
this is one of the first ones i remember reading http://www.mangago.zone/read-manga/chikan_diary/

http://www.mangago.zone/read-manga/abarenbou_kareshi/
I really started with DJs of attack on titian but this was the first non dj yaoi. It is adorable!

My first was Sumomo http://www.mangago.zone/read-manga/sumomo_harada/
I don’t know why (but I liked the story concept) and I don’t remember why I still read a bl

For me it was: Fake and Eerie Queerie.
http://www.mangago.zone/read-manga/fake/
http://www.mangago.zone/read-manga/eerie_queerie/

I think I might have read a few before these, but I only got into yaoi after reading these.
http://www.mangago.zone/read-manga/nirameba_koi/ http://www.mangago.zone/read-manga/konya_mo_nemurenai/

I watched Junjou Romantica by way of a Random Anime button when I was a freshman in high school and I got hooked immediately. My first yaoi manga (first manga in general actually) was Honto Yajuu. It's still one of my absolute favorites and I re-read it from time to time. It's been 8 years now, so it's pretty nostalgic for me really, same for Junjou Romantica and Sekaiichi Hatsukoi ^^
What were your first Yaoi? I'll like to check out the stories that had people starting to become interested in Yaoi. Mine was Viewfinder.