imitation of mama or dada?

I overheard this hilarious exchange between Luke and Sophia this morning:

Sophia: (getting out the ladybug mat that we use for playdoh)

Luke: Sophia! It's not time to do playdoh! It's time to go to the orange playground! (complete with hand gestures signaling the urgency here)

Sophia: (continuing to get out the mat and studiously ignoring Luke)

Luke: Sophia! I'm serious!