Karin, a buxom student, offers an exclusive service to her sensei, focusing on her ample assets. She starts by teasing him with her large, round ass, jiggling it seductively. The sensei, unable to resist, grabs her hips and pulls her closer, his large cock pressing against her. Karin moans, eager to please, and grinds against him. She then turns around, facing him, and takes his massive cock in her hands, stroking it gently before bending down to take it in her mouth.