TE makes a great point about intersexed people. Half of the people reading this will just roll their eyes and say to themselves, "why are they complicating this further," it's a category of people who render our rigid categories of gender pretty damn flimsy. They were born that way, and while we might be inclined to think nature might have committed a major fuckup, I don't know that that's really for us to say. Medical technology can change things for people in this group today, but it wasn't always so, and it still isn't always going to be affordable for many intersexed people. Correct me if I'm wrong, anyone.
Why not try to accept people for what they are, however they are, since in this society you're not going to be expected to have sex with ANYONE you don't want to? Unless some crime is committed, and that's not really at issue here.
Oh, and I can't stand queer theory. I'm open to hearing about Judith Butler if someone could translate that shit into English.