Having sex in a car is usually a last resort, born from the trappings of youth. For Susan Silas, it was a midlife necessity. While working as a production accountant on a sitcom, Susan met a teamster. Despite having little in common — he was former military; she had been an antiwar protester — they hit it off. But, without a private place to go to, they found themselves having sex in the back seat of the teamster’s car. It wouldn’t be the last time. Today, Susan shares how car sex turned into something deeper.