饱食无数美女的阿辉，为了一直未能遇上一百分的女孩而烦恼。琪琪生日，众人为她搞了一个生日派对，在派对上，三人发下毒誓，绝不会对阿琪起色心。一天，突然出现了一名一百分女郎，原来她是琪琪的表姐，马泳雯。她亦成了阿辉的梦中情人。可是，她有着崇高的理想，更於不久后便要到外国留学，二人难舍难离。此时，泳雯告知阿辉，原来琪琪一直对他有意……另一边厢，阿健见阿辉情场得意，自己也忍不住，到处留情，却尝尽了前所未有的性爱乐趣。

A Hui, who has eaten countless beautiful women, is troubled by the failure to meet a hundred percent girl. Kiki’s birthday, everyone made a birthday party for her. At the party, the three men issued a poisonous oath, and they would never have a heart for Aqi. One day, a one-hundred girl suddenly appeared. It turned out that she was Kiki’s cousin, Ma Yongwen. She also became A Hui's dream lover. However, she has lofty ideals, and soon she will go to study abroad, and the two will be difficult to leave. At this time, Yongwen told Ahui that Kiki had always been interested in him... On the other side, Ah Jian saw A Hui's feelings of sympathy, and he couldn't help himself. He was eager to have sex, but he had tasted the unprecedented sexual pleasure.