Yuki Miyama, 46 years old, a full-time housewife. Her outstanding body shape, which does not look like a mother of two children, is thanks to her 15 years of swimming until she graduated from university. However, Yuki joins a gym to resume swimming after a long time, which changes her life... After joining, I learned that gyms with shower facilities tend to be hotbeds for infidelity. Not long after, Yuki experienced her first affair with a gym mate and became completely addicted to sex with other people's dicks. However, as his infidelity escalated, he started to become concerned about the gossip inside the small gym...While searching for the perfect crime, he ended up appearing in an AV. Check out the sensual athlete sex of a swimmer's wife who has blossomed in her 40s.