A chaste, untouched mouth meets its match in a throbbing, veiny dick. The uninitiated beauty, guided by a stern, leather-clad dominatrix, learns the ropes of cocksucking. She moans around the invading flesh, her inexperience evident in her awkward movements. Yet, she's a quick learner, her tongue swirling, her cheeks hollowing, as she takes more and more, leaving her mentor impressed and her own mouth well-used and glistening.