He kissed me for several minutes while he fingered my pussy and then he rolled on top of me and started pushing his cock into me.It hurt! It hurt like...hell and I was surprised that my scream didn't wake John (or half the neighborhood) up, but then suddenly I wasn't a virgin anymore. Mark kept fucking me until the pain started to fade and I began feeling good and then he gave a little grunt and I felt him cum in me. Once he got off he became concerned."I didn't know you were a cherry, why didn't. We made eye contact as she pulled it off completely. Her hands rubbed her tits for a moment before I got a clear view. “Are you looking?”My crazy instincts reacted again, “Yes.”She pushed me and said “Stop!” but she didn't cover up or try to hide herself or kick me out of the bathroom. I began to stroke my cock. My heart was beating faster and faster as I got my own private striptease from my sexy sister. She turned her back towards me and leaned forward as she pulled off her jeans and showed. ‘In those clothes?’ ‘Not much choice,’ I agreed. ‘That’s why I was taking my shirt off.’ ‘I see,’ she commented, as her eyes once again drifted to my chest. ‘Might you have a cell phone I could borrow? Mine doesn’t get coverage here.’ ‘Sure. Are you from around here?’ she asked, but with a real questioning tone like she already knew better. ‘No. Chicago.’ ‘Who you want to call?’ ‘A service man?’ ‘I doubt you can find anyone local working this late on a Friday.’ ‘Oh? You don’t think so?’. It didn't take long and she was moaning and cumming again and our new friend had a perfect view. Now she wanted to see more of him. Steph raised herself up on her elbows to watch his show and that is when he really began rubbing his cock harder and faster. He was about to cum but slowed down so he could keep pace with us and not shoot off yet. I think he wanted to see Steph and me fucking and knew that was going to happen very soon. Steph had already cum twice and I knew she would want to cum.