Start your engines! It's time for a Kourtney Kardashian-planned birthday celebration.
The E! reality star hosted a party on Saturday for her two boys, Mason Disickand Reign Disick, who just so happened to celebrate their seventh and second birthdays, respectively, on the very same day.
Multiple sources confirmed to E! News that Kourt was planning to round out a week of celebratory festivities at her pad with a "low-key" party for Mason and Reign, which was very appropriately themed à la The Fast and the Furious.
Scott Disick's leading lady kept it rocker chic by tying a red, white and blue bandana around her head and sporting an oversized denim jacket, skinny jeans and casual sneakers. Celeb hairstylist Jen Atkin also attended, along the way snapping a few photographs of herself, Kourt and another pal in front of a massive, silver ballon arch.
As for activities, both kids and adults got in on the fun, which included going head to head on a tricycle race track and jumping in a huge bounce house shaped like a car.
From the looks of the Keeping Up With the Kardashian's Snapchat, middle sis Penelope Disick also was present. As for their famous family members, Kylie Jenner was busy helping plan a surprise engagement for one of her best friends and Rob Kardashian was facing ongoing relationship drama with Blac Chyna over social media.
Earlier this week, Scott and Kourt took their three children and mom Kris Jenner on a fun-filled adventure to Disneyland Resort in Anaheim, Calif. Throughout the day, the group was spotted riding It's a Small World, the Merry-Go-Round and other attractions near Fantasy Land.
Before heading to the Happiest Place on Earth, the proud mother-of-three shared a heartfelt message to her boys on her popular app.
"How crazy is it that I have two boys born on the same exact day?" she wrote. "It is truly so special and meant to be. They changed my heart forever. Happy birthday to the coolest brothers I know!!!"
Happy birthday, Mason and Reign!
Watch the Rob & Chyna Baby Special Sunday, December 18 at 8 p.m., only on E!