The wizard smiled, saying "Do unto others..." before disappearing just as fast as he had arrived.
"What was that supposed to mean?" Katie said just before letting out a slight moan as her clit started pushing against her pants.
"Uh oh" She said in an already changing voice, her pants slipping off her slimming hips, a 2 inch nub pushing at her panties, getting larger as her breasts deflated in her loose shirt.
"Sweet!" the horny little John said watching his girlfriend become more and more boyish.
Katie pulled her shirt off, her hair shortening to a boy's cut. Her bra was so loose it quickly fell to the floor, allowing her to watch the last of her chest melt into a boys flat chest.
She moaned again as she felt a pleasurable rearrangement inside her. Katie's altering brain watched to watch, letting the panties slide down just in time to see her new testes pushing their way out, stretching the skin into her new ball sack. She grunted as she felt her new 4 inch cock, the few hairs still left were sparse and soft.
The room suddenly blurred for the both of them, they were suddenly in a smaller room with two beds and two desks. A dorm room at the all boys school they now attended.
Katie tried to fight, but Kaleb was quickly gaining precedence in her brain, licking his lips as he stared at John.