She is humiliated by being made a nude model for drawing by mean students! A G-cup female teacher is blackmailed after her masturbation is secretly filmed, and her lewd body is thoroughly watched in detail. She is forced to draw blowjobs, her anus is exposed with the wrinkles spread wide, balloons are tied to her nipples and she is forced to pose in an M-shape, and she is forced to draw sex. She becomes the students' sex slave and is forced to cum inside!