HBAD-368 Arrogant sadistic female teacher trapped and raped, naked in front of students, humiliated with cum all over her

Under a harsh educational policy, a failing male student is subjected to corporal punishment by an S&M female teacher who whips his penis with a whip. However, this was all part of the principal's trap; she is threatened and forced into becoming a sex slave, raped, and her penis is thrust into her violently until she can't take it anymore and writhes in agony. The female teacher falls from being harsh to becoming a sex slave, and then, as if seeking revenge, she is stripped naked by the students and raped, covered in semen.