I love being naked and showing my bits off, any chance to be naked and I'm there, though I must say I do get aroused sometimes.
Well, look at my avatar. The pic was taken on a naturist or nude hike. Done so many times. I guess you could say I was semi nude as I had shoes and a visor on.
I've been the only one naked in a roomful of clothed people on several occasions and I always feel a strong sense of embarrassment and humiliation at the beginning, I've come to realize I'm drawn to it, I get really turned on. The comments are usually kind, but in a situation like that the slightest thing can feel like a put down. I'm not hung, pretty much normal size but that's always on your mind of course. If you get the chance I would say do it
It's just more comfortable for me to be naked in certain situations, especially having a sauna or swimming.