My Stepmother is a Lewd Robot; Incestuous Sexual Encounters in Heat; Hitomi Madoka; CESD-587

In the distant future, the number of children who haven't experienced the warmth of their mothers is increasing, prompting the government to develop mature female robots. Afterwards, Hitomi Madoka, a robot stepmother living in a certain family, experiences a sexual breakdown during self-repair. She attacks her son who is masturbating, frantically licking his penis and engaging in incestuous sex in a riding position until she's thoroughly satisfied!