Cant remember the title

It was originally on mrm but got uploaded here as well. The two guys are dating and in school, its pwp, they have sex all the time, the uke is always horny so at one point he started to feel scared that his boyfriend will leave due to how horny he is, so he starts avoiding him a bit and they dont do it for like a week.
The art is very soft?(idk how to explain), theres mulitple covers but i remember one where the uke's mouth is O shaped, the uke has black hair and i remember a scene where they did it on thr schools roof top during lunch while there were people around so they had to be quiet