Repulsed. I do find it less repulsive to think about sex with a man (not anal, that I find quite severely disgusting to imagine myself doing, but literally couldn't care less about other people doing it) over with a woman. The idea of me myself doing anything sexually with a woman just feels gross, I don't like it. But, the idea of me having sex with a dog, specifically with a female German shepherd, feels right and desirable, so long as she is mine and she loves me and enjoys it too.
I know you already know this, but I'm still adding it to get the thread going.