In the dimly lit library, Hermione's eyes widen as she discovers an unconventional spell in an old, dusty book. Her imagination runs wild, envisioning a massive, veiny cock materializing in her grasp. She tentatively strokes the phantom member, her heart pounding as she feels it grow harder. Her schoolgirl uniform can't contain her excitement as she rubs her pussy, desperate for more friction, more sensation, more magic.