On a spring afternoon, sunlight streamed through the curtains onto the tatami mat. The artistic young woman, Rina Onodera, wore a loose white shirt, her skirt slightly lifted, revealing her fair thighs. She sat at her desk, pretending to peruse a poetry collection, but her eyes kept glancing at the man beside her. The man gently unbuttoned her shirt, and her large breasts sprang out, their pink nipples trembling slightly in the air. Rina bit her lip, letting out a suppressed moan, her legs involuntarily clamping together. The man pressed her down onto the tatami mat, his fingers slipping under her skirt, touching her already wet vulva. He thrust in hard, Rina's waist arching, her juices flowing down her thighs. With each thrust, her gasps turned into moans, her shirt soaked with sweat, clinging to her full curves. The man flipped her over, thrusting into her from behind, the sound of her buttocks slapping against each other echoing. She tilted her head back, her eyes glazed, crying out, "Don't stop." Finally, the man ejaculated inside her, and Rina trembled all over. The afterglow of her orgasm made her collapse to the ground, a satisfied, lewd smile on her lips.