Below is a photo of Beatrice 'showing' Theo how to use his sippy cup.
Beatrice: "Here brudder (brother). Drink."
Beatrice (shrieking): "Dora Christmas special, Dora Christmas special. I haven't seen in foreber (forever)." (Note that Beatrice's head is completely turned away from Theo, she's totally missing his mouth with the cup.)
Theo: "Good god, sister. Give me that milk." (Note his tongue outstretched like a kitten's trying to lap up some milk.)