Bored and alone, an unseen brother begins to pleasure himself, his strokes steady and rhythmic. Unbeknownst to him, his curious sister, hidden in the shadows, watches, her own hand slowly inching up her inner thigh. As his moans grow louder, she can't help but wonder what his cock looks like, what it feels like. Her imagination runs wild, her fingers delving deeper into her wet pussy, matching his pace. Just as he's about to climax, she steps into the light, startling him, his load shooting onto the floor as he struggles to cover himself.