In the adorable pic, the young girls are wearing matching floral looks, with Khloe sporting a dress and Kim and Kourtney opting for a floral vest, white shirt, and dark printed pants.
"Triplets," Kim captioned the shot.
The Kardashians clearly loved the adorable pic, with Khloe commenting, "Hahahahaha totally triplets," and the sisters' mom, Kris Jenner, quipping, "Honestly I should have been a stylist, just LOOK at these outfits!!!!!"
Many other Instagram users took to the comments section to marvel over how much Kim looks like her eldest child, North West, in the shot. Kim and her husband, Kanye West, share four children, North, 6, Saint, 4, Chicago, 1, and Psalm, 7 months.