Fleishman Is in Trouble: A Novel by Taffy Brodesser-Akner:
Solly, his nine-year-old, woke up, but Hannah, who was eleven, wanted to stay in bed. “Sorry, kid, no dice,” Toby told her. “We have to be out the door in twenty.” They stumbled into the kitchen with unfocused eyes, and Toby had to muck around in their bags to find the clothing they were supposed to wear for camp that day. Hannah snarled at him that he’d chosen the wrong outfit, that the leggings were for tomorrow, and so he held up her tiny red shorts and she swiped them out of his hands with the disgust of a person who was not committed to any consideration of scale when it came to emotional display. Then she flared her nostrils and stiffened her lips and told him somehow without opening her teeth that she had wanted him to buy Corn Flakes, not Corn Chex, the subtext being what kind of fucking idiot was she given for a father.
Solly, on the other hand, are his Corn Chex cheerfully. He closed his eyes and shook his head with pleasure. “Hannah,” he said. “You have to try these.”