Many toxic parents compare one sibling unfavorably with another to make the target child feel that he's not doing enough to gain parental affection. This motivates the child to do whatever the parents want in order to regain their favor. This divide-and-conquer technique is often unleashed against children who become a little too independent, threatening the balance of the family system.
The magic girl licked the wet off her arms and looked over to me as if to say, See? You don't have to behave like them, you don't have to behave like anyone.