KimKardashian/Instastories

Kim Kardashian and her sister Kourtney decided once again to celebrate Penelope Disick and North West's birthdays together with an epic party. It was unicorn-themed and so cute.

More from MamásLatinas: North West's 33 best fashion moments

For some reason, their famous parents decided to throw the bash in advance of their birthdays. North will be 5 on June 15, while Penelope's sixth birthday won't happen until July 8. It might mean that they celebrations continue until their actual birthdays.

Wait until you see how things went down at this year's party!

Stormi celebrated her first family birthday! 1

Of course, being part of the Kardashian-Jenner family, she was in a Gucci carrier!

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Grandma Kris Jenner was hanging out with Dream Kardashian. 2

She is the only one of her grand kids to have the Kardashian last name, since she is Rob's daughter with Blac Chyna.

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The centerpieces were incredible. 3

We know the family dropped dollars on the decor. However, it like an easy and cheap project to replicate for a kid's birthday party. The stools could be made with waste baskets covered with a faux fur fabric. 

Penelope didn't seem impressed with the unicorn headband. 4

But North and another guest were having a blast.

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They looked adorable around the cakes. 5

They looked adorable around the cakes.

KimKardashian/Instastories

Yes, they had twin unicorn cakes.

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Here's an upclose shot of one of the cakes. 6

It's adorable. Wait until you see what it looks like when they slice it.

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All those layers look yummy! 7

And so many M&Ms!

The girls had their own kid DJ. 8

The girls had their own kid DJ.

DJLivia/Instagram

Remember this face! Livia is a Mexican-American talent who will go places for sure. Hey, she already made it to a Kardashian party. The sky is the limit. Go, girl!

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They had the best floaters for the pool. 9

Get ready to see a lot of those everywhere this summer.

Kourtney was digging the unicorn theme. 10

Kourtney was digging the unicorn theme.

Kourtney Kardashian/Snapchat

Loved her iridescent pink swimsuit!

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The girls looked adorable. 11

North and Penelope were just too cute with their matching rainbow swimsuits and robes.

They had ponies dressed up as unicorns. 12

What a magical party to have when you are a little girl.

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Great grandma Mary Jo looked great. 13

Her style could be described as elegant boho.

Daddy Kanye West helped North with the candles. 14

Kim was behind them. It's good to see them celebrating together.