It was a progressive discovery. I remember as a kid being affected by gross-out humor or stink jokes in media in a funny, sometimes obsessive way, thinking about them in details afterwards or remembering a movie or a show through how it had this kind of scenes in it (a lot of 2000s media with fart jokes played a part). Over the course of my teens, this specific interest narrowed down progressively to farts (the others becoming more "adjacent", sometimes not being of interest anymore) and I started to fantasize about scenarios with gassy dudes. My appreciation of masculine characters was also quite intertwined in this journey of discovery, and as a result farts became, in my own fantasies, a very masculine thing, fitting as a careless, rude act, a sign of power even, with admirers indulging gassy characters for doing so. I also remember thinking for a very long time being alone and looking for definitions for this "interest" I was experiencing (I remember thinking it was "not scat, I'm only into farts, so what is it exactly?") until I discovered the concept and word of "eproctophilia" on a Wikipedia page. It was a relief, because this "atypical interest" having a name meant I wasn't the only one in the world with it.