YST-317 My younger mother, who remarried my respected father, was a devilish woman who controlled my ejaculation. - Hamazaki Mao

Recently, the son is starting to fear meeting his stepmother, who has become a part of the family. Whenever she has free time, she strokes her son's dick vigorously, bringing it to the brink again and again, and enjoys seeing his face in agony. Moreover, she has forbidden her son from masturbating, and made him make an unreasonable promise that he will only ejaculate in front of his stepmother. After being toyed with again that day, he is embarrassed by his stepmother's violent hip movements as she straddles him, treating his raw dick like a tool, and finally gets permission to ejaculate, when she pours a huge amount of semen into the depths of his vagina.