My friend masturbates for at least two times a day. Sometimes he masturbates just humping his penis while his pants are on without holding penis in his fist. He just uses his fingers and hits penis from down to up when pants on just like we shift automatic gears of a car which are below steering. Now he is having curved penis as he says. Is there any way to straighten his penis without any surgeries. He is going to get married in 2-3 months.