I called an agency and ask them if they had anybody that could give me a good screw you with a strap on? They told me no problem and they would have somebody over in a half an hour. I heard a knock on the door and my surprise it was a good looking black girl who seemed to be only about 19 years old and at the time I was in my 40s. She was all business and followed me in the bedroom, and I actually helped her strap on my harness and dildo. I greased my own ass, and she knelt behind me and gave me the best 30 minute rhythmic fuck of my life giving me a full on deep thrusts with her powerful hips, screwing me the entire time and not taking a break. She didn’t want to give me your name or offered to come back, and I felt bad that she didn’t want to ride, but that was one of the hottest, butt fucking‘s I have ever been given from a stranger.