The first person I told took it surprisingly well. I was a lot younger at the time, maybe around 18, and I had known him for around 3 years. We used to hang out and play video games, or we'd go hiking in the woods. One day we were talking about "kinks" we had and I admitted that I was zoosexual (which to be clear I do not see as a kink.) He was genuinely curious about it and asked me a few questions such as "Have you ever sexually been with an animal?" and even "No babies can be made doing that right? I hope not!" Overall his conclusion was "different folks like different strokes." He knows I'm an animal lover by nature. As far as I know he's kept my secret.
The second person I told was less of a happy story. I had been best friends with a guy for almost 8 years at that point. When he came out as gay in the 7th grade I was one of the few people that didn't leave him behind. A matter of fact, him coming out as gay changed how I viewed gay people at the time. Before that I was definitely 100% homophobic (like most kids in grade school.) But I stuck around and even defended him to others. Something he was greatly appreciative of. Well, many years go by and we're in our late teens/early 20s. I was at a very low point in my life and was suffering from, what I now understand was, manic depression. In a moment of weakness I told my best friend at the time that I was zoosexual. At first he seemed to take it okay. A week later he was messaging me concerned that I was hurting and raping animals. I explained to him that I was an animal lover at heart, something he already knew. I explained to him that my sexuality does not harm animals and in fact if the animal gets to choose it can 100% be mutual pleasure. He seemed to accept that answer was told me "Yeah, I shouldn't have doubted you. I know you're a good person and would never do anything to hurt anyone." We hung out a few more times but after about a month, maybe a month and a half later, he cut all contact with me. He'd never message me back and at one point unfriended and blocked me from all social media. I didn't see it coming. But as far as I know he hasn't told anyone about it. So at least there's that.
This one cut deep because him and I had history together. I thought surely he would accept me and my sexuality, but I was dead wrong about that. 8 years I knew the guy, but not even that was enough for him to accept me for who I am. It's sad really. After that, I never told another person myself.