I’ve always been into drawn porn of all kind! I remember when I was a kid, about 18 years ago or so, I looked up Pokemon porn, since I had a crush on Misty and I also liked seeing porn of the Pokemon themselves, always thought it was creative and intriguing. I was also massively into Maid Marian from the Disney Robin Hood. Or Lion King’s Nala. Or [insert any intriguing female character from the 90s] So seeing Rule 34 of media I liked wasn’t anything new to me. In fact I often ended up specifically looking for it.
The same thing happened after I started watching MLP in early 2011. I actively went out of my way to look for MLP porn. And since there wasn’t enough out there for my taste, I started drawing my own!
So for me personally it never was a huge abnormality to become acquainted with. I always liked drawn porn of fictional characters, for as far back as I can remember, and it never made a difference to me if the character was human, anthropomorphized animal, made-up creature or feral animal.