The empty classroom echoed with wet, obscene splurts as Olivia’s hyper-muscled body shuddered hard on the desk, her torn pink-and-white cheerleader top hanging in rags off boulder-like pecs matted with thick dark hair and slick sweat. The shredded skirt rode high on tree-trunk thighs, her huge hand wrapped tight around the wrist-thick veiny cock that throbbed and erupted thick white ropes of cum straight onto the floorboards with loud splurt-squirt sounds.

“Jamie… oooohhhh godddd please… turn me back right now!” she begged, voice still cracking high and girly before dropping into a gravelly rumble that vibrated through her massive chest. “I’m not supposed to be this huge… I’m Olivia, the cheerleader… not a dude!”

Jamie stood frozen a few feet away, glasses slipping down his nose, his own pants tented painfully as he drank in every twitch and spurt of whatever this is. Did the spell gone wrong or right?

Another dizzy wave slammed into her, head lolling as fresh jock instincts clawed deeper. Olivia’s free hand groped up her ridged abs, fingers digging into the dense treasure trail of hair leading down to heavy swinging balls that slapped meatily against her thighs with every involuntary hip buck. “Nnghhh… my head… it’s getting so fuzzy… fuck, why does my cock feel so good pumping like this?” she groaned, the words tumbling out deeper, rougher, while hot cum kept jetting out in powerful arcs that splattered her own muscular calves. “Jamie you bitch… reverse it… I don’t wanna think about pinning you down and breeding that nerd ass!” Her voice cracked again, now fully baritone and edged with cocky hunger she couldn’t fight. Jamie’s breath hitched, a low moan escaping him as he watched the denial twist into something far hotter, his hand unconsciously pressing against the bulge in his jeans.

The dizziness crested harder, Olivia’s wavy hair matted to her sharpening jaw as stubble prickled across it and her eyes glazed with raw alpha need. She tried to stand but her powerful legs just spread wider, the ruined skirt riding up further so the fat purple cockhead flared visibly, still leaking heavy globs that dripped down the desk edge.

“Uuuunghhh… no… I’m a girl… I can’t… be this dominant horny jock for you…” she moaned, but the protest melted into a deep chesty growl while her hand stroked faster, milking out more thick cum with wet schlick-schlick noises. “Shit bro… wait, no… Jamie, help… my balls feel so full… I just wanna fuck something tight and nerdy…” The old girly thoughts frayed faster, replaced by flashes of locker rooms, bench presses, and claiming Jamie roughly. Jamie stepped closer, lips parted, savoring the slow erotic war happening right in front of him.

Fresh masculine fog rolled in thicker, Olivia’s posture shifting on the desk as broad shoulders rolled back dominantly and her massive arms flexed with a loud rip of remaining fabric. “Fuuuuck… this body… it’s so goddamn strong… no, stop it… I’m begging you Jamie, turn me back before I… before I grab you and make you my bitch!” she snarled, voice now pure deep jock thunder, but her hips kept thrusting forward, cock slapping wetly against her abs and spraying another messy rope across the floor. Her eyes locked on Jamie with new hungry fire, denial cracking wide open as the aggressive boyfriend persona flooded every corner of her mind.

“Come here nerd… let me show you how a real jock takes care of his boy…”

Jamie’s grin widened, heart hammering with pure lust at the perfect dominant mess he had created, the air thick with cum and musk as the change kept rolling on and on.

Olivia’s thick fingers squeezed harder around the pulsing shaft, another long groan tearing from her throat—“Haaarghhhhhh-aaahhh fuuuck yeahhhh…”—while her his heavy balls churned visibly, ready to unload even more as the last mental walls crumbled completely. He finalized his changes.

The jock grinned through her his face, eyes narrowing on Jamie with pure ownership.