Inked words dance across the page as Masakazu Osino's diary entries become increasingly explicit, her fingers trailing down to stroke her big clit. Erocom Yki, her professor, can't help but eavesdrop, his cock straining against his pants. He steps closer, his eyes locked onto her big, natural tits as she masturbates. His hand replaces hers, his fingers plunging into her wet cunt, feeling her big clit pulse against his palm. She squirts, her juices coating his hand as he fucks her with his fingers, her diary a distant memory, her moans echoing through the room.