Draco maintains his grave exterior for the time it takes to extract his hand and wipe his palm on his trousers. Then, his face splits into a wide, giddy grin. He has an imposing moron at his beck and call, just like old times!

"Right," he says, breathless with excitement. "Now pick me up so I can ride about on your shoulders!" He lifts his arms - let no one say he's making her do all the work - and bounces on his heels.