"I wish I looked 16 years old."
Jon's upper body became that of a normal boy his age. His lower body wasn't affected at all, nor was, unseen to him, Karyn. (For some reason, the stones had made Karyn fit into the pants by giving her a full 16 year old body, but made Jon do so by giving him half of one.)
Meanwhile, Karyn was beginning to feel cramps. It had been almost a month since her last period, and she was due for one now. Still, there was no need for the slightest bit of discomfort with a magic stone. "I wish that my period ended yesterday."