"Well, wasn't it you saying I've been weird since the day I was born? Shouldn't be a surprise to you. And to me, you've been James longer. Except you're Jamie. Whatever."
Lily laughed. "Impossible? Yay. I'm moving up." She grinned and poked at her brother again. "And I don't want a boy to shag, thanks. You can have them all. Although I don't know what your boyfriend's going to say..."
She grinned right back up at him, but her smile softened after a moment, and she reached up to pat his cheek. "I love you. You know that, right?"