She was pouting a little herself in sympathy as he went on and on once more, though the further he took it, the harder it was to keep herself from grinning in amusement.
"I'm so sorry, sweetheart," she said, petting his hair again before moving her hand to his face and stroking his cheek with her fingertips. "I won't be mean to you anymore, okay? Cross my heart." And to emphasize her point, she used her free hand to make a criss-crossing motion over her heart.