Selina Bentz, a bespectacled brunette, and Sona Bella, her uniform-clad classmate, innocently discuss literature at a book club. Their professor, Donnie Rock, joins them, his eyes gleaming with lust. He propositions them for an unconventional free-use threesome, exploiting their naivety. The girls, intrigued and aroused, agree. In a student lounge, they stand in doggystyle, Rock taking turns plunging into their tight, uniform-clad bodies, using them for his pleasure while they moan in forbidden delight.