OFKU-080 — With My Wife's Mother, Hiding From My Father-In-Law... Mirei Kyono (44)

My wife left for a 3-day, 2-night hot spring trip with a friend. My wife's mother is 44 years old and in her prime. She is a young, charming, and feminine woman. My mother-in-law has a slim figure but a nice amount of flesh, and I have felt sexual desire for her for a while... My wife's family treats me like their real son. However, I have evil feelings toward my mother-in-law and I want to somehow get her in the mood...