Fans Declare Kourtney Kardashian's Son Mason Is 'So Grown' in Rare Update

Kourtney Kardashian

Kourtney Kardashian and Scott Disick don't often post photos of their eldest child, Mason Disick, so when a new picture surfaces, social media followers take notice. This time, Kim Kardashian shared a picture of the eldest Kar-Jenner grandchild—and fans have declared that he looks "so grown" in the rare update.

On Monday, Dec. 11, the SKIMS mogul took to Instagram with a pair of photos of herself posing with her kids, nieces and nephews. The first image showed Kim holding her younger daughter, Chicago West, with her elder daughter, North West, standing next to them while flashing a peace sign.

In the second picture, however, Kim's sons, Saint West and Psalm West joined in—alongside Scott, Mason and Penelope Disick. Folks couldn't help but fuss over how much Mason—who is taller than Kim and catching up to his dad—has matured since the last time he made an Instagram appearance.

One person wrote, "Omg WE HAVENT SEEN MASON IN FOREVERRRRRRRRRRR!!!!! Our little internet nephew GREW UP!!!!!!!!!!!!"

Another Instagram user commented, "shut UP. why does mason look 17."

Yet another person declared, "Mason is so grown ??."

Meanwhile, someone else commented, "Mason is a whole adult now."

Interestingly, other Instagram users thought Mason resembled another Kardashian family member: uncle Rob Kardashian.

One person commented, "Is It Just Me Or Does Mason Actually Resemble Rob A lot?"

Someone else agreed, writing, "Mason looks like Scott and rob had a baby lol."

Yet another Instagram user wrote, "Mason got so big aww looking just like Rob."

Mason turns 14 on Dec. 14—the same day his younger brother, Reign, turns 9. So hopefully, fans can look forward to more photo updates featuring the birthday boys later this week!

Next: The Making of an Empire: All About the Kardashian Kids