Why can't the children behave?

At her mother's question she kicked her feet and complained like a child, "Oooh, mother!! why are you asking such a question." 

"Don't mother me young lady, you spent the night out without giving us so much as a heads up. I don't care if you are married, if you are still living under my roof you must obediently follow the rules like a good child. You are my baby, if my baby sleeps out I must know." 

"Mother, I am not a baby." she answered. 

"No, you are still a baby." her mother insisted. 

She snorted and said, "Mother, prince Markay has been running around calling Carolyn baby, baby, everywhere. I think she officially owns the word baby now." 

Mega rubbed her stomach and winced which prompted Scarlet to raise her head and look at her mother worriedly. "Mother, what's wrong?"