The siblings' secret is a dance of taboo, a tango of temptation. They meet in the dim light of the hallway, their hearts pounding in sync. Her hand reaches out, tracing the outline of his cock through his pajama pants. He's rock hard, ready for her. They slip into her room, the door barely closed before they're on each other, their hands and mouths exploring, tasting, taking. She straddles him, sinking down onto his cock, her wetness enveloping him. Their secret is their bond, their pleasure, their sin.