A woman came in who was a little worried about her legs being too exposed and cold, while her upper body was a warm-looking knit that perfectly protected against the cold.Her name is Rio.She seems to watch AV often, and she seems to especially like sex between teachers and students who have a hierarchical relationship. He seems to have a temperament.Rio has one problem.It's about boobs.Her breasts are modest in volume... I don't really care, but instead of that, she's a nipple that makes a strong and assertive erection.Even though she wants to serve the man, the man gets excited by the nipple that she insists on and sucks on the nipple first, so there are many cases where it is no longer possible.I'm sorry to trouble you, but in this work, I will focus on blaming such nipples as I proceed, so I would like you to fully enjoy the nipples of "Nipple Ikiri Oppai Norio", especially those who like nipples.