1.
It is an unspoken rule that if she hates someone, you hate them too. No questions asked.
2.
And if either of you faces relationship drama, the other is obligated to listen and provide detailed analysis.
3.
You know that there are some problems that can only be solved by heavy drinking.
4.
Of course, you know exactly how to deal with each other when you get silly drunk.
5.
If something new or weird happens in sex, you will discuss it in revolting detail.
6.
You share the same bitchy thoughts that you could never tell anyone else.
7.
You know exactly how to give each other an ego boost when you need it.
8.
Nudity doesn't phase you.
9.
You can describe the "vibe" of someone you've just met, and she'll know exactly what you mean.
10.
Talking of which "girls who just get on better with guys" are the enemy.
11.
You have a special we-are-leaving-immediately-literally-right-now look.
12.
Sometimes, when you're out, you have to share a toilet cubicle because you've got too much gossip to get through.
13.
You can be horrendously mean to each other and know it doesn't matter.
14.
If she wants to bitch about her family, you have to join in. And if she changes her mind five minutes later, so do you.
15.
If one of you giggles, it's a matter of moments before the other one loses it too.
16.
You've probably ranked all your other friends based on hotness.
17.
You also regularly have conversations that start, "If you were him, what would you start doing differently?"
18.
Sometimes, the only thing that'll make you feel better is climbing into her bed uninvited and snuggling all night.
19.
Talking of meals, you've definitely shared a secret meal before/during/after a night out.
20.
Whatever the other person does, you don't judge it.
21.
You know each other's romantic histories better than you know your own.
22.
You're over-the-top delighted when anything in life goes right for her.
23.
And you will defend her without even knowing what she's done.
