Celebrity Parents Scott Disick, Kim Kardashian & Kris Jenner Celebrate Mason & Reign's Birthdays with Sweet Tributes Mason and Reign Disick were both born on Dec. 14 By Karen Mizoguchi Published on December 14, 2019 03:15 PM Share Tweet Pin Email Happy birthday, Mason and Reign! The Disick brothers celebrated their 10th and 5th birthdays, respectively, on Saturday. Proud dad Scott Disick showered his sons with love on Instagram. “It’s just me and my best friend. 10 years of the best love ever,” the father of three wrote in his dedication to Mason. “My little reign maker turns 5 today!” Disick wrote in honor of Reign. Their mom Kourtney Kardashian also shared individual tributes for her children. “Life has so much more meaning with this silly, sensitive boy who has shown me the world through such different eyes,” she wrote for Reign. And the boys’ aunt Kim Kardashian West celebrated their special days with family photos of their nephews. “Happy Birthday Mason! You are so special and bring such a light into all of our lives! I know it’s annoying all of the other cousins are so much younger but they look up to you so much! Thank you for being the best big cousin for my babies. I can’t believe you were this photo was taken 10 years ago! We all love you so much,” she shared on Instagram as their mom Kourtney Kardashian commented: “Time flies.” The KKW Beauty mogul also shared a separate post for her nephew Reign. “Happy Birthday Reigny! You are the silliest little kid I know. Thank you for being Saints best friend and always having his back! I love you more than you could ever imagine!!!!” she wrote. Never miss a story — sign up for PEOPLE’s free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories In addition, “Lovey” Kris Jenner posted tributes to her grandsons. From Dinosaurs and Unicorns to Fortnite and Tarzan: The Kardashian Kids’ Best Birthday Party Themes Though Mason and Reign share the same birthday, the eldest Disick sibling marked his big day with his own party last year. The entire Kardashian family got together to throw a massive bash with a Fortnite theme that included a light-up dance floor, custom apparel and giant video screens where partygoers played the popular video game. Dad Disick was not present for the party as he was traveling abroad with girlfriend Sofia Richie. In addition to the big bash, Kim, Kourtney and Kris also took the kids to Disneyland to celebrate both Mason and Reign’s birthdays.