"Good. I knew that about you," Alecto purred, her lips brushing Spencer's ear as she spoke. "We just need to teach you to control that mouth of yours when you are around...me." She knew what she wanted Spencer to be to her but that didn't need to be explained at that moment. There would be plenty of time for that.
It seemed that Spencer couldn't keep herself in check. Professor Carrow knew that she would need to make her learn. "You think a policy is going to protect you?" Her left hand moved up to take Spencer firmly by the back of the neck to hold her in place. The other roughly flipped her skirt up before resuming spanking.
It was gentle like it had been before. She knew Spencer would feel the stinging heat immediately. She spanked her like that a handful of times, punishment for her mouthiness, then her pace and strength decreased again.
As she spanked, Alecto leaned down for a good look at the girls knickers. She loved that she could see her skin was all red and angry from the spanking but she wanted to see how else she responded.