One of my personal largest...turn ons? fetishes? I dont know, fantasy's in the end is femaleH/maledog sex. Now I agree that forcing an animal that is unwilling to act, is abuse, I do not feel that a dog who willingly, albeit perhaps not through his intelligence but more so instinct would be abuse.
I mean a dog who feels the instinct to mate, and the need and desire, isnt wholly different from a really horny guy. Why not let him at it? not to mention the tongue, if he feels like taking a taste, I dont see whats wrong with it.
Now i CAN understand women not wanting to participate, I mean to each there own, I like to watch and so on. Ive found that especially in fantasy roleplays and such with it, writings and such, ive found that alot of women find it to be a very primal sort of fantasy, perhaps not one they would live out, but none the less a strong one.
Whether or not an animal can choose I think is essentially irrelevant, due to the fact that if they have no need mentally to choose, if their instincts lead them into that action and they participate then they are fine. And most dogs if they dont want to, wont participate and/or will fight back.
Someone posted, and im not sure, about their being problems with realy dominant alpha dogs. I WILL give this a point, if you are going for it with ah...larger animals often times, it CAN be a problem, in that the dog can take to her like shes well...his bitch...and ive read occasions where the husband is attacked by the dog for trying to fuck the wife. So this being said you either need to train the dog well, or make sure the dog is tame enough to not have this issue.
But either way I find it to be an extremely extremely hot fantasy and were I to find a female partner interested in including it...welll...-halo-