"I wish that Jon will become Ms. Farber's teenage daughter Jillian... oh, and Jillian really likes me and will go out with me."
"What?" said Jon. "I heard that. You made a wish! You have the stone..." But it was too late for Jon as his body began to reshape itself. He developed breasts and felt lipstick appear on his face, while his clothes changed too.... Soo Jon had been transformed into a girl.
But Mike didn't completely understand how the stone worked. It changed reality and changing reality for the owner of the stone could be dangerous. In a reality where Jon was someone else's daughter she wouldn't have inherited the stone or lost it here.
"Give me that!" yelled Jillian but the stone vanished from Mike's hand.