Chrissy Teigen and John Legend's eldest daughter, Luna Stephens, has charmed the world with her latest display of responsibility and maturity. The proud mom shared how their six-year-old daughter has stepped up to look after her younger siblings while they were out of the house. Chrissy and John left their children in the capable hands of their daughter LunaPosting the adorable moment on Instagram on Wednesday, Chrissy captioned the pictures: "Told Luna to look after the house while I was gone and she did really well."WATCH: John Legend revealed how his and Chrissy Teigen's children really feel about their baby sister Esti The first image shows Luna cradling her baby sister Esti Maxine, while the second picture shows her walking younger brother, Miles, four, in the rain making sure he is using his umbrella correctly. Luna cradling her baby sister Esti The next set of pictures sees Luna baking cupcakes with Miles and later proudly displaying the finished product to the camera.The post delighted fans with many singing Luna’s praises.