The tutor's eyes smolder as he watches his student struggle with her algebra, her tongue darting out to wet her lips in concentration. He can't help but imagine that tongue on him, tasting him. He decides to introduce her to a different kind of equation, one involving their bodies. He leans in, his breath hot on her ear, "What if I told you, the answer to your problem is right here?" He guides her hand to his crotch, feeling her hesitate, then explore. She looks up at him, her eyes wide but curious. He smiles, "Let's find the solution together." He lifts her onto the desk, pushing her skirt up, revealing her innocent panties. He slips them aside, finding her wet, ready. He plunges in, filling her, teaching her the solution to their mutual desire.