"I wish that tomorrow, something will turn me into a girl, but nobody else thinks it's to the stone. I wish that this is reversible, but everyone except me and Karyn thinks it can't be reversed."
Jon wondered what would happen, especially if he kept it up for several days. Unlike a wish for a reality change, everyone would know he'd become a girl. Since they would think it can't be reversed, would they try to get him to change his name? To become comfortable with life as a girl? Would guys say "I know you were a guy, but please go out with me anyway?" Would his parents insist on female clothes, or would they just let him act as boyish as possible because they didn't want to force him to change? He bet that different people would act differently... But he would find out.