I am 23 yrs old male and not circumsized. I thought that the skin joint (on penishead and the penis skin)would break automatically when i would have sex for the first time. But it didn't happen and I have had sex for like more than 100 times even with virgin gals also. But still my penis has the skin joint and I cant pull my penis skin all towards the end due to that joint. How to break that skin joint? is it a normal case?Please advise ASAP.