Wow, this is some mine field that RG has laid out. Well, fortune favors the bold. The whole point of casual party play is that I don't want to make a play partner nervous or otherwise uncomfortable, and any undue focus on "that area" will certainly cause that. Assuming I have a say in the matter, clean shaven is extremely hot, and neatly trimmed is always pleasing.
(Sheesh, I never thought my 200th post here would be about this)