I was jerking off in my step-dads room because its more private and my annoying step sis, Holly interrupts me and starts fucking with me. She told me I was doing it wrong and started helping me out, jerking my dick and sucking it! She even sat on my cock and rode it and I finished in her mouth! On Monday I found her report card in the trash and told her Id show our parents if she doesnt suck my dick. Holly obliged and blew me until I came! Then a few days later I spy on Holly touching herself in the shower! Were both horny so we end up fucking on the bathroom floor, then take it to the bedroom where I pound into her tight pussy until I explode on her face!