Kourtney Kardashian & Scott Disick Unite at Mason’s Bar Mitzvah Party

Mason turned 13 on Dec. 14. “The day has come where you’re taller then [sic] me now,” Kim wrote on her Instagram Story that day, sharing a rare photo of her eldest nephew, who has shied away from the spotlight in recent years. “I just love who you are and I’m just so proud of you Mason. Welcome to your teenage years. Happy Birthday.”

Scott wrote on his own Instagram Story at the time, “Happy birthday 2 my better half. Love you mason.”

Mason shares a birthday with his little brother Reign. On her Instagram, Kourtney shared a sweet throwback photo of her sons.

“December 14th… one of the best days of my life,” Kourtney wrote Dec. 14. “Twice and forever. my birthday boys.”

On Dec. 17, Scott shared a pic of Reign on his Instagram Story. “The man,” he said. “One down one to go.”

See photos of Kardashian-Jenner family members at Mason’s bar mitzvah party: