In my opinion, the truth is no. It's like a simple taste or attraction similar to bisexuality. Not literally, since I'm heterosexual, but just like bisexuals are attracted to both genders without preferring one or the other, I get horny by human women and female dogs.
Yeah, I get horny with a human tits or a dog cookie. :v
But, if I had to choose one, it would be humans, because I can have genuine conversations with them and connect more deeply than with a pet.
Even in a sexual context, the positions, dirty talk, grips, kisses and other things are something that an animal could never match due to obvious limitations, apart from the fact that the female figure is very beautiful, being able to grab the flesh of her butt it's a nice thing.