It was that time again. My fitness coach looked after me today because I would like to eliminate one or two problem areas on my body. So I asked him if he could recommend a good exercise to tone my butt a little. He had a perfect idea that I also really liked. He asked me to take off my pants, he stood behind me and before I knew it, I already had his big cock in my ass. Then I had to start the treadmill and start running. ....