With animals, I think that I am a little bit bisexual, even though I am as gay as humanly possible with humans. I mean what happens is that I stick my fingers up a bitch's snatch, and she orgasms furiously and then is very hyper and extremely pleased. Well, I made her pleased, so I am like, okay, this works. I therefore do it often. However, when I tried sticking my penis into a bitch's vagina, I went flat as a popped bicycle tire, and I am therefore fairly certain that I am really so fucking gay I shit rainbows.
I can imagine a hypothetical human woman that is a lot like a bitch dog, very snuggly, really eager to be anyone's friend, and very open to being touched. I guess that I actually would be able to enjoy setting her off onto multiple stacked orgasms and get a sort of vicarious pleasure from it.
I think I would still be flat as a popped bicycle tire if I tried to fuck her, though. It's just not going to work.