He was about to get off the boy and get away when he seen the boys hand fall on the stone as he said "God I wish I could do this again".
There was a flash of light and he was ready to to have sex once more time.Jon had sex again,against her will.
When they ended,Jon grabbed the stone quickly,stood up and wished "I wish I was myslelf again."
Jon again was the sweet and dumb girl she was just a moment ago...