I'm a college student working at a convenience store. A little later, a married woman joined the store as a part-time employee. She's a mother of one and always comes to work on her mamachari (a bicycle for women). One day, I had a brief affair with her during my break. She's had sex for the first time in a long time, and she's fired up, leading to repeated affairs. I pick up a box of condoms from the sales floor. "Hey, do you want to try it with me?" Missionary position, cowgirl position, sitting position. "Convenience stores feel like love hotels late at night." In the bathroom...