Professor punishes student with a whip and gagging

The professor was furious as his student had failed his test. He decided to punish her in a unique way. He whipped her bare ass with a leather strap, leaving red marks on her skin. The student was too scared to protest and just let him continue. The professor then put a gag in her mouth and tied her hands behind her back. He then proceeded to fuck her ass, using her as his personal toy. The student moaned in pain and pleasure as he thrust deeper and harder into her. The professor was enjoying his power over her and continued to dominate her. The student then realized that she was enjoying the pain and pleasure and started to enjoy the experience. The professor finally finished on her face, leaving her with a satisfied smile. The student had never been so turned on in her life and was looking forward to the next time she would be punished by her professor.