In a secluded study room, a stern professor, inked with tattoos, teaches two lesbian students a lesson in dominance and submission. She commands them to strip, revealing their stockings and piercings. The professor smacks their asses with a strap-on, leaving red welts, before replacing it with a thick, vibrating dildo. She roughly fucks them, making them cry out in pleasure and pain, alternating between pussy and ass, leaving them begging for more.