Mason Disick is one adorable six-year-old!

Even though he's grown up in the spotlight, we were still surprised to see how big Kourtney Kardashian and Scott Disick's son has gotten when he stepped out with his dad in LA on Oct. 6.

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mason disick scott disick splash

Sporting a shorter hairstyle, the OG Kardashian grandchild was all smiles as he headed to dinner with Scott.

Scroll through the gallery below to see how much Mason has changed over the years!