Jon tried but, slowly thoughts about the wishing stone entered his head, and that lead to remembering Karyn's wish, and he noticed large breasts starting to sprout from his chest.
he noticed Karyn must have been thinking about her breasts before the wish, as her chest was shrinking back to normal, he thought about his chest when it was normal, it wasn't working, he kept subconsciously bringing up images of Karyn making her accidental wish, and soon he had long blond hair as well.
Karyn was just sitting across from him watching him, as he grew breasts, then got hair like her wish-induced hair.
Finally Jon realized, that he had a problem, normally he didn't constantly think of breasts, but this whole transformation thing must have been getting him thinking, as he could not get them out of his head
Finally, he managed to shrink them down to A-cup, but couldn't change the fact that he was wearing a plain white bra, and a T-shirt, that, though nearly identical to the one he had been wearing, was tighter in the right areas and looser in others.
"Wow jon, can't get 'em out of your head can you"
"It's not normally like this, i think this transforming is making me think strange things."
"yeah i know what you mean, your mind just wanders, and then its hard to get rid of it," she said gesturing to her shorts." Jon saw and jumped causing his small breasts to bounce slightly, a bulge in Karyn's shorts.