Okay i don't remember the name of this manga, so if something comes to your mind please leave the name. Manga categories were propably yaoi and smut? Story went something like this there was this really popular and hot guy and this other kinda depressing dude, they were in college. The depressing dude confess to his love to popular one and they started some kind sex relationship, popularl one is kinda sadist and made him do embarrassing things. I don't remember anything else.

Is it the 5th Chapter of Scarlet by Madarame Hiro? Link down below. I don't know how to insert it.

https://www.mangaupdates.com/series.html?id=12846