Do whatever you want with your mother who climaxes quickly, no matter where you go

Ayako struggles with her only son's pranks every day. When his son sees Ayako's reaction, he gets carried away and escalates the prank into a pervert. Ayako tries to make her stop by scolding her, but she reacts sensitively to her son's caressing, knowing the acupressure points, and is unable to resist.