Ryouko, longing to reconnect with her husband after a long time apart, enjoyed having her big ass admired and felt emotionally fulfilled. But her husband, exhausted, fell asleep right away. Simply being desired wasn't enough, and ending things unsatisfied left her feeling restless and distressed. Determined to clear her mind, she began doing yoga and using a balance ball. One day, while exercising, she got a cramp and called out to her son for help. He stretched out her leg and began massaging her for relief. Unexpectedly, she became aroused, wetting her panties, and secretly started masturbating—only to be caught by her son...