David rolled his eyes back from being forced to penetrate Lauren's sentient pussy. The absolute control it had over its muscles proved for a very tight, and very pleasurable hole. "Oh my gooood!" Jeff moaned, starting to buck his hips out of instinct. Despite the fact this was supposed to be a prank, despite the fact he knew this was immoral, and despite the fact he knew he had a means to fix this, it just felt too damn good for him.
Lauren's pussy felt David's change in bodily movement, eliciting it to smile. With this turnaround in its lover, it can go ahead with its new plans. "Even though you said no before, I know you didn't really mean it and accept your apology, cutie." The pussy cooed, twisting and coiling around David's cock. Lauren's muffled moaning continued leaking out, as her gigantic tits forced her to suck her nipples. "We'll love you forever and ever, honey, that is no lie." The pussy urged, making Lauren's hips move up and down faster. "But, make it easier for us to love you. Use that remote to help us, not hinder us." David's tongue out, he reflexively nodded, much to Lauren's dismay. "Don't listen to them and stop this!" She shouted, before getting her face full of her own tits again.
Slowly inching his hand over to the remote, Lauren's pussy used her foot to kick it closer. "Remember babe, we love you. A lot." It said, woth a couple more clenches for good measure. Holding it up in his hands, David, lost in his ecstasy, realized he could fix this all right now. Undo Lauren's changes, wipes both their memories of this event, and live normally again. But, the sentient pussy was way too persuasive! Pressing buttons to provide options he wanted for Lauren's pussy, he finalized them and watched as they took place. Along with his step sister's gigantic boobs growing again, other parts of her did as well. Her chest swelled up to an estimated P-cup, with her ass growing just as big. The growing ass allowed for her hips to get wider as well. Lauren's more worrisome changes came when her lips ballooned into plump dick sucking lips. 8 times bigger than their original size, Lauren's moaned came out even more muffled. Her pussy lips also plumped up, making her insides even tighter and wetter. "Ooh babe, you're so good to me." The pussy moaned as David pounded his hips harder.
But there were more changes to come. Lauren's moaning continued, but she couldn't control her mouth, much to.her dismay. In fact, all the control of her body was lost, as her torso sat up and her arms were used to help her get on top of David. In this position, her body bounced up and doen on his cock, making the tip poke so deep into her cunt, it was kissing her cervix. "Oh god, I love you so much!" Lauren's pussy lustfully moaned, now controlling Lauren's body entirely. Bending forward, she locked lips with David, as Lauren cried from her body banging her step brother against her will.
Yet, as Lauren rocked up and down, she felt gravity pulling her. Seconds went by, as she noticed herself slipping forward. Sure enough, the top of her head slid off at the point just between her nose and mouth. It slipped and fell behind, giving her a good look at her oversexed, pussy minded body making love to David. "You've given me the gift of freedom, David. Thank you." She said to her lover. With that sentence, David pushed her on her back and crashed his hips against hers. The wet sounds of their connected genitals struck fear in Lauren, who could still feel what her body felt. And she did not like what happened next. With all the penetration and mating, her sensitive pussy had kept climaxing over and over, but not David. "No wait!" She thought, feeling David's tip penetrate her cervix. He finally orgasmed, grunting and arching back his head, filling up Lauren's womb with his virile seed. "Yes, finally!" Her pussy controlled body shouted, locking her legs around David so he can deposit every drop into her.
After hours of endless lovemaking, David got off his pussy minded mate. Dripping with sweat, she pat her belly full of warmth. Her lover did a good job, and further proved he was the right guy for her. Kicking aside the top of her head, David helped Pussy up to her feet, giving her a couple kisses. With the remote in his other hand, he wondered whether to make more changes to the world to make it acceptable for his mate to be his half headed, pussy controlled stepsister.