The son's wife, who lives with him, has a voluptuous, sexy body. The son and his wife are constantly flirting with each other, unaware of the Kokoro of their parents, who are concerned about her going around the house without a bra. One day, the father-in-law loses his sense of reason when he sees his wife's breasts, wet from the rain. His wife shakes her sexy breasts and beautiful ass as he violates her! Hiding from his son, he trains her to cum inside on dangerous days! During the day when his son is not around, she is his father-in-law's personal semen toilet. The father-in-law's crazy lust escalates...