けいたとあきらは悪友同士で互いに人妻のセフレが出来る。「俺のセフレの方がエロいぞ」と互いにセフレを自慢する。どちらのセフレがよりエロいかを巡って口喧嘩になってしまう。実際に今度会わせてみろという話になり、互いのセフレ同士を戦わせることになる。
Keita and Akira are bad friends and can have sex with each other as married women. “My saffle is more erotic” and boast of saffle to each other. They end up quarreling over which saffle is more erotic. In fact, it becomes a story that let’s meet next time, and each other’s friends will fight each other.

– JavGG.net