Getty Images

See The Adorable First Photo Of Saint West, Featuring Big Sister North

Cutest BFFs.

Kim Kardashian and Kanye West are wasting no time bestowing the world with New Year's blessings in the form of their insanely cute kiddos -- not only did Kim just post the very first glimpse of almost one-month-old baby son Saint, daughter North pitched in to make the pic heart-burstingly adorable.

Mom captioned the post of her babes sweetly linking hands, "She said, 'He's my best friend.'" And our hearts grew three sizes this day.

Of course, North is an old pro at the art of storming social media – at the tender age of two and a half, she's already sent her first tweet and posted her first #tbt.

Prince George and Princess Charlotte had better brush up on their picture-perfect poses and Insta-skills, because a new royal sibling duo has officially arrived, and they are bringing it.