My two sisters are some of the biggest blessings in my life. While I am 11 years older than my smallest sister (who is fabulous!), my other little sister is only 2 1/2 years younger than me. If you have a sister close in age, you know of the special bond that forms between two sisters. To celebrate sisters, here are 10 things you know to be true if you have a sister (or best friend) who is close to your age, as told through one of my sister's and my favorite shows, Pretty Little Liars.

1. You can communicate more with facial expressions than with spoken words.

2. You have an insanely honest built-in personal stylist and fashion critic.

3. And your wardrobe is doubled. At this point you don't know who bought what, yet you still have distinct tastes.

4. When someone messes with you, all you have to do is unleash the sister.

5. They know your weird habits, but don't question why you have them.

6. You can cry with no judgement.

7. Your inside jokes have reached a level of complexity that outsiders will never comprehend.

8. Car rides are always loud because you always harmonize shamelessly to your favorite tunes.

9. They make breakups more bearable by keeping your busy.

10. You have an automatic best friend to do things with for the rest of your life.