She changes a bunch, turning "big bro" into "dainty femboy with a fuckable ass"

"You've fucked with the wrong 'freak', brother." Karis said with a chuckle.

She walked in a slow circle around his stiff form, eyeing his manly visage up and down. not inadequate for some she supposed but...

"ohhh... I'm going to have sooo much fun with you 'big bro'. We'll both be making a mess and you'll be cleaning all of it up like a happy little slut..."

She walked up finally reaching the front of him, placing a finger on his chest, that manic gleam still in her expression. She stepped back with, skipping and with a twirl as she lifted her phone once more.

She watched with glee as his features began to change, a little more here, a little more there, shrinking, shifting (growing elsewhere). He remained stationary throughout, only the faintest twitch of the eye hinting at anything going on behind that rage-fueled face of his...

She jerked her cock to the sight, reveling in the power that she had, she placed the tip of her dick against his swelling thigh, rubbing dripping jizz onto his jeans. Her tits bounced as she jerked her cock, goo smearing from the tip onto his now adequately thick thigh.

"You're gonna be my bitch. Got that? My baby big bro bitch who takes my fat futa cock every moment of the day, no matter, whenever! You know why? Cuz' I'm gonna make you want it, you'll be unrecognizable, just my slut to take a dicking down when I please!"

Growning out in bliss her cock erupted, sending splatters across his thigh and all over the wall and floor behind him. She shuddered, falling into him so that her head remained in the cleft of his perky little pecs as more gooey white spunk shot from the tip of her dick behind him.

dainty feminine femboy, 25 years old, short brown hair, angry annoyed expression, shouting, pointing finger at viewer, jeans, black hoodie, gigantic ass visible from the front, frozen in place, fist, brown eyes, otoko no ko,