This is almost exactly a year late and you've deactivated your account but I'm replying anyway!

For me it's not a fetish -- I don't get off on TF and TG content. I enjoy the concept and execution of one thing changing into another, which probably ties into the fact that I'm trans and am doing that exact thing to myself. But even so, I started drawing TF/TG stuff well before I realized I was trans. Maybe they're related, maybe not.