Mihi was caught masturbating. Her son-in-law says, "Mother-in-law, you're unsatisfied, aren't you?" and embraces her. "Let go," she refuses, but once he thrusts his huge cock into her, Mihi loses control and comes repeatedly. "Don't tell our daughter about us," she says, but she becomes addicted to her son-in-law's massive cock, unlike her husband's.