There was a sudden pang of guilt somewhere in the back of his throat. "He's an extremely capable man," he muttered, suppressing an absurd urge to stare at the floor. "We protect each other."

A loud bang came from the dining room as Harry slapped the table in triumph and surprise. "You've gone totally mad over your flatmate! How did this even happen?"

"Harry," their father said warningly. She waved a hand at him, the gesture vaguely dismissive.

"No, look, I'm happy, I really am. More power to you, and all that. But seriously--how?"