In the dimly lit hallway, Paulo White's lens captures the tense exchange between a young sister and brother, both struggling with desires they dare not voice. As they retreat to their rooms, the sister, a novinha, can't resist the urge to touch herself, her fingers tracing the curves of her body, imagining them replaced by her brother's. He, too, falls prey to fantasy, his hand wrapping around his hardness as he envisions her naked form. Their secret moments are interrupted by a knock at the door, leaving their forbidden game of cat and mouse unresolved.