Sometimes it just happens, and you get that once-in-a-lifetime kind of friendship. They’re more than your ride-or-die, stronger than an everyday friend, and there for you, well, ’til the end. Will your friendship stand the test of time? Here are some telltale signs, some funny, and some just really, really, true:

SHE ACCEPTS AND LOVES YOU FOR WHO YOU ARE

She knows who you are, embraces it, and loves it. She’s not embarrassed by you–in fact, you both probably get a little louder and a little braver when you’re together.

YOU CAN ALWAYS LAUGH

In times of trouble, she can always make you laugh (or at least, smile), and vice versa. You know just what to say to the other person to make their day just a little bit brighter.

YOU’RE NOT REALLY SURE WHETHER THAT SHIRT IS HERS OR YOURS

You know, that shirt. The shirt you both argue about owning–when neither of you know whose it actually is. It looks great on both of you, though, so you let it slide.

TOUGH LOVE ISN’T SO TOUGH

When it comes down to it, neither of you is afraid to give the other your honest opinion if it’s in their best interest. You both know that the other’s success and long-term well-being is more important than making her feel really good now.This makes you more like family than friends, even if tough love doesn’t always feel the best.

YOU HAVE EACH OTHER ON FIND MY FRIENDS

…Or, for you Android users, something similar. You both are accustomed to knowing where the other is at a moment, even if they’re studying abroad and you’re back at university. You’ve both gotten used to the random screenshots the other sends you of your little blue dot and an accompanying text:”I see you!!” or, “Shouldn’t you be at class?”

YOUR TIME-HOP IS FILLED WITH EMBARRASSING MOMENTS OF EACH OTHER

She won’t let you live down that time you posted a million pictures of your celeb crush to her Facebook wall in the seventh grade, and you definitely aren’t letting the photo booth pics in the Apple Store go without a quick reminder to her. At this point, if your friendship wasn’t keeping you together, the reminder of your awkward years as blackmail definitely is.

YOU’VE PICKED UP HER QUIRKS

If her conversational words and catchphrases have started coming out of your mouth without a hint of sarcasm, she’s probably your bestie for life.

What signs of a life-long friendship did we miss! Share in the comments below.