She ignored the boy's curses as she turned to the girl, a look of almost surprise on her face.
"But my dear, I thought that was obvious. I want to have a little fun."
For this she would need the wand. She pulled it out to point at John, and with every ounce of her true self, she spoke a single word.
"Crucio."
John screamed, writhing in agony in his bonds, eyes closed in agony as his body was consumed by pain of the worst kind. After a few seconds, it stopped, and she turned again to the girl.