As the fire crackles, so does the tension between the siblings. She watches him intently, her breath hitching as he stretches, his shirt lifting to reveal a hint of abs. He catches her gaze, a wicked glint in his eyes. Her heart pounds in her chest, her body aching for a touch that's taboo. She bites her lip, her mind racing with images of him, of them, of pleasures she's never experienced. The fire burns hotter, mirroring the hunger within her.