Sam's guest in this week’s Book Club podcast is Olivia Fane — who argues in her new book Why Sex Doesn’t Matter that, well, sex doesn’t matter. She says that the idea that sex and love are related is a damaging twentieth-century invention, and that if we could just recognise that sex was no more significant than scratching an itch we’d all be wiser and happier. They talk about how she reaches that conclusion — and what, if she’s right, we ought to do about it.

Presented by Sam Leith.