SPRD-1175: Mother-in-law Momoko hears her daughter's refusal, then comforts son-in-law

Momoko overhears her daughter and son-in-law talking about their lack of sex for half a year, and she is shocked. Later she finds the son-in-law masturbating and, as an apology, uses her hands and mouth on him. When her husband goes out to drink, the son-in-law sneaks into her futon, and despite her initial refusal, her body responds. She accepts him and climaxes with him, all while staying quiet.