First of all thank you to Psynymph for starting this thread, and to Timberwolf for pointing out that it isn't sick.

Like Karin and fantassy, I also had an occasion when the doggie got curious! I was 12 or 13, and it was summer. I was outside playing, cause that's what you did way back then! Anywahoo, our dog was following me around outside, and I had squatted down to look at something when he came up and just started licking. Well DAYUM! I was like....this feels goooooood! I had on shorts so I just moved them over a little more to make it easier on the dog ya know! So I had my first oral experience and orgasm with a dog, and all I knew was that I wanted more. That little doggie became my best friend, and oh was I sad when he disappeared! And it took me until being in my twenties to find a man who did as well as that dog did!
So I have had fantasies of actually being fucked by a dog as well, but the opportunity has never arose. I'm sure I'd give it a try if with the right Dom and dog, but like sheepishone, I won't know if I like it as much as I do in my fantasies....at least until I try it.

As for abuse, I agree with what others here have said regarding male dogs with female humans as not abuse.....and sheepishone.....thank you for that lovely visual of the tied down human female being humped by the dog! Yum!