Are you and best friend literally attached at the hip? Okay, not literally, but you get what we mean! We’ve debated and deliberated and we decided that having a bestie in high school is actually more vital than owning a cell phone. Allow us to explain… Who else are you going to pass notes to when you’re sitting in Chemistry class bored out of your mind? Your BFF of course. Plus, it’s not like you could eat a tub of chocolate frosting in your PJs while binge watching The Vampire Diaries with just anyone! You need your ride-or-die sister-from-another-mister by your side to partake in all of your slightly awkward favorite activities. In fact, you need your other half with you to partake in everything you do, even Halloween! It's obvious your bestie is vital to your very existence (that might be a slight exaggeration, but you understand), so we’ve conjured up some of our cutest costumes for BFFs. We have tons of options to fit all kinds of bestie relationships so pick out your favorite, put it on, and start posing for some Instagram posts. Your "likes" are going to skyrocket!