KSBJ-212 My son's daughter-in-law was a nasty woman at heart. Harumi Kurokawa

My son's wife, Harumi, who brings in a man while his son is away and commits unfaithful acts. My son doesn't know, but she's a nymphomaniac at heart. The brunt of it has come to reach me as well. At first, I enjoyed showing off acts with my affair partner and showing off my masturbation, but the act escalated and finally came to my bedroom at night.