Karyn held the stone close to her breast and said, "I wish Jon would blend in more until we get home." A slight breeze ruffled the skirts of their dresses.
"Karyn!" Jon yelled, looking down at himself. Karyn's wish had made Jon a girl. No one would think it weird for a girl to be wearing a dress.
"Relax, Jon. It'll only last until we get home."
"But, I don't want to be a girl," Jon complained.
Karyn grabbed Jon's hand, opened the restroom door and pulled him (her?) out into the hallway. "Come on," she said.
