[JUR-573] A friend of mine boasted that he had sex with his wife three days a week, so I ended up cuckolding his wife by cumming inside her four times a week, a total of 20 times. Marina Shiraishi (Censored)

"Lately, I've been having sex with my wife less and less. Now, I'm lucky if it happens once a week..." Shinji reunites with his college friend, Yuji. Yuji's wife, Marina, whom he married a few years ago, is not only beautiful and charming, but also sexually active, and boasts about her, saying, "Marriage is great." Shinji, frustrated by his insatiable sexual desire, secretly visits Marina and forces himself on her. Marina is captivated by Shinji's uncontrollable sexual prowess...