Ever since my wife became pregnant, we've been fighting constantly. Murasaki always takes my side during those times. She's so youthful and stylish, I can't believe she's my mother-in-law. Perhaps because my wife's pregnancy has left me sexually frustrated, I can't help but stare at her breasts and ass. One night, while I was masturbating, she came in behind me without knocking... Her devoted hip movements, so different from my wife's, were irresistible...