RCT-621 Yuka Tachibana, a female teacher who was used as a perverted nude drawing model by her students

She is humiliated by the students as a nude model for their drawing class! A G-cup female teacher is blackmailed after her masturbation is secretly filmed, and every inch of her lewd body is thoroughly inspected. She is forced to draw a blowjob, spread her anal crease open and expose it, tie balloons to her nipples and make an M pose, and draw a humiliating sex scene... She becomes the students' sex slave and is forced to get creampied!