I think I'd rather a lesbian check me out in the locker room and think "damn she's hot, I'd do her" then a straight woman who will be thinking "she should have stayed in the gym longer to do more abs."
Why is he so much more afraid of exposing himself in front of a gay man than in front of straight man? I've been in locker rooms with lesbians before and not one incidence of rug munching has occured just because we both happened to be undressed in the same room.
I don't think anything actually has to happen to make a person uncomfortable. I would be uncomfortable exposing myself to a room full of women, not as much as a room full of men, but still uncomfortable. I would, however, refuse to undress in a room full of people that could potentially be checking me out.
Soozy, I was in the military and have showered with too many women in my life. Believe me, the straight ones check you out way more than the gay ones.