來到十五歲,茱莉和死黨愛露迪這年的暑期大計,包括「失身」。茱莉覺得和要好的男同學上床太別扭,猶豫間,死黨搶先一步。想不到失身容易,感情卻跌跌撞撞,很難搞。沒有《美國處男》的左閃右避胡胡鬧鬧,幕後亦沒有黑手來指指點點亂搞噱頭。法國的半熟男女,態度開放,也絕對忠於自己:講十五歲的話做十五歲的事。一則青春的宣言,你我想知、要知,或者都有共鳴的真感覺。End of high school, beginning of summer. A group of friends spend most of their time together, but little do they know that each and everyone of them has set their mind on pursuing one goal, the goal of every teenager: doing it for the first time. And sometimes the line between friendship, love and desire is really thin especially when you're 15.