The K App - Opposite Day - Cover

The K App - Opposite Day

by Krosis of the Collective

Copyright© 2025 by Krosis of the Collective

Mind Control Sex Story: It's Opposite Day!

Caution: This Mind Control Sex Story contains strong sexual content, including Ma/Fa   Mind Control   NonConsensual   Heterosexual   Mother   Daughter   First   Masturbation   Pregnancy   Voyeurism   Revenge   .

All sexual activity is with characters 18 years of age or older.

Rodney choked on the toilet water, his head held in place once again by his tormentor. He longed for the flush, the sweet moment of reprieve from the oppressive, stinking water. Flush, damnit, flush! He couldn’t breathe!

The young man sat up from his bed, covered in sweat and whooping air into his lungs. The nightmare again ... Todd pushing him down into the toilet ... while it hadn’t happened in years, that asshole still threatened him every once in a while to keep his quarry on his toes.

And what Todd’s girlfriend had done...

His phone chimed, the screen lighting up to indicate that it was just past midnight on April 1st. Happy April Fucking Fool’s Day, he ‘rejoiced’. Picking up the phone, he frowned at the new app on his home screen which was just a glowing red K. Curious, he tapped it.

“Oh ... oh wow...”


“Hey, Trinity!”

The fit ash blonde turned to see that dweeb Rodney approaching in the hallway with a smile on his face. The greasy-haired squib had been bullied by her boyfriend Todd all through high school, and she had even started a rumor a few months previous that the skinny loser had genital warts so that no girl would show any interest in him. “What do you want, deadend?”

“You hate me, right?”

She thought about it. “Well, I don’t hate you, but I don’t like you. Now why don’t you fuck off before Todd sees you talking to me and folds you up like an envelope?”

The pale-faced guy thought for a moment. “You definitely wouldn’t have sex with me, though?”

“WHAT!? Ew, no.”

“Cool.” He held his phone screen toward her. On it was a stylized K logo with a prominent, blinking message below: OPPOSITE DAY.

“Uh ... shit.”

“C’mon...” the slim guy grabbed her hand and pulled her up a nearby stairwell. Her head spun as he directed her into the wing of the school that was closed for renovations, pulled out a key, and opened a classroom. “I’m not supposed to have this key, but, y’know...” He tapped his phone and pulled her in with him. “Now, take off your clothes and bend over the desk.”

She blushed as she pulled off her shirt, revealing her bra-covered C-cups, and then her thigh-high skirt. Normally, this skidmark wouldn’t have a chance with a fit, popular, girl like her, but it was Opposite Day. She shrugged out of her titsling, pulled her lacy panties down, and assumed the position. “Hey, that kinda hurts,” she winced as he started poking his dick at her dry vulva. “And you’re not even using a condom! There’s a lubricated one in my purse.” She waited as he took the rubber out of its packet and smeared it all over his hard dick, but then he tossed it to the side.

She stared as he brought his bare, glistening six-incher toward her vulnerable pussy. “You can’t ... not without...”

He paused. “Do you ever do it without a condom?”

“No!”

“But it’s Opposite Day.” He pushed inside her.

“Oh-hh...” Rodney’s member was six inches in length, a little longer than her boyfriend Todd’s, though not as thick, so he was able to shove it all the way inside without much difficulty ... then he started spewing.

“Ohhdaamnn...” he moaned as he inseminated her depths, the first man to do so.

“Goddamnit...” she groaned, disgusted.

He pulled out. “Phew! Normally I wouldn’t be able to go again, but...” He activated his phone, the glow of the screen illuminating his plain face, and she could see his flagging dick rising again. “ ... y’know. Now, get up onto the desk, on your back with your legs over the side. That’s it...” He stepped between her pale, shapely thighs and rubbed the head of his reinvigorated cock between her dripping pussy lips. “You hate this, right? I disgust you?”

“Yeah, you asshole!”

“But it’s Opposite Day.” He pushed back inside her.

It was like night and day: when he got his dick all the way inside, she came hard. “Ohhfuuck! Ugh! MMM! Rodney...”

“Yeah, that’s it ... cum on my cock, you fucking slut. You deserve this, you and Todd. Oh, look how hard your nipples are now ... mmm...”

His head moved down and took one into his mouth, making her cum again. “Ngh! Ohh!”

The slim guy managed to fuck her for another ten minutes, giving her three more orgasms, before he started speeding up. He was going to cum inside her again, and this time she wanted it! She wrapped her arms and legs around him. “Yes ... yes...”

“Urghhh!”

Feeling his hot load penetrate her unprotected depths once more, she came hard. “UNGHH! UHH! Huhh...”

Rodney pulled out a minute later, making her gasp at the sudden feeling of emptiness, other than the two loads of sperm-filled semen he’d deposited. “Now, I’m sure you want to tell people, especially your boyfriend, about this, but...” He held his phone screen out to her. “ ... now you won’t, right?” She nodded as she tried to calm her body.


Sure enough, Trinity couldn’t tell Todd or anyone else about what had happened, nor could she go to the washroom to drip out the dweeb’s thick load after he mentioned it. Fucking Opposite Day! she raged. She spent the rest of the school day feeling his stuff trickle out into her panties. Her nipples remained hard, so she was glad for her bra.

After school, she and Todd went back to her house to do homework. However, as they entered through the front door, she heard her mother calling.

 
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