As an 18 yr old my penis is pretty average size around six inches hard decent thickness with smaller balls. The only time anyone is even able to see my full nudity is when I take a shower and even then I walk to the showers with a towel covering me. I am currently 18 and I have never been one of the people to just walk around with my penis on display.
I've been going to workout at the ymca since I was 16 and one of the things I always enjoyed about the ymca was getting naked in the locker room.
