I'll break silence to say that this is an unfair accusation that gets slung at bisexual people all the time, and it's bullshit. Gay people, Straight, Bi whatever, you shouldn't have to answer to other people's standards. You like what you like, end of discussion as far as they're concerned.

Sexuality is complicated enough without other people's shit and expectations of how to act a certain way if you are <insert here>.

Yes, it's a thing. No, I'm straight. I just don't think that someone else's genitalia is my problem unless we're having relations/a relationship, in which case I become somewhat interested for health reasons.