I am a straight man in RL. (Well, I'd be allowed on Mt. Athos and in the men's room, anyhow.) I have a male avatar, who is straight (as far as I know), and a female avatar, who is bisexual. (I admit that it's more fun in SL being a woman than being a man because you get to try all sorts of clothes on and, well, do you-know-what while looking at yourself with an adult poseball. Besides, girl avatars just look prettier. LOL) So far, I notice people being more generous with the woman than with the man, and I notice my female avatar gets called "hon" or "hun" a lot. Which is fine with me, as my female persona is female. As far as I know, I haven't the guts to "transgender" an avatar. Although I might one of those days.