A son who was distracted by his stepmother Asumi's 108cm H-cup bust and couldn't concentrate on his studies, causing him to repeat the year, suddenly attacks Asumi while she is in the bath. He vents his anger on her breasts, which caused him to repeat the year, by squeezing them and forcing her to deepthroat and cum in her mouth! Feeling responsible, Asumi makes amends by giving her son a titjob to satisfy his sexual needs. Furthermore, in order to pass her son's credits, she seduces the teacher and has sex with him, her ripe body shaking! In the end, he cums over and over again in a loving incestuous relationship to make up with his stepmother who cares about him!