In the dimly lit study, Professor Dotadu, a silver fox with a reputation for pushing boundaries, decides to give his students an extracurricular lesson they won't forget. With a mischievous glint in his eye, he begins to strip, his clothing falling away to reveal a body that belies his age. His cock, thick and uncut, stands at attention, ready for the task at hand. He strokes it slowly, his gaze locked on the camera, as he thanks his students for their effort. The room fills with the sound of his heavy breathing and the slick sound of his hand moving up and down his shaft. He's not just thanking them, he's showing them the true meaning of 'appreciation'.