How is an animal incapable of consenting? I'm pretty sure it knows whats going down when it gains the red rocket and jumps on a girl's butt.
Eh... But it doesn't really know because it's not sentient. It's like how even if a child isn't forced to have sex, it's still molestation. You could argue that an animal giving sex isn't harmful to it, but it could be harmful to the human, like that guy who died by... you know.
There's also a whole bunch of health risks that can arise from humping a guy in the butt.
Yes, but sexual health risks are a given during any sex, (I'd guess anal is more risky than vaginal, but oral is less) and you can take precautions against them. One incest baby might not be so bad, but if you have a long line of people that only have sex with each other, like European royalty back in the day, they start to get really screwed up.
And yeah, gay/infertile incest. I still think that it could be harmful socially, but that might just be my prejudice.
--
Now playing: Sakura Samurai, Final Fantasy V, Melty Blood Actress Again Current Code