I adore good yaoi/shounen-ai and yuri/shoujo-ai, just like I adore good straight couplings. It's not the genders of the two that matter but the personalities and interactions between them that make me love a particular couple. Of course, so many of the best couples seem to be homosexual.
And as for those who have made comments about homosexuality being 'against nature'... I myself am a lesbian, and very happy as such. It's not against nature, because homosexuality is -my- nature. Sexual orientation is as much a part of a person as gender is a part of a person, whether you are male or female, straight or gay. I could no more be straight than I could be a man. It just wouldn't feel right for me, any more than being in a gay relationship would be right for a straight person. That's my perspective on the issue. A lot of people never seem to think about it from that view. I'd appreciate it if those of you who are straight and against homosexuality would think about how you would feel if most romantic relationships around you were gay, and if straight relationships were looked down on. That's how it feels for us homosexuals. I am not angry with anyone who disagrees with me and I don't care if I don't change your mind, but I would still like people to consider what I've said.