Which Pretty Little Liars Girl Was Childhood BFFs With Mary-Kate and Ashley Olsen? (PHOTOS)

Being best friends with Mary-Kate and Ashley Olsen used to be every little girl’s dream. (How cool would it have been to tell the Olsen twins, "You got it dude," IRL?!) It turns out one of the stars of Pretty Little Liars actually was besties with the superstar twins. 

Click to the next slide to find out who!