up on daddy's head

Every night before Charlie goes to bed, he has to name every person in the pictures we have in the hallway. One night, I put Charlie up on my shoulders to do this instead of holding him up. But, then I realized that I didn't need to start that habit since I really needed to limit my lifting due to the pregnancy. But, as expected, the next night, Charlie said, "up on Mommy's head?" I told him "no" but he pitched a two-year-old fit so I said, "see if Daddy will hold you up." From then on, each night after we brush Charlie's teeth he says, "up on Daddy's head?"