Nao, the innocent, and Sei, the curious, find themselves alone one afternoon. With nothing to do, they start to explore each other's bodies, tentatively at first, then with growing passion. Nao's soft moans fill the room as Sei's fingers dance on her clit, her inexperience making each touch more intense. Sei's cock stiffens, pressing against his jeans, eager to feel Nao's warmth. They strip each other, their hearts pounding, as they discover the joy of first times.