Misa, a housewife living with her husband and adult son. She starts masturbating after reading an article in a magazine about how sexual activities can keep one young. Misa has a squirting habit and wets the tatami mat. Her husband notices the wet tatami and realizes what she's been doing, then has sex with her for the first time in a while. Their son, returning from work, accidentally sees his parents' act. One day, her son is drinking alcohol in the living room. Misa is keeping him company. The drunk son mounts his mother and reaches for her crotch. Misa squirts from her son's fingering…
