North West is such a great big sister.

Kim Kardashian shared the sweetest videos of her 5-year-old daughter holding her baby sister, Chicago, on Saturday morning. While having fun with various Instagram filters, the 37-year-old Keeping Up With the Kardashians star first shared a handful of clips of just herself and little Chi.

She then posted an adorable clip of North wearing a lavender dress with her hair up in two space buns, and smiling as she held on to her 6-month-old little sis. “You guys are so cute,” the mother of three proudly says, as both girls have butterflies flying around their heads.