Jon kept running to school. But when he got to the school grounds, he stopped. He looked around, bewildered.
"What am I doing here?" she asked out loud. Since Jon hadn't heard the wish, he thought that he really was Jessica Simpson. Jon's mind was completely gone, replaced by the mind of Jessica Simpson.
Now, she was mentally and physically Jessica Simpson. And the only person that remembered Jon was his mother, who had made the wish.