Kourtney Kardashian Shares Rare Photo With Adorable Son Reign

Serious business.

The newest Kardashian generation continues to be full-on cute.

We've seen lots of North West and Penelope Disick, the most adorable toddler duo around. But on Friday, Kourtney Kardashian shared a rare photo of her baby son, Reign, captioned simply, "Serious."

All we need now is a group cousin shot.

Speaking of North and Penelope, the two recently got up to some cute antics with a mermaid on their family vacation to St. Barts.

As an update, we are still trying to get in on this beach trip.

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