Yep. I'm not surprised by this, but it is very disappointing. I feel very strongly that I was conditioned to think men having sex was gross. It was, ironically, Sex and the City (the girls watching gay porn) that made me realize: Wow, two dudes going at it is just as hot as two women. That's when my biases around that started crumbling.
Now, if I dated a man who liked men...I would find that very attractive. Granted, I don't consider myself straight, so maybe that's not saying much. It really does disappoint me that straight women have been conditioned in this way.