Luna takes her role as big sister very seriously—and these photos are proof.

On Instagram, Chrissy Teigen shared a photo slideshow of her oldest daughter taking care of her siblings while she was away. The first picture shows Luna walking around the living room and holding her baby sister, Esti.

Luna, who is having her very own Pretty in Pink moment, is wearing a fuchsia dress that features a toucan print, along with a matching hair bow.

In the third snap, she is helping her younger brother Miles, 4, make some delicious cupcakes. In the last photo, Luna is proudly showing off the decorated treats. Teigen wrote in the caption, “Told Luna to take care of the house while I was gone and she really did.”

Emma McIntyre/Getty Images

This is certainly not the first time the mother of three has captured a sweet moment shared between the young siblings. Back in January, Teigen, 37, posted a photo of her oldest children holding their little sister in their arms.

The caption read, “She’s here! Esti Maxine Stephens—the house is bustling and our family could not be happier [heart emojis] Daddy sheds nightly tears of joy seeing Luna and Miles so full of love, and I am learning you still need diapers with a c section!? We are in bliss. Thank you for all the love and well wishes—we feel it all! X.”

More heartwarming sister moments between Luna and baby Esti, please and thank you!

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