In a fit of lustful rage, my step-sister and I violently tore at each other's clothes. She pounced on me, her full breasts pressed against my chest as she aggressively ground her hips against my throbbing erection. Without another word, she impaled herself on my cock, her tight pussy instantly eliminating any lingering doubts about our blood relation. The room was filled with the sounds of skin slapping against skin and grunts of pleasure as we violently rocked back and forth. My hands dug into her round ass cheeks, bruising them with every brutal thrust. We moved together in a primal dance - our bodies coated in a sheen of sweat and rising to the crescendo of our climaxes. With a loud scream, she convulsed around me, and I emptied myself inside her, filling her up with my essence.