I can't remember the last time I wore men's underwear.
But, what about a bra under guy clothes with no breast forms? There are often times when I underdress, but often when I'm putting on a bra without breast forms, and I look in the mirror at those flat, wrinkled cups, it looks and feels wierd. Yet as soon as I put on a shirt or top over it, it feels comfortable, or should I say, comforting.
Does it make any sense, though, to wear a bra if you have no breasts to put in it?