Hulu’s The Kardashians and the family’s previous reality show, Keeping Up With the Kardashians, is focused around the Kardashian-Jenner family. As Kim, Khloe, and Kourtney Kardashian have usually taken center stage, some of the other family members get less air time including Mason Disick.

Kourtney Kardashian and Scott Disick‘s eldest son, Mason, was literally given birth to on a reality TV show. While fans were privy to a lot of his early life on screen, Mason appears to have taken a step away from the spotlight as he’s entering his teenage years. A recent snap of Mason shared by Kim Kardashian has fans freaking out at how old he looks nowadays.

Kourtney Kardashian And Family Visit "Cats"
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Kim Kardashian shares pic with Mason Disick

Lots of The Kardashians fans may remember Mason being an adorable baby when he appeared on his family’s TV show.

But, he’s now the grand old age of 13 and fans can’t quite believe how much he looks like his uncle, Rob Kardashian.

Taking to the comments section of Kim’s Instagram post, captioned “Everything,” one fan wrote: “Mason the perfect spilt of Kourtney and Scott lol.”

Another said: “Mason looks like Scott and Rob had a baby lol.”

More thought that Kourtney and Scott’s son looks exactly like Rob: “Mason got so big aww looking just like Rob”

Scott Disick Celebrates 30th Birthday At Hyde Bellagio In Las Vegas Over Memorial Day Weekend
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Fans can’t get over Mason’s look

While Mason’s sister, Penelope Disick, has been appearing in the latest The Kardashians episodes, he and his younger brother, Reign Disick, don’t appear on screen.

Given his absence from the Hulu show, it makes sense fans are gobsmacked at how much he appears to have “grown up,” in Kim’s Instagram post.

Fans commented: “Is that Mason??? Sheesh he looks so mature now! He looks his his paw paw.”

Another asked how he looks so old: “Shut up. Why does Mason look 17?”

And more said: “Omg WE HAVENT SEEN MASON IN FOREVERRRRRRRRRRR!!!!! Our little internet nephew GREW UP!!!!!!!!!!!!”

“Wow Mason had a whole growth spurt. So handsome!”

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A post shared by Kim Kardashian (@kimkardashian)

Kim’s nephew is so ‘grown up’

Kim’s Instagram post sees her posing alongside her four children, North, Saint, Chicago, and Psalm, as well as Scott, Mason and Penelope.

While many people were busy noticing how much older Mason looks, others were keen to point out their thoughts on Scott’s daughter: “Penelope never grows she looks the exact same.”

Penelope is two years younger than Mason, making her 11. And the two are older siblings to eight-year-old Reign, who is the youngest of Kourtney and Scott’s children together.