The film depicts the strange live-in lifestyle of three people: Yasuko, a 14-year-old girl who insists that all things are equal and sex is no exception, Boku, a university student, and Ryosuke, a photographer for Binimoto. M, a girl who was popular for her photo books and videos at the time, plays the role of the girl who lives a carefree life, and is flanked by other celebrities.

夫との甘い毎日を送っている冴子のところに、まだルンルン気分が抜けきらぬ香が、未婚の母・利江を連れて現れる。学生時代からの仲良し3人は、早速銭湯で旧友を温めあうことに。ところが、香がロストバージンを決意したことから、その関係は微妙なものに…。