot had landed with more **** than usual, probably due to the adrenaline rushing through Anna’s body - and apparently, it was a good enough shot to get Billy out cold. As he went out, his body slowly relaxed and sank limply back into the bed, motionless and quiet.

Anna froze, the next punch already cocked above her shoulder, as she watched Billy slowly sink into sleep. His steady breathing began after one final airy sigh of defeat, and his eyes softly closed. He’d been knocked out. A thin line of drool began to flow out from between the champion’s lips.

Just to be safe, Anna let one last punch fly. It connected hard and knocked his limp head to the other side, but besides that, he didn’t react. Didn’t even grunt. He just kept breathing softly and steadily, in undisturbed sleep. Out like a light. She straightened his head and lifted an eyelid to confirm what she already knew.

That was a close one, but she’d knocked him out just in time. He probably didn’t even manage to wake up their mom with his little grunts, let alone give her reason to come and investigate.

Thank goodness she was able to put this whole mess to bed before Billy could fight back, too. Even if she’d already KO’d him a few times before, and several times if you counted her nightly escapades, he was still a strong athlete and a skilled boxer. A champion, even. Taking him down before he could try get back at her was great.

…

Fuck, she really loved that.

Anna bit her lip, and silently let her hands slip between her spread legs as she sat on top of her sleeping brother, pinning him in bed as usual. Fuck. Ooh, fuck. He was out cold. Even though she’d done it before, something about him being awake and confused this time just made it so much better. She liked it so much.

She… Wanted more. She needed more.

And so, after that, Anna began a new nightly routine. One where she started waking him up each night, after getting into position on top of him, and right before pummelling him back under with her small female fists. He would wake up, confused, and then struggle after the first shot landed. All the way up until, finally, his struggling stopped again. Doing it like this was so much better. Holy shit, it was SO much better.

The best part was, Billy still didn’t even know. Whether he chalked it all up as a series of dreams, was never awake long enough to remember it at all, or if the knockouts themselves were removing the memories, Anna wasn’t certain. But every morning, he would wake up groggy and sore and clueless. And every night, he would look up at her with that same confused expression as she woke him up, just to put him back to sleep again.

Fuck. That expression was everything. Confusion with a hint of fear. And soon after, nothing. Big bro wasn’t so cocky now. She’d seen him make faces nobody else had. She’d seen him get punched on the chin until he fainted.

As Anna went on doing this night after night, she couldn’t help but notice that putting him back under was becoming easier and easier. Eventually, to satisfy her curiosity, she started timing it. Timing how long it took to sleep her big brother. It was forty seconds, then thirty-eight, then thirty-two… Eventually she stopped timing the seconds, and started counting the punches instead.

“Unnnzzz…”

“How many before you go out this time, big bro? Any guesses?”

“H-Huuhh? Anna, what are you- What time is- UFF!”

“ONE!”

“Guh… A-Anna…?!”

“TWO! THREE!”

“Unnnhh…”

“FOUR! FIVE! SIX…!”

“Guuuhhh… Puh-Please, please, I-“

WHAM!

“SEVEN! And you’re out!” Anna gleefully announced to the sleeping champ, bouncing her victorious ass on his chest. “Out like a light in just seven punches!”

This was it. This was her final victory. No matter what happened next, Billy would never be able to overcome this. Bookworm nerd Anna had done too much damage already. She’d knocked him out too much already. And he would never be able to recover.

“MMMMNNNNNGGGAAA~~~!!!”

Once again, Anna fingered herself to a squirting orgasm all over her once-arrogant brother’s stupid face, like the dominant slut she’d become. He was done. He… He was so fucking DONE!