Multiple instances of a brother wanting to have sex with his sister.

A boy pretends to be his sister in order to give his best friend felatio.

Four blow jobs

A young man is seen watching porn

A young woman is shown riding a man whilst another man spies on them

A man and woman are shown having anal sex

A man and woman are having sex

a threesome

If you can think of a "dirty word" it's probably in the script.

Cocaine, Marijuana, alcohol and tobacco use.