Mother-in-Law's Private Lessons

Lin Hao has been married for two years, but in bed he only knows how to thrust away, never once bringing his wife to climax. Late one night, his wife texts her mother: "He's still the same." Her widowed mother, Zhao Yaqin, shows up at their door and says just one thing: "Don't call me mother-in-law—call me Mommy." She starts from the knees, teaching him how to touch with his hands, how to lick with his mouth, how to drive with his hips. Outside the crack in the door, the wife watches her husband being taught for the first time—and finds herself getting wet first; even her younger sister slips a hand beneath her own skirt. It turns out the mother-in-law isn't sacrificing herself—she's taking a man who never understood her daughter and molding him into something that belongs to her.