"He gave his approval, amid snickering from his compatriots.  You are now my... property," he said at last.  "I’m supposed to be teaching you the... error... of your ways, in supporting Mr. Potter and Mr. Weasley."  He snorted.  "You can be assured that he will be expecting you to be increasingly obedient in response to my... lessons."  He caressed her cheek with his thumb.