The father-in-law longs to see his grandchild, but his son struggles sexually. Growing increasingly anxious, the father-in-law becomes more aroused by the situation. Faced with his daughter-in-law's voluptuous, soft body, he carefully instructs her in titty fucking to seduce her into nighttime intimacy. He also repeatedly performs aphrodisiac massage to prepare her body for pregnancy. When his son's condition shows no improvement, the father-in-law can no longer restrain himself, declaring, "I'll get her pregnant myself," and forcefully begins creampie sex. Until his son's busty wife finally conceives, the father-in-law relentlessly continues to creampie her—leading to a shocking turn of events.