July 19, 2015 11:00 AM

Alexander Tamargo/WireImage

Kourtney Kardashian is one hot mama.

The reality star played around with two of her children, Mason, 5, and Penelope, 3, on Saturday, showing off her figure in a one-piece swimsuit.

In a video shared to Instagram, Kardashian, 36, zooms around her house on an electronic self-balancing scooter, cruising past Mason and Penelope.

“Gimme five,” she says before sharing a high-five with Mason.

Looks like 7-month-old son Reign sat this one out.

Kardashian’s hair is down and wavy, accentuating the deep v-neck of her maroon suit as Penelope calls out “mommy” in the background of the clip.

“How we get around our house,” Kardashian captioned the clip.

Kardashian’s boyfriend and the father of her children, Scott Disick, has not been photographed with the family since the longtime couple called it quits two weeks ago.

The kids have been spending time with Kardashian’s famous siblings as she leans on her family for support following the public split.

Aunt Kim Kardashian West posed for a series of silly selfies with Mason earlier in the week, and, on Friday, Khloé Kardashian had a girls’ night with Penelope.

He’s out! Scott Disick’s Belongings Find a New Home after Split from Kourtney Kardashian

Kardashian “is focused on her kids” in the wake of the breakup, a source previously told PEOPLE, and is making the tots her “top priority.”

“Kourtney will do whatever it takes to protect the kids,” the source said. “Her whole family is supporting and helping her.”

— Lindsay Kimble

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