"Ahhhh, yes," he grinned, "I thought you might have a particular disinclination for knives... I heard about Bellatrix’ work, after all." He trailed the tip of the blade slowly down the front of Hermione’s robes, exerting pressure to slice through the fabric and occasionally nick skin, which caused her to hiss sharply. "Maybe I’ll have some fun with you first, though... if Severus here is lying about his interest in you, it’ll be absolute torture for him to witness. If he’s not," he shrugged. "It will still be plenty entertaining for me." With a smirk, he pulled open her robes, exposing a breast and grabbing it roughly enough to cause her to yell. 