Can't one bring a towel and cover ones thighs, if need arise? And thereafter, no longer any need to worry about reacting to beautiful women, because if I've does, no one would notice anyway?

Or maybe it can look suspicious if suddenly one reaches for one's towel?

I've never been in a nude sauna though, not common around here. Seems as if could be good, anyway, with a "safety plan" to avoid getting embarrassed