Not rated, but would probably be:

PG-13-Some Crude Humor

There is one scene where the main character is shown completely naked in the bathroom (with his genitals covered) and once again when he jumped out the back window.

The main character emerges from the bathroom carrying a jar of vaseline and it is -implied- that the other main character believes he was masturbating.

There is a "sex doll" that they fill with water at one point.

The main character believes he has murdered one of the characters, and there are several scenes that involve dragging a body around and attempting to hide it.