Hi, am 23 years old, the problem i have in my penis is that, still the skin have not opened and make way to the ball like arrangement come out of it..i can masturbate, but the ball wont come out..will this a problem while making sex..? and while i masturbate, if it comes out of the skin, its so sensitive and its paining a lot if it touches somewhere and suffers a lot to go inside the skin..please give right suggestions