Yatamomo :P
lover boy...that part is still raws tho. on the translated chapters they haven't had sex yet
https://webtoon.bamtoki.com/사랑하는-소년
from chapter 14 and on its pretty much all they do
oh and junjou romantica & sekaiichi hatsukoi. I think every chapters have at least one sex scene. so yeah
Ai to yukobuo no gakuen de
Kuroneko serie!
Nice one!
Haru wo daite ita
I'm liking for a yaoi manga where they're fucking all the time