Responses
sorry, ff
i would say second couple of Leopard Hakusho, but the student worked as a club host and the student and teacher fought each other a lot
Nope, it was really short, maybe a few chapters and also the drawing was a little bit newer
Finally found it after MANY years
http://www.mangago.me/read-manga/zantei_boyfriend/
I hope you'll like it
I can't remember we'll but it's about sensei and a student. I remember the student being so flashy and all maybe he worked as model for part time. There were a scene where one of them was talking with girls and the other one was jealous and after that they had sex. I really don't remember anything else. Also I think student had blonde hair and sensei dark.