This pattern continued a few times – her trying to distract herself with mundane thoughts and, when she inevitably started to nod off, getting shocked back into a state of arousal. By the time the door opened, she was horny and desperate enough that she was far less self-conscious about Snape seeing her naked and in this state. She heard his steps pause at the doorway for a moment before stepping inside and closing the door. She tried to imagine what he might be thinking. From the door, he would be able to see her left side in profile but as he progressed into the room, she could hear him circle around her. His steps were slow and deliberate, but he did not say anything. He paused for a moment in front of her, and her cheeks flushed as she imagined the puddle of saliva that must have dribbled below her. He continued walking around her and paused again behind her, where her backside and fanny were on full view. She shifted involuntarily as the awareness of her scrutiny drew mortification along with arousal. Holy shit, she was wiggling her naked plugged arse at Snape. She bit into the ball gag to resist moaning as her cheeks flushed again in humiliation. 