1. They've been spending time together since North was out of the womb.
2. They pose in family Kristmas Kards together.
3. They hang out after bathtime.
4. They go trick-or-treating together.
5. They dress-up as Anna and Elsa from Disney's Frozen.
6. And have even tried to enter the magical world of Arendelle together.
7. They hold each other's hands during car rides.
8. They rock mermaid tails together.
9. They both wear ballerina outfits.
10. They hang out on the kitchen counter for fun.
11. They wear matching costumes.
12. They have sleepovers and movie nights at Khloe's house.
13. And team up to show their support for Khloe's new book.
14. They get their faces painted with the same design.
15. And sport sunglasses on sunny days.
Basically, North + Penelope = Cutest Besties Ever!
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