You just reminded me of that bit in Shrek 2 where Pinoccio says he's wearing women's underwear and his nose doesn't get any longer so they say 'Are you?' and he says 'No' and his nose gets longer, and this other character says 'Yes he is, yes he is!, it's a thong!'
But still, it applies to men too as you could have come wandering out of the shower in just your towel saying 'Hey there, W, do you fancy a coffee?' and at your stage in friendship it would have ruined the DB'ing