The way that the engorged head of his cock pounded against my womb with each powerful thrust as he rode me like a wild animal drove me wild with need. Our coupling became so intense as we ground our sex together, my pussy clenching uncontrollably around the girth of his cock. We mated like animals in heat, as if we couldn't get enough of each other, as I clawed and dug my fingernails into his back. I cried out his name until my voice was hoarse, and I forgot about everything except the pleasure that he was feeding to me. Everything else melted into nothingness as I forgot about our indecent relationship and that he was supposed to be my stepbrother. I even forgot about his upcoming engagement, because all that mattered at that moment was that he was in my arms.