full size Kendall and Kylie Jenner Smile as Little Kids
Credit: Instagram

The youngest siblings of the Kardashian family are apparently adorable at any age!

Kylie Jenner showed some love for sister Kendall Jenner by sharing a picture of the inseparable duo back before they became leggy teen models.

“#NationalSiblingDay,” she wrote jokingly alongside the photo.

The girls barely look old enough to be in kindergarten and are all smiles in their sporty Adidas t-shirts — an outfit their Olympian dad Bruce Jenner may have picked out!

Source: Instagram

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