My step-sister, the daughter of my father's new wife, is a slutty little devil. She gets excited when she finds out that I'm peeking at her panties. When I peeked at her getting changed in the bath, she invited me to "wash your back." When my hard cock hits her firm ass, she reacts with a twitch and squeezes it. Before we knew it, we were washing each other and touching each other. Even when we were alone at home, she kept showing me her panties, and I couldn't hold back anymore. When I attacked her, she got in the mood and before I knew it, she was staring at me and giving me a blowjob. She got on top of me and we started having sex.