Jack and Jon Change Next

"What the hell is happening to me?" Jack asked, panicking. Sarah could only stare. Her boyfriend had breasts! Big ones. They pushed his T-shirt outward. Jon and Karyn couldn't believe what they were seeing. Or, actually, maybe they *could*. Something like this could only be done with the wishing stone. But who had wished it? The stone was currently still in Jon's pocket. He reached down to take it out, but found that he couldn't. His pants had turned into a miniskirt, meaning he had no pockets. He looked himself over. He was still a guy, but all of his normal clothes had turned into girl's clothes. What was happening?