A firsthand recounting of a wide-open relationship, told with unflinching candor from the male perspective.Adam had spent most of his life pursuing adventure—climbing some of the world’s steepest mountains, snowboarding dangerous backcountry terrain, and BASE jumping off of cliffs.Jane was a sex educator with a PhD in psychology, a female sexuality empowerment activist—and a self-described slut, who rejected monogamy and the societal norms of what a sexually well-behaved wo...