"I had thought so but I've had to punish you once already and it is clear I am going to need to do it again because you keep lying to me," Professor Carrow explained like she was speaking to a first year.
She could feel Spencer's humiliation and it was delightful. Holding onto the thong for the moment, she regarded her assistant.
"You aren't?" she accused. "You're sure?"
"Bend over your desk," Professor Carrow instructed. Her choice of words was very careful. Spencer had ownership in this. They would be together even if it was Alecto that held all the power, Spencer would have things of her own too...
"Now," she coaxed firmly. "Lay with your chest flat against the desk and don't you dare move."