Yea I think it was a few things for me. I remember being a young horny guy, innocently looking at “girls kissing” videos on YouTube. Somehow, a girl making out with her dog popped into it he recommends videos and I watched it. I found it so hot and arousing, I had to watch more…
As far me myself though, I’d when I knew I first had an attraction to dogs was when I first made out with my chocolate lab. I always loved the way dogs’ tongues felt, but I never viewed it sexually. One high night, after watching all those dog kissing videos, I decided I had to try it with my boy. It was so hot, passionate, sloppy, and i definitely was hard during it. That confirmed it for me.
I knew it was taboo and “wrong”, but at the same time it felt sooo good and my chocolate lab was a pro kisser and licker. He didn’t need any baiting or extra encouragement, it was just something he loved to do on his own. After making out few time, I thought “if a tongue that big is fun to kiss, I bet it feels great other places…” and the rest is history lol