After drinking too much at a company gathering, he is helped home by Miyashita, his junior coworker of two years. With the last train gone, she sweetly invites him to continue drinking at her place. She makes him remove his dirty trousers, notices that his cock is still hard, and starts teasing him with whispered dirty talk and a slow handjob. The usually sharp-tongued junior keeps his sensitivity climbing until they spend the entire night and well past the first morning train fucking wildly, stretching the session to 17 ejaculations.