Help?

I suddenly remembered a manga I read but I cant find it no matter where I look.
Its about how the main character meets an old friend of his from high school only to realize that friend is now a huge BDSM freak. The friend ends up getting the main character involved in the BDSM world as he blames him for getting him into it due to the main character groping him once back in high school. I cant remember much else about it though fjsgsj
The only other things to note was the main character has black hair while the friend is blonde with glasses. And that even though it's a BDSM story it has a comedy aspect to it too
If anyone can help me find this, thatd be great, ty (⌒▽⌒)