I knew a gay guy in uni, he spent so much time with my roommate who would treat him like a sister, she would be in her bra and undies and he'd sleep over, they'd do pretty much everything together. Anyway I always thought he was a closet straight copping a feel without anyone suspecting him.
So yeah that came to mind. I am guessing that you don't parade in your undies infront of the gay guys though so I guess you're safe.