I'd like to be a male nurse, and give nubile girls injections in their bottoms! Or the "Dean of Discipline in an all-girls' boarding school, and smack their bottoms when they were naughty! Yes, I AM the Devil! LOL!
Tan lines are the only way to go. When you roast it all and have it hanging out all the time, it's not as sexy as something that's been covered and then revealed. There are no men with boners at nudist colonies, perfect example.