Some brief frontal and back nudity.

Frequent sexual references.

One scene involving a character masturbating. We see him moving his hand in his shorts and looking as if he is close to orgasm. However, he is interrupted and the scene features no nudity.

A man suggest that he masturbates and he denies this however; he suggests that they do it. Later; we see them adjusting their pants; which implies this.

One scene implying a woman performing fellatio on a man. He moans with pleasure then climaxes, and his friends (who are with him) start to laugh.

There's a sex scene where bare breasts are shown..

There are also a lot of butts shown.

And a brief sex scene.