Kourtney Kardashian's Kids Look So Grown Up in New Photos & Videos — Including a Rare Glimpse of Mason & Baby Rocky

Time needs to slow down! Kourtney Kardashian was just playing silly games with her toddler son Mason on Keeping Up With The Kardashians, and now she has four kids — and Mason is 14!! New pictures and videos of Kourtney’s four kids show just how grown up they are.

Mason’s ‘Fit Check

First, Khloé Kardashian shared a rare video of Mason, who she shares with ex Scott Disick, on her Instagram story on Wednesday. (PEOPLE has screenshots HERE.) The teen is dressed oversized jean shorts and a denim jacket with brown boots. He completed the look with multiple pieces of Chrome Hearts jewelry on his fingers, belt buckle, and pocket, as well as a luxe Rolex watch.

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“Fit check, Chrome, Chrome, show me your belt, show me the belt, yes, Mason,” Khloé says in the video. “Oh, fit check, let me see these rings,” she continued, as Mason put his fist together to show off his rings. “What is happening? Chrome! Chrome! Chrome!”

He pulls up his sleeve to show off his Rolex, which makes Khloé shriek, “What?” She wrote “Go offfff Mase” over the cute video, which stops just short of revealing his face.

Khloé also shared a video of Reign, 9, who was dressed in a black sweater with jeans, a gold ring, and a gold chain necklace. “Oh my gosh!” the Good American founder says after admiring her nephew’s outfit. “Look at this hair. This amazing head of hair,” she adds, while running her fingers through his thick brown hair.

Vacation Vibes

Today, Kourtney posted a photo dump of her three youngest kids: Penelope, 11, and Reign, who she shares with Disick, and baby Rocky, 4 months, who she shares with husband Travis Barker.

“Feeling so grateful for every single second of time with my babies,” The Kardashians star captioned the heartwarming post. “Rare to get 2 full weeks of 24/7 time as they get older! Thank you Australia for the beautiful memories (minus the spiders).”

The first photo shows a rainbow sky outside of a plane window. Baby Rocky’s bare foot is held up in front of the mirror, with his precious little toesies spread out. It’s just a glimpse of the sweet baby, but it’s enough to see how much bigger he has gotten!

Slide 2 shows Kourtney in the backseat of a car with Penelope and Reign on either side of her. Penelope is matching her mom in a white t-shirt, with her brown hair pulled back in a ponytail just like Kourt’s. She purses her lips for the camera and sticks two fingers in the air for the cute picture. Other shots show Reign in the back of the truck, Kourtney and Reign climbing a rocky area, and Kourtney and Penelope eating ice cream.

Khloé commented on the post, “Those toes!!!!!”

“Penelope is already a ladyyy, she looks so pretty ❤️,” another person wrote. “Mama bear with her cubs 💜,” someone else said.

Australia Getaway

Kourtney was recently in Australia with her kids to support Barker on tour. The Blink-182 drummer shared a photo of his little boy, with his tiny toes reaching out to touch his dad’s drum set. Kourtney also postd pictures on Instagram of their gorgeous AirBnB, writing, “Thank you @airbnb for such a beautiful home to create memories that I will always remember and cherish,” she wrote. “Mornings making banana pancakes and nights playing uno forever and ever!!”

The Kardashian-Disick-Barker kids seem to be doing fabulously!

Before you go, check out Kourtney Kardashian’s best quotes about being a mom.

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