Birthday royale!

Just one day afterMason Disickofficiallyturned 9, the entire Kardashian clan got together to throw a massive bash in honor ofKourtney KardashianandScott Disick’s eldest child.

This year’s theme paid honor to thepopular video gameFortnite, and the party featured giant video screens where partygoers could try their hand at being the last one standing, as well as a light-up dance floor, custom apparel, and a giant sign spelling out Mason’s name.

Khloe Kardashian/Instagram

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When it came time for the birthday boy to blow out the candles on his special cake — which had nods to the game — Kourtney lifted up Mason’s younger brotherReign, who was also born on Dec. 14, to help blow out the candles.

Kendall Jenner/Instagram

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Kourtney Kardashian/Instagram

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Kourtney’s on-again, off-again fling Luka Sabbat, whorecently turned 21, was also present, and appeared in one of the videos the mother of three, 39, shared on social media. In the clip, the model — who has long been a friend of the family — was seen taking some swings at a piñata.

Khloé Kardashian and daughter True.Khloe Kardashian/Instagram

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Luka Sabbat.

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Although the night was a family affair, Mason’s father Scott was not present, as he was traveling abroad with girlfriendSofia Richie.

On Saturday, the couple both posted photos of themselves posing in the Saudi Arabian desert.

A source tells PEOPLE that although Saturday seemed to be all about Mason, Kim, Kourtney and Kris took the kids to Disneyland on Friday in order to celebrate both Mason and Reign’s birthdays.

“They all had fun at Disneyland,” the insider shares. “They went on their favorite rides and the kids were so excited. Despite theKanye and Drake drama, Kim seemed fine. You could tell she just wanted the kids to have the best day.”

Although the famous family has yet to share many photos from the fun night out, Kourtney did post one picture of Cinderella’s castle at night on her Instagram story.

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Reign previously celebrated his fourth birthday earlier in December with ajoint Tarzan-themed bashwith Kim’s sonSaint.

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In honor of both of her birthday boys, Kourtney shared asweet tributeto her sons describing them as “the two coolest boys in the world.”

“I woke up yesterday with my heart so happy that God blessed me with the two coolest boys in the world. Such a bond. Happy Birthday Mason and Reign!” she wrote, alongside shots of the pair soaking up the sun together.

Disick also shared a sweet tribute of his own.

“Happy birthday my loves! ❤️” wrote the father of three on Friday, alongside asnapshotof his sons from the back on board a speedboat, which depicted Reign whispering something in Mason’s ear.

source: people.com