North West and Penelope Disick have an adorable little bond — and we can't imagine how happy that makes their mothers, Kim and Kourtney Kardashian!
Once in a while they'll let the boys, Mason, Reign and (eventually!) Saint, play too — but at the end of the day, this is pretty much a girl's club!
From weekly ballet classes, to holidays, to day-to-day tasks, there isn't much these two don't do together — check out some of their most precious moments in our gallery!
Want your kid to rock Nori and P's adorable style? Enter to win fashion and accessories from the Kardashian Kids line!