Ten years after last seeing her student, a piano teacher pays her a visit. Not only has her piano skill improved, but she's matured into a stunning woman with a voluptuous figure. Her full breasts and swaying hips, along with her sensual movements, captivate him. Wearing a thin white dress that reveals her lingerie underneath, she holds his gaze completely. The teacher then proposes a special lesson titled "Latest Adult Sexual Harassment Class." Gradually, he begins touching her beautiful breasts and tight ass, drawing soft moans from her. When he criticizes her finger technique as too childish, his shiny black cock takes the place of piano keys, demonstrating the proper touch. Gently stroked at first, his shaft is soon licked and sucked with eager, wet licks. Finally, they climax with a loud, forceful standing doggystyle creampie, completing a lewd melody of naughty sounds and beautiful piano music.