Mother -in -law is fastidious to me. Even if he told his husband, he was useless because he was his mother. The father -in -law pretended not to know. Every day I am tormented and shed tears. One day my husband went on a business trip, I came up with an idea when I witnessed my husband's father masturbating. Okay. Take revenge by sleeping on my father -in -law since that day, although my mother -in -law was near, the revenge plan began everywhere in the house.