I would do it if I had to but I wouldn't tell anyone.
Funny story from two years ago. Went to a concert 4 hours away with a friend, his wife and his obnoxious drunken brother. I was asked to come because the two guys didn't have licenses and his wife hated driving in big cities. I was to get a room to share with the brother and a ticket to the concert. When we arrived in town, rooms were hard to come by and very expensive and so we ended up in one room with two double beds. My friend and his wife naturally were in one bed and I would have to share the other with the drunk obnoxious brother. He was wearing a skimpy pair of underwear and lifting up the sheets and patting my side of the bed while saying "come to bed, I've been waiting for this moment...". I knew that he would doubtlessly do stuff like grab my ass or hug me to get a laugh although he was totally straight. Although I had never been naked with my friend or his brother, and despite the presence of his wife, I said "okay, I'm coming to bed" stripped naked and hopped into bed right up against him. His bluff having been called, he immediately pushed me away and I had no further problems. Nobody believed I would do something like that.