Ty glanced across the classroom and was disappointed when he couldn't decide what to do next. Annoyed at his lack of creativity, he wished to know the desires of the people sitting at the desks around him. Through the noise, he focused in on one in particular, the desire of the girl sitting just in front of him. He was pretty sure her name was Abigail, but they had never really talked before. Ty wished silently for the girls desire to become true, right there in the classroom. He also wished that no one would notice the changes except for him and Abigail, and that no one would react to what would most likely be Abigail's surprised reaction.
The first thing that he noticed was that Abigail was slowly growing bigger. Both taller, slowly, and broader, a little quicker. The muscle of her back was filling out, into a perfect V shape that told Ty his wish was working just as intended. Ty realized that he wasn't at the best angle too see everything that was going to happen, so he made a wish for the girl to be sitting next to him, instead of in front. Instantly, he had a much better view.
Her shirt was tight, showing the breasts that were slowly reforming their shape into powerful pecs, before pumping up larger than they ever were before. Abigail adjusted her position on the chair, focused on the teachers lecture, and completely unaware of the changes that were taking place. As Ty watched, she finished growing taller, and through the gap between her shirt and her pants, he could see abs forming, growing more and more defined every second.
Ty heard a small tearing noise, and realized that her clothes weren't going to last much longer. He made a quick wish for them to grow just enough to not fall off (he wouldn't want her sitting naked in class, not yet anyway). Her shirt stretched, unbelievably tight over her upper body, just as the changes moved downwards. Her legs were growing, even faster than anything else had, leaving her pants more than skin-tight. Finally, the last change became apparent, as a bulge formed in the pants that was longer than even Ty had expected.
Abigail still hadn't noticed the changes, so Ty "accidentally" dropped a piece of paper on the ground, which she reached down to get. As she reached down, she noticed the arm, full of muscle, that she hadn't seen before. She half-screamed, a loud, baritone scream, but then began to flex, looking at her whole body with an immense excitement.
Ty sighed, happy with his work, as he took in the sight of the new man.