Hilary and Haylie Duff are sharing the best sister #TBTs

The Duff sisters — Hilary and Haylie, of course — are low-key adorable. Today they’ve upped that adorableness quota by posting pics of what life was like when the Duff girls were just tiny tots.

Haylie Duff started the #TBT love by posting this pic with her kid sis.

For anyone who follows these ladies as closely as we do on Instagram, Haylie is totally right. The Duff girls here look JUST like their own kids do today.

Proof:

Hilary then responded to her sister’s #TBT with one of her own.

Truly, it’s hard not to look at these and just say, “aww.”

Cute then and just as cute now. Happy #TBT Duff girls. It was pretty fun to go down this memory lane with you.