Scott Disick Celebrates Son Mason, 14, Graduating Middle School: ‘My Best Friend in the World’

"Now on to high school," wrote 'The Kardashians' star on Instagram as he posed with his son outside Nobu

Scott Disick is celebrating an important milestone in his eldest son’s life.

On Thursday, June 6, Disick, 41, shared a congratulatory post to celebrate his son Mason Dash, 14, graduating from middle school.

“Congratulations 2 my best friend in the world 🌎 for graduatiuating middle school and now on to high school! Let’s go mart!!,” the proud father wrote as he shared a photo that featured him standing in between Mason and a friend.

In the snap, which appeared to be taken outside Nobu Malibu, Mason and his pal turned their backs to the camera as Disick rested his arms on their shoulders.

Related: Scott Disick Shares Blinged-Out Photo of Son Reign as He Wears Matching Cheetah Print Set

Disick, who shares Mason, daughter Penelope Scotland, 11, and son Reign Aston, 9, with his ex Kourney Kardashian Barker, covered his eyes with a pair of black sunglasses as he wore a jacket over a dark gray T-shirt and cargo pants.

Mason, meanwhile, sported a long-sleeved red T-shirt and baggy black pants.

“How is he in high school already? I swear he was just born 😢,” one person commented, while another added, “Go Mase!!! It’s crazy how fast they grow up 🥹😭.”

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Related: Scott Disick Enjoys Quality Time Getting Dinner and Riding Dirt Bikes with Son Reign: 'Funny Little Guy'

That same day, Disick also shared a sweet new snap of his daughter Penelope on his Instagram Stories.

“Love u peep,” the father of three wrote across the photo as he carried his little girl, who flashed a peace sign to the camera and pouted her lips.

Disick's congratulations for Mason come after his eldest child joined Instagram last month.

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Mason’s debut photo featured him standing outdoors on a balcony with his head dipped down while sporting a cap.

“I can’t believe this is happening,” his aunt Khloé Kardashian wrote, while his other aunt Kim Kardashian commented, “You’re really on Instagram 🥹.”

His mother also added, “My first baby 🥹.”

While Kourtney shares three children with Disick, she also welcomed son Rocky Thirteen with her husband Travis Barker in November 2023.

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