Heath quickly became Heather. His pecs bulged out and softened, becoming wonderfully shaped breasts. He gasped as he felt his penis and testicles shrink, withering away. His genitals withdrew into his/her body, leaving behind a girl's vagina. His clothes became more feminine, complete with bra. His masculine muscles became more feminine. Her mind changed, as Ty's wish finished. No one noticed that Heath was a girl, nor did anyone remember a guy named Heath.
Ty realized that many other people had secret desires. He turned his attention to Tristan, a small, kind of wimpy kid. His secret desire intrigued Ty, so he granted it.
Tristan stared at Jack, now half-donkey, half-man. He didn't notice as his very sparse body hair began to get thicker. It coated his arms and legs, racing over his butt and crotch, up his belly and over his chest. His hair rand down his cheeks, sideburns growing into a goatee.
He did notice, however, when his body began to expand. His secret desire was to be just like what Jason hed changed into. He had been very jealous when Jason got his fantasy. Luckily for him, he had Ty in the room. His arms and legs grew thicker. His feet grew longer and wider, like a sasquatch's. His chair creaked as pound after pound of muscle inflated his frame. His clothes ripped, unable to bear the strain of his new body. As his pants ripped, they revealed a new change.
His underwear's crotch was bulging. Suddenly, it burst, and a monstrous, 9 inch long penis unraveled, plopping out on his desk (he had jumped up at the ripping of his clothes). His balls swelled, quickly surpassing baseball size. They continued to grow, stopping when they were the size of cantalopes. His penis grew longer and thicker, finally stopping at a massive 30 inches. His new height would keep it off the ground, but since it still rested on the desk, it had protruded over and onto John's desk. John just stared, awed at the giant ape-man before him. Ty reached into his mind, and read his desire. Amused, he made a wish.
Tristan's mind began to devolve, his IQ dropping fast. His eyes became dull, more animalistic, and he slouched over, his long, thick arms resting on the ground. He turned to John, who, thanks to Ty, stood up and stroked Tristan's massive 30 incher. Accepting John's plea, Tristan scooped him up onto his back. John's desire was to be with an ape-man like Tristan. The two left the room, John sighing happily.
The rest of the class just stared. Then they looked around at each other. Because no one remembered Heather as Heath, they had only seen two people turned into ape-men. They all wondered the same thing: Was this some sort of disease? Were they all next?