I remember seeing a mainstream magazine with some actress and her dog, they were kissing. (early 80's I think) And in suggestive poses. I couldn't stop thinking about it. And then it became a fantasy. I really wanted to see women with dogs. This was in the 90's. Long story short, I was in the middle of puberty. I didn't start masturbating, so when i was horny, it was a lasting torment. I tried messing around with a male dog. I didn't like blowing him, when i tried. And i got scared when i tried letting him mount me. He was a big Rottweiler and we did kiss. He really liked that and would bull me over, deeply kissing me.
Then nothing... I did try with a female dog. Letting her lick me, and then giving her oral. She REALLY liked that. And even though she was fixed, she would want me to do it. Never tried anything more.
I realized I prefer the fantasy and I like watching, mostly women with dogs.