My first yaoi was Sekaiichi Hatsukoi. It was really weird because I was just bored then I started searching amvs on youtube until I saw an amv of the said anime. Then, I tried watching it then I was already hooked. I don't even understand but it just gave me butterflies and I was giggling and making a lot of horrible sounds (sudden laugh, sighs etc......
I don't remember how old I was, probably sometime near the end of high school when I had my own computer, or how I first found out about yaoi. But I do remember Sekaiichi Hatsukoi being my first yaoi. I watched the anime on Crunchyroll before I ever tried reading it. Now that I think about it, I don't think I've ever finished reading the actual man......
Photo from Dicks Everywhere *uncensored*