I used to date a girl who was just for sex. Leona would come whenever I called her, and she was a convenient girl who was convenient for satisfying my sexual desires. "I'm getting tired of having sex with her," I said, so I dumped Leona and started dating my best friend Ryoko. Two years later, I met Leona again at a dinner party with friends for the first time in a long time. I was aroused by the beautiful woman who had become my ex-sex friend. So I called Leona when she was away for three days for some business... Choking, spanking, restraining, irama... I couldn't do it with my real girlfriend, but I could do whatever I wanted with my masochistic sex friend, and she was my convenient hole for the three days I was away.