I was between relationships at the time, about thirty-two years old, and had been sleeping with a twenty-one-year-old girl, but it was understood to be an officially open liaison (although I was the one sleeping with other people most often). I think she...

The second girlfriend I’d ever had totally opened my eyes to what was possible when it came to sex. I knew her in high school, but we didn’t date until she was in college. I was kind of shocked she had slept with as many guys as she had, as she seemed kin...