1. They will always do your hair for you.

2. They aren’t afraid to tell you if you look ratchet.

3. It’s like having two closets.   

4. They are the only other person who understands your parents. 

5. They are always there at awkward holiday events.     

6. They are best friends that you are stuck with for life.      

7. Your parents are always obligated to buy two of everything to keep it even.

8. They are always around when you need to vent.     

9. You don't have to worry about picking a maid of honor. 

10. Sisters are built in best friends you can't get rid of ever.