Loyal best friends are hard to come by, so when you come across one who sticks around and makes every place feel like home, it's a good idea to hold onto them tightly. Over the years of surviving my own "sibling-like" best friendship, I have noticed a few things that set it apart from others. Here are 30 signs that your best friend might secretly be your sibling.
1. You spend more time at the other's house than your own
2. You have ZERO boundaries
3. Their family is basically your family
4. You know exactly how to push their buttons
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5. Half the clothes in your closet are theirs
6. You walk into each other's houses without knocking
7. You know each other's garage codes

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8. Your fingerprint is the second one on their phone
9. They know the passwords to all of your accounts
10. You mess with them CONSTANTLY
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11. Sometimes you would rather hang out with their parents than them
12. You know exactly where everything is in their house

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13. You raid their fridge without asking
14. They don't have to be home for you to be in their house
15. You've been on vacation with their family
16. You know all of their fast food orders
17. You have all of their family member's phone numbers saved
18. Their parents aren't afraid to reprimand you
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19. Your siblings mess with them just as much as you do
20. You're not afraid to be absolutely disgusting around one another
21. You swear you're telepathic
22. You can hang out with their siblings without them
23. They're invited to all of your family functions
24. You have tons of traditions together
25. You're not afraid to tell them when you disapprove of something
26. You could share literally anything
27. You have more ugly pictures of them than normal ones

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28. You bicker over little things, but get over it 30 seconds later
29. You can sit in silence with one another and be completely comfortable
30. You know that no matter what, you'll never lose them
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