18 Milestones All Friends Must Go Through To Become Best Friends

If you haven't peed together it isn't real.

1. Leaving a party or a club early to go home and eat drunk food.

FOX

Because you know you'll have more fun when it's just you two and a pizza. (Maybe two pizzas.)

2. Getting drunk by yourselves and ditching the party you were meant to go to together.

NBC

Usually skipping straight to the pizza stage of the night.

3. Sharing a toilet cubicle.

Twitter: @bextree

There are some times when the gossip is so urgent, the conversation so deep, or the advice so necessary, that you can't possibly stop talking in order to pee. So you must pee together.

4. Telling them your grossest story.

NBC

Usually involving some kind of bodily fluids. And when you're done, they'll tell you an even grosser one back.

5. Receiving an emergency phone call from them in the middle of the night.

TLC

Emergencies could be anything from they just saw their ex snogging someone else, to actually serious stuff, to they were drunk and just really missed you.

6. "Permanently borrowing" an item of their clothing.

E!

You borrowed it once when you had nothing to wear for a night out, and then you took it home to wash it, and for some reason it just hasn't made the journey back to their house yet.

7. Telling them your meanest thoughts about somebody else.

BBC

And knowing they won't judge you for being a total bitch.

8. Committing to watching a series together.

Broadway Video

And not secretly watching episodes without them, or if you do, at least trying to lie about it.

9. Telling them they look great, when really they've looked better.

Touchstone Pictures

Because you know they need a pick-me-up and you know exactly how to compliment them so they'll feel good about themselves.

10. But also occasionally telling them they look like utter crap and they should probably have a shower.

New Line Cinema

Knowing you can laugh at their bad haircut, but then say something about their cheekbones that will make them feel better.

11. Taking their side in an argument you didn't need to get involved in.

Disney

Even if you're not entirely sure what's gone on, you'll still defend them forever.

12. Reading whole essays' worth of important text messages they've got from their love interest, and analysing their hidden meaning.

Paramount Pictures

And then helping them craft the perfect response.

13. Sitting next to each other, not talking, just playing on your phones.

NBC

Because if you're not comfortable with complete silence you're not best friends.

14. Proper belly laughing at a joke that only you two would understand.

Warner Bros

Probably the most in of in-jokes that you can't even remember the origin of.

15. Hearing each other have sex.

ABC

And putting up with it at the time because you know they really needed to get laid, but then absolutely rinsing them for it for the rest of eternity (with impressions).

16. Doing something you don't really want to do, for them.

MTV

Whether that's going to a boring party because someone they fancy is there, or cancelling your plans because they're sad and want to hang out.

17. Giving them amateur medical advice.

FOX

You've looked at that weird mole for them and told them which birth control pill is your fave. And then hopefully told them to go to a doctor.

18. Having a three-hour phone call about absolutely nothing.

Fox Searchlight Pictures

Just because you missed each other.