The twins first words were in Spanish, thanks to Grandma. But now that they are in school, they speak only English, with an occasional Spanish word, however; they still understand Spanish fully.
Charlie has decided if she speaks gibberish really fast and in a high voice, she's speaking Spanish.
Mom: Charlie, speak in Spanish for Grandma.
Charlie:
, Caca, poo-poo, Chee
Well, she is right.