Yuki Miyama, 46 years old, full-time housewife. The outstanding body line that does not look like a mother of two children is thanks to swimming, which she continued for 15 years until she graduated from university. However, joining the gym to resume swimming after a long time changed Yuki's life. When I joined, I learned that gyms with showers tend to be hotbeds of infidelity. Soon after, Yuki experienced her first affair with her gym friends and was completely captivated by other people's stick sex. However, as the infidelity escalated, the gossip in the small gym began to bother me ... While searching for a perfect crime, he ended up appearing in AV. - Take a look at the sensual athlete SEX of a swimmer wife who blossomed in her 40s.