Michelle makes an accidental wish?

Michelle felt a little dazed, but shook it off. "I'm sorry that I didn't tell you I was a girl before." she said. She then walked into her room. Jon thought that it might be nice to have a little sister. "But it was hard. I wish you knew what it was like to be a girl masquerading as a boy all her life" and she walked away. Of course, since Jon was holding the rock at this point, nothing at all happened.