In the dim light of their shared bedroom, Edgar and his sister negotiate a secret arrangement. He watches her, his eyes lingering on her body as she gets dressed, her curves barely concealed by her thin nightgown. She notices his gaze and, in a moment of courage, admits her taboo desire for him. They seal their pact with a passionate kiss, their bodies pressing together. But as they begin to explore each other's forbidden territories, they're interrupted by a knock at the door, forcing them to hastily cover their bodies and hide their secret.