I wouldn’t mind, but it would mean that my gaydar is properly calibrated 
The idea of two guys squicks me out a bit(rather like thinking about your parents or grandparents having sex), but its not a strong enough feeling to change how I deal with a person. There may be a cringe if I see two dudes necking, but thats it. Aside from that tiny bit of disapproval on my part, its all good.
My husband feels the same way. He has no problem with gays, in reality or in theory, but he does not want to see two men in an intimate situation. I don’t see this as any kind of prejudice on his part, it just, well, squicks him out. Me, OTOH, well, I think it’s kinda hot . Seeing “girl-on-girl” action I’m either completely neutral to, or find kinda hot if the girls are hot. But the girls they use for girl-on-girl in porn are never the kind of women I find hot. I like 'em androgynous. I’m pretty straight, but if Jodie Foster came knocking on my door. . .or Ellen DeGeneres. . .well, I might have to “change parties” for the afternoon. 