Lately, Mio has been feeling the decline in her and her husband's physical strength. Their nightly activities have also become bland. To regain her strength, Mio started doing light exercises and stretching. While stretching, she noticed her son in the hallway. She called him over to stretch together. Her son became aroused seeing his mother bouncing on a balance ball. Mio noticed her son's arousal. That night, unable to stop thinking about her son's arousal, Mio masturbated in the kitchen. Her son saw this…
