The teacher's skilled fingers dance along the student's rigid shaft, tracing its veins as she expertly jerks him off. Her other hand cups his balls, gently massaging them as she builds a rhythm, her mouth and hand working in tandem. She can feel him swell, his breath coming in ragged gasps, and she knows he's close. But she's not done with him yet. She wants to draw out his pleasure, to make him beg for release. She slows her pace, her tongue flicking out to tease his slit, tasting the precum that's beading at the tip.