"Wow, you two look a lot alike."

It's something you hear a lot. You look like twins to some, but others question if you're even related.

You speak the same thing at the same time. 

A friend asks a question and you each answer at the same time. They definitely weren't expecting that.

She steals your clothes whenever humanly possible.

And she has never ever washed them or put them back where she found them.

When you're sad and she's not around, you go to her room and wait until she's home. 

You might send a text: "Pls come home. I'm sad."

It seems like everything unspoken is still understood.

It's not necessary to talk before she knows how you're feeling. Just one look gives it all away.

You play-fight for 3 minutes, and someone ALWAYS gets hurt. 

Your mom told you this would happen, but you didn't listen again.

Her friends have become your friends, too.

When you invite her to Chipotle, you make sure they know they can come too.

She's kinda your sister, kinda your daughter, kinda your best friend.

The relationship is a little messy but you know that neither of you would make it without the other.

You have your own language. 

Any significant others must learn it if they want any chance of understanding what you're saying when you're together

You don't tell her you love her nearly enough.

But you do love her, dearly.