Ethics and Sex presents a systematic study of the nature and moral significance of human sexuality and of the major issues in sexual morality. The book is divided into two main parts. Part One gives a critical analysis of the key conceptions of human sexuality. Part Two discusses the most important issues in sexual morality: monogamy; adultery; prostitution; homosexuality; paedophilia; sexual harassment and rape. In this controversial and accessible book, the author demonstrates that many of the prohibitions that make up conventional sexual morality cannot withstand critical scrutiny.