I remember reading yaoi manga (not sure if it was oneshot or not..) and it was scene on rooftop. Main chara (I think he had black hair) saw other boy (THINK he had blonde hair) sleeping on his position. Main boy wanted to prank him but other woke up and wrapped his legs around main chara throat/neck and may have told him to suck him..
A while after I remember when other his friends came on rooftop and they talked. Boy was standing behind short wall while talking. I remember blonde took his pants off when he still was talking and well, things became little naughty?

Please help! 🙂

Should be chapter 9 from Sweet (INOMOTO Rikako) =3

ay, that one!!!! Thanks!