The first story, Mao's boyfriend invited his best friend to his house. He was the one who introduced her boyfriend to her. But her boyfriend had no idea that Mao was his best friend's ex-lover. And then when he met Mao again, her beautiful body and face made him unable to control himself, he used the excuse of buying cigarettes to go to the bathroom to touch her body. At night, he went into their room and had sex with Mao right next to her poor boyfriend. The second story is about two best friends and their husbands sitting together drinking. Mao's husband kept talking about how big his friend's dick was, which made Mao very curious. When her husband's friend went to the bathroom, she sneaked over and "tested" how big it was by making him ejaculate to its maximum size. At night, she sneaked into his room and made him "compensate" for her because only he had enjoyed it earlier ~