Virginity pledges. Chastity balls. Courtship. Side hugs. Guarding your heart. Evangelical discourse on sex is more conservative than I've ever seen it. Parents and pastors and youth group leaders told us not to do it before we got married. Why? Because the Bible says so. Yet that simple message didn't go very far in shaping our sexual decision-making.

So they kicked it up a notch and staked a battle over virginity, with pledges of abstinence and accountability structures to maintain the power of the imperative to not do what many of us felt like doing. Some of us failed, but we could become "born again virgins." Virginity mattered. But sex can be had in other ways, and many of us got creative.

Then they told us that oral sex was still sex. It could spread disease, and it would make you feel bad. "Sex will be so much better if you wait until your wedding night," they urged. If we could hold out, they said, it would be worth it. The sheer glory of consummation would knock our socks off.

Such is the prevailing discourse of abstinence culture in contemporary American evangelicalism. It might sound like I devalue abstinence. I don't. The problem is that not all abstainers end up happy or go on to the great sex lives they were promised. Nor do all indulgers become miserable or marital train wrecks. More simply, however, I have found that few evangelicals accomplish what their pastors and parents wanted them to.

Indeed, over 90 percent of American adults experience sexual intercourse before marrying. The percentage of evangelicals who do so is not much lower. In a nationally representative study of young adults, just under 80 percent of unmarried, church- going, conservative Protestants who are currently ...

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