There is a sex scene between a couple early in the movie. Breasts are shown in girl-on-top scene.

Some flirting between a man and a teenage girl (McGowan), the man goes to join who he thinks is his wife in the shower to find the teenage girl showering naked, nothing is shown as she is still wearing a top.

A girl kills a boy that tries to rape her. She then disposes of the body.

No smoking at all, no drugs.

Mild alcohol usage is implied (no actual drinking shown): An underage girl holds a bottle of champagne to celebrate with a friend. A few times people have some wine in a restaurant or at meals at home. Again, the actual drinking is never really shown.