The first yaoi I saw was Junjo Romantica because the first episode appears in my youtube recomendations, at first I was very confused and very shocked, but then I loved it. It was like love at first sight. The problem was that when that happened, I had 11 years old LMAO (im not proud to say that.). But before that happened, I already had contact with yaoi from other places (Sonic fandom...). And when I was a little child I used to think that in the cartoons some duos of friends (male and male obviously) were couple for some reason.
Idk Im curious about how you guys discovered Yaoi.