Credit: Ashley Benson Instagram

Shay Mitchell (Emily) and Ashley Benson (Hanna) are besties on Pretty Little Liars, but what about in real life? Shay dished to Mobio Insider about what she thought of Ash the very first time they met. Warning: her answer may melt your heart.

When asked what she thought of her Pretty Little Liars co-star the moment she clapped eyes on her, Shay responded: “Love at first site! She is like my sister x.” Which may just be the sweetest thing we’ve ever heard. And, these two spend way too much time together for that to be all talk. On top of all of their interaction filming Pretty Little Liars, these two make time to hang out off-set. In fact, Ashley and Shay recently went to Disneyland together! The two besties donned Mickey Mouse hats and smiles to visit the happiest place on earth.

And nothing says “besties” like spending the holiday together. The two stars also rung in the New Year together and spent last Halloween taking their chances on a haunted hayride (as if they didn’t get enough frights on Pretty Little Liars).

In September, they took some time away from their own television show to obsess about another: Breaking Bad. Shay posted this picture of herself, Ash, and Pretty Little Liars showrunner Marlene King wearing tighty whities over their clothes in preparation for the epic series finale. Along with the picture was this disclaimer: “Getting our Walter White on! Can't wait for the finale!!!#breakingbad @itsashbenzo& @imarleneking #donottalktomestartingnow.” And everyone knows that the friends who watch television together stay together, amirite?

Are Shay and Hanna your favorite celebrity friendship? Do you think their real-life love shines through on PLL? Sound off in the comments below!

Catch the next episode of Pretty Little Liars on March 4, 2014 at 8 p.m. ET on ABC.

Kayti Burt is a contributing writer for Wetpaint Entertainment with a penchant for all things pop culture. Follow her on Twitter and Google+!