Sex=Love^2

All Kumiko wants is to become a teacher; however her father is dead set against it. He is giving her one chance to prove herself as a teacher before forbidding her from pursuing this career forever. Meet her newest student, Ryu-kun. This student has NO desire to LEARN anything from his tutors, rather he is an expert at teaching THEM about...SEX?! NOTE: Originally the story was released as single short story, but in later issues of Cheese! since more stories were released.