"Bit of an understatement!" the Doctor laughed softly, perhaps not quite as forcefully as he usually would have retorted, but perhaps that was partly due to the feeling of Jack breathing against his neck. Still, the moment passed, and rather abruptly as jack joked about his screwdriver once again.
"Hey, that screwdriver has served me well!" he insisted, tapping Jack's chest with his index finger as if he were an irritating schoolboy that just wouldn't take a telling.
"I do, but it's no fun otherwise!" he agreed, "even if it does end with mothers slapping me all the time."