I think guys running around in just their underwear and white socks is really erotic and hot to look at.
Whenever I throw a party at my place it never fails most of the guys will fall asleep, but a few of us will stay up until the wee hours of the morning and we always wind up in just our underwear.
Funny thing is, most of the time its with my so called "Straight" friends. The best part is talking them into getting naked and giving them a blow-job.
"Boys will be Boys"