There is perhaps no place in the world today where the stakes of partying and having sex are higher than in present-day Iran. Drinking and dancing can lead to arrest by the morality police and a punishment of up to 70 lashes. Consequences for sex outside of marriage can be even more severe-up to 84 lashes, or even public execution. But even under the threat of such harsh punishment, a sexual revolution is taking place. Iranian youth continually...