Due to a burst water pipe at home, Koji had to stay out for several days. During this time, he stayed at his friend Ichiro's place. Secretly an ass fetishist, Koji quietly rejoiced in being able to spend time with Yuu, Ichiro's wife, who has a great butt... Then, by chance, he caught sight of Yuu pushing out her ass while wearing sexy lingerie. With Koji constantly aroused from excitement, Yuu smiled and asked if he could apply some beauty oil for her…
