In the dimly lit room, Rika and her brother stand close, their bodies barely touching. Her breath is hot on his neck, her hands trembling as they reach for his belt. He's tense, torn between his desire for her and the societal norms that dictate they shouldn't be doing this. But as she guides his hand between her legs, he feels her warmth, her wetness, and all hesitation fades. He picks her up, her legs wrapping around him as he carries her to the bed, their lips locked in a passionate, hungry kiss.