The endless hip thrusts and ejaculation experienced by my friend's mother, honed through training in the sports club, resulting in a continuous, ecstatic, and delirious sexual experience. (Usami Mizu VEC-722)

The son's friend is a muscular, carnivorous guy in the sports department. Held tightly by taut, steel-like biceps, her rationality crumbles. The endless thrusts of his toned hips send her climaxing repeatedly, her cunt moaning. Not only does she reject this forbidden relationship, but the mother is also being corrupted into a beast…