Ok, so...I can EASILY say that Boku no Omawari-san is the BEST bl I ever read. Yeah, i know, he's a side story, but is best than the principal story. I read three times this manga, and i will always think is awesome.
Boku no Omawari-san has pinches of humor and romance, mixed with an awesome art and good sex-scenes. You can love the characters a lot, Seiji is really humorous and you can always laugh with him, and Shin is a big dog that you can love see in every page.
The manga isn't about sex, is about a relationship, and you can see it in every page as time goes by, you can feel the love they have for each other, and you heart became warm with this. The form they look, and blushes, and likes, and care about the other is just awesome. Even if this haven't explicit sex scenes, or maybe any, it will be easily one of the bests.
