They decided that the best place to go would be the mall. Guys usually didn't go there for shopping, but the girls did, and they wanted to be around them.
But just to make sure there were plenty of guys around, Jon said "I wish that there were twice as many hot guys at the mall than there are right now." After the wish, Jon started to feel anxious. An image of a jock appeared in his mind and soon it became an image of a naked jock. Jon started to get turned on, big time. He did wonder why he was getting these gay thoughts (he may have looked like a girl, but inside he was still Jon), but the horny feelings were so acute that he began to not care.
He needed to find a guy. Now.