I moved my hand from her boob to her mouth, silencing her squeal while f*****g her even harder. She squealed again, but it wasn't too loud and we were deep into f*****g anyway. Nothing could have stopped us. We were connected on a higher level than we ever could have dreamed. f*****g my sister on my bed. My hand over her mouth, keeping her quiet. The only sound was that of my balls slapping underneath her butt. She looked up at me, her forehead wrinkled and my hand covering my mouth. She grabbed my hips, guiding me, telling me to f**k her harder. So I did. Her owns hips rocking furiously under mine, her legs began to tremble as she neared orgasm.
So I f****d even harder, still not making much noise. Driving my c**k in deeper with each thrust, she squealed again and her legs closed tightly
