The Doctor frowned as his younger child's expression went from hopeful to flushed to white with fury. For a second he thought she was going to fly at him, but then she turned on her heel and stalked away, as only a teenage girl knows how to do. He stared after her, confused, he thought he'd paid her a rather nice compliment.
"OI!!!" He yelled out, startled, as a hard slap caught him in the back of the head and snapped his neck forwards until his chin nearly bruised his chest. The Doctor stood, turning, ready to lay into whoever had the audacity to actually strike him... and found himself facing the second furiously pale female he'd seen in under a minute. He paused, changed what he was going to say three times, and then finally settled on "You hit me. Why did you do that?"
The woman he'd seen pulled from the ocean by a great bloody snake and had interacted with only briefly since was clearly hanging onto her temper by a thread, as she paused and breathed before she spoke. When she did, she used that deadly calm voice punctuated by precise consonants that even the dullest wit knew meant trouble of the very worst kind.
"She is fifteen years old. She is your daughter, or at least you've claimed her as such." Meia's tone and pace began to rise, gradually, but there was a definite increase as the words flowed. "And do you know what you just did, Doctor?" He winced, her tone had jumped to scathing there for an instant. "You just evaluated Misty, like you would a Companion, and the girls know how long those last."
At that, Meia saw his expression turn inward as he realized his error. When he looked back at her wearing that "what do I do now" look she found so endearing, she softened. But only a little. "She was trying so hard to be a girl for you, since you led her think that's what you wanted. But you can't treat her or Mia like Companions, Doctor, because they're not. Companions grow and change and leave you. These girls are your children, and you have to start remembering that before you open your gob, yeah?" Shamefaced, he looked down, nodding a little and scrubbing one shoe on the back of his trouser leg. Those boyish gestures of his were really going to be her downfall, Meia thought to herself, very very quietly, before she laid one gentle finger under his chin and raised his eyes back to hers.
"Go get her, you big softie. Hurry up, now, that girl has definitely inherited your tendency to bolt when things get messy, I can hear her song shifting, and if you don't move that skinny arse you're likely to have a swim in order to catch her." The Doctor's eyes popped a little at that, and he turned for the pier at a dead sprint, shedding his tool belt as he ran.
He hadn't forgotten her entirely, though, Meia saw to her satisfaction. As he turned onto the beach-run boardwalk, he spared half a second to glance back and toss her that irrepressible grin that made her insides go all fluttery. She smiled, watched him run for a moment until he vanished behind a stand of trees, and then picked up both their abandoned tools and set to work seeing if she could figure out what he'd been looking for in the Center's structure.