『最近、妻との回数が減ったんだ、ちょうどお前がウチに来たくらいから…。』大学時代の友人、雄二と再会したシンジ。数年前に結婚した雄二に嫁自慢をされて自宅へ招かれたのだが、美人でしかも性欲旺盛な友人の妻・加奈を前にして、シンジはある企みを持つ。それは、加奈に夫よりも性豪であることを分からせるというもの。そして密かに友人宅を訪ねたシンジは加奈を押し倒したのだ。抵抗する加奈だったが、夫を遥かに凌駕する絶倫と容赦ない中出しに何度も絶頂してしまい…。

"Lately, the frequency of sex with my wife has decreased, starting around the time you came to my place…" Shinji reunites with his college friend, Yuji. Yuji, who got married a few years ago, boasts about his wife and invites Shinji to his home. Faced with his friend's wife, Kana, who is beautiful and has a strong libido, Shinji hatches a plan. He wants to show Kana that he is a bigger lover than her husband. Shinji secretly visits his friend's house and pushes Kana down. Kana resists, but she is brought to orgasm again and again by Shinji's incredible stamina and relentless ejaculation, which far surpasses that of her husband…