Sex is probably the one thing that few people struggle to find motivation for. It’s certainly not exercise, which we all know is good for us but can be extremely hard to pull off every day. It’s more like chocolate or sunshine. More is usually better.

In my junior year of college, before I’d learned much about feminism, I became fascinated by what we now call the 1970s “golden era” of pornography. Porno chic! Clitoral orgasms! A little film called “Deep Throat”! Being a lusty, modern woman, I …

My gateway drug, in terms of finding better fiction to read, was Scott Spencer’s blessedly good 1979 novel “Endless Love.” No macaroni. No pouchy globes. No clouting. Just beautiful, hot, honest sex writing about, in his words, “that terror you …