In the heat of the afternoon, a curious brother enters his sister's room, his eyes landing on her tiny thong lying on the bed. He picks it up, his heart pounding as he inhales her intimate scent. Unable to control his desires, he begins to pleasure himself, his cock throbbing as he imagines his sister's hands on him, her mouth, her body. He strokes faster, harder, until he's grunting and coming all over her thong, staining it with his lust.