In a cramped study room, a brother and sister, both students, find themselves alone and restless. As they study, the tension builds, and they can't help but steal glances at each other. The sister, clad in a short skirt, uncrosses and crosses her legs, drawing her brother's gaze. He adjusts his pants, trying to hide his growing bulge. Unable to resist, she reaches under her skirt, fingering herself while keeping her eyes on him. He watches, entranced, before joining her, stroking his hard cock under the table. Their eyes meet, and the room fills with their quiet moans and the sound of flesh on flesh.