Apparently, there’s no such thing as sibling rivalry in the Kardashian-Jenner clan's next generation.

Kourtney Kardashian has launched her wide-spanning career through spending time with her sisters on Keeping up with the Kardashians as they traveled the world, documented their adventures, and captured special moments on social media. So perhaps it comes as no surprise that Kardashian’s too-cute, mini-me children are also growing up to be the ultimate BFFs.

On Thursday, the 37-year-old mother of three took to Instagram to offer a glimpse at her recent time off, which included a visit to the Bahamas, and posted an image of Penelope Disick, who just turned 4-years-old, and Mason Disick, 6, walking along a pebble-stone covered path. “On a cloud,” she wrote as the caption to the shot.

In the picture, not only do the sister-brother duo sport sunny ensembles—Penelope rocks a colorful striped dress while Mason sports a pair of blue trunks—but they also hold each other's hand.

Earlier this week, Kardashian also shared images of her island getaway with family friend Larsa Pippen.

Talk about a picture-perfect family vacation.