Kourtney Kardashian took to Instagram over the weekend to celebrate her daughter Penelope Disick's fifth birthday. From dressing up as a ballerina, to playing with her cousin North West, Penelope's party looked all kinds of perfect. And it's possible she was wearing one of Aunt Kylie's coveted lip kits, too.

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In one of the videos posted by Kim, North and Penelope were wearing grown up stilettos from one of the Kardashian closets. Kim asked the girls where they were going so dressed up, and they informed her that they were attending a party serving mermaid cake. How can I get an invite?

But the icing on the cake was Penelope's instructional video on how to make slime.

Basically, all of us should have birthday parties as fun as Penelope Disick's.

From: ELLE US