There are a lot of scenes where you can see the main character in bed with girls, implying they just had sex or they are about to do it. Altough this is brief and shows no nudity.

At the beginning of the movie you can see the main character naked at a police car. But his penis is covered by his hands while he's narrating the story, so you see nothing explicit.

There are a lot of sexual references and mentions of sexual experiences made by the main character friends throughout the whole movie

There is a persecution scene, implying a guy wants to fight with the main character but nothing graphic is shown because he gets saved.

At the ending, a guy invites the main character to fight at the party, people are excited and encourage them to do it. Nothing really violent is shown because a friend of the protagonist saves him before anything happens to him

It is implied that one of the movie characters is very dangerous and somebody "You should not mess around with". Presumably, he's related to drug dealers, but this is absolutely not explicit because it's just a supposition

At one of the main character friends Sub-Plot it is implied he was atacked in the face with tacks, this is meant to be a joke

A lot of spanish language cursing from México is used throughout the whole movie. Most of the curse they do would be translated as "F--k" in english, sometimes "M-----------" or even "Sh-t"