The older witch's narrowed eyes were enough to send a spike of fear down hr spine. While she managed to keep a straight face and not show her intimidation, you could see the gleam of fear in her eyes. As well as a fair amount of arousal as well. "Y-yes. I don't want you...treating her like you do me.."
Spencer almost groaned herself as Carrow groaned and responded to her. The fact that she could provoke such sounds from such a strong woman made Spencer almost weak at the knees with pleasure. It drew out this urge to please the woman she was straddling at the moment.
Continuing the dance, Spencer gripped the back of the chair, an arm on either side of Carrow. To the beat, she started rolling her hips, her chest still near Carrow's face. "I'm only following your assignment, professor." she said with a surprisingly playful tone, despite the intense adrenaline rush that came with this mix of fear and arousal
"It would be very unprofessional of you, professor." Spencer responded straightly, purring the word 'professor' in a tone she had never known she could even have.