Welcome to Amy Alkon's HumanLab: The Science Between Us, a weekly show with the luminaries of behavioral science and psychotherapy.

Dossie Easton is co-author of a terrific book, "The Ethical Slut," that I've been recommending for years to people who ask me about sexually open relationships -- whether they can handle one, how to handle them, all the questions they have.

This promises to be a fascinating and eye-opening show, and one not to be missed even if you aren't personally interested in having more than one sex partner. Dossie will get into myths about ways we view love and sex, and smarter, healthier ways of thinking that are illuminating for all.

Join me and all my fascinating guests every Sunday, 7-8 p.m. PT, 10-11 p.m. ET, at blogtalkradio.com/amyalkon or subscribe on iTunes or Stitcher.

Support my show and change your life by buying my "science-help" book, "Unf*ckology: A Field Guide to Living with Guts and Confidence."