就算仔女都大個晒,阿媽同老公都仲係好要好。對仔仔嚟講,阿媽係朋友話佢哋後生又令人羨慕嘅阿媽。喺某一日,仔仔偷睇咗阿媽同老公夜晚嘅性愛,對阿媽產生咗色慾,然後就覺得好燥。嗰晚,仔仔趁阿爸出咗去,同阿媽講:「我睇到阿媽同阿爸做嘢,然後就興奮咗」,然後仔仔就襲擊阿媽。阿媽拼命咁想走,但係都唔夠成年嘅仔仔勁,最後都俾佢強姦咗。而且仲要俾仔仔條賓周搞到高潮…