With twenty-five essays, seven of which are new to the eighth edition, this best-selling volume examines the nature, morality, and social meanings of contemporary sexual phenomena. Topics include: sexual desire and activity, masturbation, Sexual orientation, asexuality, transgender issues, Zoophilia, rape, casual sex and promiscuity, love and sex, polyamory, sexual consent, sexual, perversion, sexual ethics, objectification, BDSM, sex and technology, sex and race, and sex work. Updated and new discussion questions offer students starting points for debate in both the classroom and the bedroom.