[Karakuri Korokke] kozukuri jisshū wa jitsubo to suru kimari desu (Baby Making is going to be practiced with your own Mother)

A mother with voluptuous breasts and glasses invites her son to practice baby‑making, beginning with intimate oral and vaginal acts that quickly become passionate and relentless. The story follows their escalating encounters, highlighting the mother's insatiable desire and the son's eager, excited participation as they explore every position to satisfy each other. With every thrust and climax, the narrative builds toward an intense, immersive experience of incestuous passion and impregnation.