Aside from the showers after playing sports and in the Army, I have played strip poker many times, engaged in orgies and group sex, a few thousand threesomes, some foursomes and me and 5 girls one night In Sydney, Australia. I wife has had her friends look at my penis and play with it. I threw a few naked pool parties and a few sex parties too. It was my lifestyle in my early twenties before my wife and I settled down with our girlfriend. I had a good body back then. I was a Jock and fresh out of a year of combat. Also had a good sense of humor and girls like that. I lived with a guy who was model good looking and happened to have the richest father in the city. He threw a party each month that attracted the pretty and gold digging girls in the city. By the end of the night everyone was naked and have sex with each other, sometimes one on one but mostly in groups.
I was playing organized and high school sports since I was 12 so I was naked among guys for a very long time. In the Army there was zero privacy. Then I rented a house and shared it with two or three other guys who brought home girls and we sometimes swapped them and even had a gang bang or two. Being naked in front of anyone was never a problem because I knew that I looked good and could perform in a crowd. When I was 10 it was a problem though. Just had to get used to it. Truth be told, I liked getting naked in front of a group of women. They always liked what they saw and my wife and I got to have sex with all of her friends before settling in with her best friend. Two of my friends' wives came on to me but grabbing my crotch when their hubby was not looking and were the ones to start sex games where we all get naked or have to do what the game cards said. Our best friends asked us to wife swap, which we did. Not a problem then but in my old age, I rather not although I look much younger than most guys my age.