Oh, shut the fuck up. I'm not going to explain to you how having sex with a dog is wrong. Your twisted hobbies are your own, but don't expect me to accept them as natural.
How old is your dog? I imagine he isn't over 18... So if you look at your dog as no different than a human, then you should also see a child. You say you're 28, right? Well, I'll take your word for it... You're having sex with a dog the age of a child, with intelligence less than a child. So how are you much different than a pedophile... Besides the fact that you're having sex with another species?