With North West, who just turned four, and cousin Penelope Disick, who’ll be five on July 8, so close in age, it’s natural that their mommas, Kim Kardashian-West and Kourtney Kardashian, would want them to celebrate together: Last year the two were thrown a glorious joint mermaid-themed bash.

2017 was no exception, with the girls not only receiving “sister puppies” earlier this week, but also enjoying another epic party together, this time with a theme of Disney’s Moana.

The elder moms/Kardashian sisters went all out for the affair: Not only was there a petting zoo with peacocks and the like for the party’s tykes to enjoy, but they also had a life-size bouncy house, with party actors on hand to play the parts of Moana and Maui.

Guests, including birthday girl Penelope, also got into character, donning festive leis, grass skirts, and bright bold hues. They didn’t shirk on the menu, either. Khloé Kardashian gave us a view of the perfectly themed cakes, which were three tiers each and featured a candle bearing the age of each girl.

Those that wanted something extra to nibble on had grilled meats and sides like macaroni and cheese at the ready, and for dessert, Kourtney K. showed off some yummy-looking rainbow treats.

We’ve gotta say: We’re kinda jealous we weren’t there!

Happy birthday, ladies!

Will you be recreating this Moana-themed fete? Tell us over @BritandCo.

(h/t E!; photos via @khloesnapchats + Dave Lee/Getty)