Yeah, this is one of those things that I can't do that everyone else can. Maybe alone, sure, but not with people. I've had issues with sexuality and nudity (maybe it's because I didn't grow up on a nudist colony full of average or ugly people in the middle of nowhere!
) so I would certainly be tempted, possibly with either gender. If I got an erection, as I personally would expect, it would just be so humiliating. If the person is good-looking, then I can't be around them naked without lustful thoughts, far more so if it's some girl my age. If it's some older, less attractive person, then it would be disgusting to see them naked. And my body is scrawny, pale, ugly, and full of rashes and starting to get excess hair. I do NOT want anyone seeing me naked, nor would anyone want to.
If I ever were to do something like this with a group I'd have to start working out and get my image under control and then somehow control lustful urges and not get an erection. Too much impossible work.
Just my 2 cents, no nudist propaganda about how natural it is to be naked, please. What's natural for you is unnatural for me, and given my past sexuality issues nudity has aroused me when it really shouldn't have. So no thanks. Although advice as to what to do in this sort of situation if I ever "had" to do something like this is welcome.