Sippy cups and speech impediments

I can tell that Carter (our two year old) is getting the hang of being a big brother by this scene that I observed:

Carter coaching, while leaning over Davis, "Say moult (milk), Day-dis! Say moult!" as he gently (sort of) offered his little brother a sip from his beloved Lightning McQueen cup. This instruction went on for quite some time.

Fortunately, Davis is a very patient little brother.