Kourtney Kardashian celebrated her sons Mason and Reign’s shared birthday on Wednesday, December 14, with a sweet message and a family-filled trip to Disneyland.

The Keeping Up With the Kardashians star, who gave birth to her firstborn, Mason, 7, on December 14, 2009, and Reign, 2, on December 14, 2014, shared a sweet note on her website in honor of her kids’ shared birthday. “How crazy is it that I have two boys born on the same exact day? It is truly so special and meant to be,” Kardashian wrote. “They changed my heart forever. Happy birthday to the coolest brothers I know!!!”

In photos posted to her Snapchat, Kourtney kicked off their birthday celebration with the help of Elf on the Shelf. She then took her sons and daughter, Penelope, to Disneyland. 

Joining in on their festivities was the birthday boys' grandma, a.k.a Lovie, Kris Jenner, and their dad, Scott Disick.

Jenner also shared a sweet Instagram dedicated to her grandsons. “Happy birthday to these two sweet boys!! Our precious angels Mason and Reign. I love you more than words can say. 🎉🎉 #myheart,” she wrote alongside an adorable photo of the brothers hugging. 

Sign up now for the Us Weekly newsletter to get breaking celebrity news, hot pics, and more delivered straight to your inbox!