"I wish ..." Jon said, smiling. "... that girls would find me irresistible and would beg me to date them." Finally, he'd be able to score, and maybe even take some attention off of all the jocks, who were constantly getting dates with hot girls.
The stone glowed, granting his wish. But unknown to Jon, as of yet, his wish wasn't granted the way he wanted, since this was the Gender Reversed Stone, and not the stone he inherited from his grandfather.