Happy birthday to cousins North West and Penelope Disick.
The adorable duo celebrated their birthdays – along with the rest of the Kardashian clan – with a mermaid themed party.
The duo sported matching mermaid costumes at the party, which was decked out with pool toys, princesses and two cakes.
Proud auntie Kylie Jenner gave us a glimpse of the party via Snapchat.
"She promised me she wouldn't get any bigger!" Kim wrote on Instagram. "I can't believe my baby girl is 3 years old today!!!! Northie I love you so much I can't even explain it! Happy Birthday to my favorite mermaid!!!"
North turned three on June 15, while Penelope will turn four on July 8.