Alecto grinned evilly. She had really only intended to spank her once but her reaction, one she felt deep in Spencer's cunt as she clenched around her fingers, was impossible to ignore. Bringing her hand down three more times, Alecto stared at her pale flesh as it turned delightfully pink.
Alecto felt a surge of triumphant as Spencer begged her not to stop. Luckily for her, there was no way she was going to no matter what the girl had said.
"Good girl," she praised her. "Staying bent over your desk just like I ordered you to. Such a good girl..."
She could tell that Spencer was close. Alecto kept her pace quick and steady as she pushed Spencer closer and closer to orgasm. When she cried out, Alecto performed just a few more strokes with her fingers then whipped them away.
Leaving her with an orgasm she was not allowed to ride out, Alecto knew that Spencer would want a proper one and that would make her more pliable when next they met.