Alone in my room, I'm a prisoner to my desires. My step-sister's scent lingers, her voice echoes, and my cock aches. I strip, my huge erection standing proud. I spit in my palm, lubricating my length, and begin to stroke. My mind races with taboo thoughts, my body tensing as I approach the edge. I imagine her, my stepsister, watching me, wanting me. With a roar, I cum, my big load painting the sheets, my body finally finding release, only to start the cycle again.