A taboo tale of forbidden desire unfolds in this Spanish erotic narrative. A young woman, desperate to please her professor, offers him a private, after-hours lesson. As they work through complex problems, her eyes linger on his growing erection. Unable to resist, she reaches out, feeling his immense, pulsing cock. He gasps, his eyes filled with lust. She unzips him, revealing a monstrous, veined shaft. With a hungry moan, she takes him deep into her throat, gagging slightly as he hits the back of her mouth. He grabs her hair, fucking her face as she eagerly sucks, her body aching for more.