I'm a masochistic man who was seduced by a female teacher who likes younger people because of his goosebumps dirty talk and harsh nipple kneading even though he had a girlfriend.

Mr. Sato, who is usually neat and intelligent, turned out to be a nipple-kneading slut...Mr. Sato, who was devoted to his students, suddenly changed into a younger student whom he loved...I, a scumbag masochistic man whose sensitivity was heightened by the goosebumps dirty talk that I could feel in my ears and the crunchy nipples, fell into a slut technique, and I ended up cheating and ejaculating over and over again with my girlfriend and the teacher's erotic technique...