There's more where that came from: “In my book, Nina Hartley's Guide to Total Sex, I devote three chapters to multi-partner sex. One chapter specifically addresses two men with one woman, and the ...

Feminist, registered nurse, sex educator and star of more than 400 adult films, Hartley's sex guide is a thorough, level-headed and straightforward look at all things sexual. Eighteen witty, ...

Most of us have entertained the notion of getting it on with two people at once. Fewer of us have actually done it. Author, sex expert and porn legend Nina Hartley, however, has engaged in hundreds of ...