On Ep 27, the Swingset interviews Christopher Ryan, author of the bestselling book Sex At Dawn which challenges the idea that monogamy is natural and ingrained in human beings. We discuss bonobos, a species that sexually is far more similar to us than chimpanzees, and the very porn-like videos of this species enjoying themselves. We postulate that the matriarchal societies described in Sex At Dawn are very reflective of the swinging and polyamorous lifestyles