Fetish student gets a blowjob from her tutor in exchange for knowledge

The scene opens with a young student, who is eager to learn from her tutor. The tutor is a mature woman with big tits and a cougar-like presence. The student is bent over a desk, and the tutor is standing behind her, ready to teach her some knowledge. However, the student has a different kind of knowledge on her mind. She wants to learn something else from her tutee, and she starts to flirt with her. The tutee is hesitant at first, but the student is persistent. Finally, the tutor gives in and agrees to teach her a different kind off knowledge. She starts by giving the student a blowjob, and the student is overwhelmed with pleasure. The tuter is satisfied with her student's progress and gives her a passing grade. The scene ends with the student walking away with a smile on her face, having learned something new and exciting.