Best friends are, well, the best. However, there is one qualification that separates the best friends from the best friends forever, and that is their family. Once you are an honorary member of the family, that friend just can't get rid of you anymore. You're blood now.

Here are 27 signs you are crazy close with your friend's family:

1. You know each member of the family very well, including aunts, uncles and cousins.

2. You have had a siblings fight with the brother and/or sister of the friend.

3. You are often present at family dinners.

4. You've probably seen them on holidays, too.

5. Before you could drive, you relied heavily on the friend's mom to pick you up for the movies or whatever event, and you are eternally grateful for her services.

6. You walk into the house without knocking.

7. Sometimes you arrive and the parent says, "I didn't know you were coming over," but they weren't mad about it, and should probably be used to it by now.

8. You've talked to your friend's mom about your drama, and the conversation typically lasted hours.

9. You're on a first-name basis with the parents.

10. You've attended family vacations because, well, you're family.

11. You probably spent more weekends at their house than your own.

12. You have a toothbrush in their bathroom.

13. Your parents and your friend's parents gossip about you.

14. Your friend's mom usually knows more about your life than you do, based on what your mom talked to her about.

15. They will yell at you if you're being out of line and it's not weird at all.

16. They are as upset about you leaving for college as your real family.

17. You've hung out with the parents without your friend being there multiple times.

18. You know where everything in the kitchen is.

19. You have inside jokes with your friend's family.

20. Your friend's parents know embarrassing stories about you and aren't afraid to bring them up for a good laugh.

21. You text your friend's mom.

22. You've received birthday and holiday gifts from them.

23. You've treated the siblings like your own.

24. You've driven the younger siblings around, helped them with homework, and fed them.

25. You really are a member of the family, through thick and thin.

26. You can't imagine growing up without an extra set of family members.

27. You wouldn't have it any other way.