Lady Shay has a nice ass and she knows. She loves to make people have fun and she felt that enhancing her jerk off instructions was the best way to do so and have people enjoy themselves and get the orgasm they need. That is why she chose to enhance her skills and when she did so, she had a lot of happy guys who benefited from her jerk off instruction skills.
Lady Shay has an ass that is out of this world and she used it to get this guy to jerk off. She had heard him say that he will never jerk off and that he had never jerked off. So she teased him and when he took the bait, the mistress went ahead to turn him on and when he wanted to have her, she told him she was turned on by a guy who jerked off and he did it.