Spotted: Mason Disick on a sunset walk.
"Night walk," the pregnant Poosh founder wrote on her Instagram Stories, "with my boys."
For their family outing, Mason wore a grey hoodie, black sweatpants and black sneakers, while his little brother sported a royal blue sweatshirt, black shorts and black and neon green alien-patterned Crocs.
Mason, the eldest of Kris Jenner's 12 grandchildren and the first Kardashian-Jenner kid to have his birth documented on-camera—on the season four finale of E!s Keeping Up with the Kardashians in 2010, has kept away from the spotlight in recent years. His family occasionally shares pics of him on social media, but not as much as his siblings, Reign and sister Penelope Disick, 11.
Kourtney last posted a current photo of Mason in May. The Lemme supplements founder shared an Instagram Stories photo of him and Reign riding bikes together. In April, Scott posted a pic of all three of their kids at a Passover Seder dinner.
Kourtney shared her new pics of her and Scott's sons soon after posting pics from her trip to Hawaii with Penelope and a group of girls to Hawaii celebrate her daughter's 11th birthday.
Look back at Mason's cutest childhood photos below: