Not sure what you mean, kat/katlaughing. I don't imagine that anal sex is as popular with heterosexual couples since it's not as, um, anatomically necessary, but if they do it, they can certainly transmit HIV.
Any Bishop Spong readers in the house? I'm not saying he's Gospel (no pun intended) but his case is that the Bible is largely political--pieced together and made up to make Jesus look really good. Not that he wasn't a remarkable person to begin with.
My parents never made a big deal out of it, so by the time I knew what it was, there had been gay people around me for years whom I knew as people, not as gay people. I think my reaction was something like, "Oh, her marriage failed because she was married to a guy but she liked women. Yeah, I guess that would be a problem."