Actually, ever since I first started teaching at this class, I had been interested in Rin, the girl with the biggest breasts in the class. This summer, when the school uniforms were changed, I finally couldn't suppress my desire to see her breasts and made a move on her. And in this classroom after school, where someone might come... And even though I knew it was wrong, the sense of guilt took away my reason and I wanted her. And it seemed she couldn't forget about my dick either, and she kept asking for my sperm over and over again, for a total of 12 creampies...!