Upstater, this is the second post in which you've claimed some Christian faiths do not prohibit extramarital sex. I certainly don't claim to be a theologist but if this is true it is news to me. Please educate us: exactly which Christian faiths condone extramarital sex?
It depends on what you mean by condone. Some of them don't forbid it. Presbyterians, Methodists, Lutherans, Unitarians, etc. They counsel that marriage is best, but it's not forbidden. The United Church of Christ and the Unitarians especially don't make a big deal out of it.
First, to answer to 1996's posts, Judaism, Hinduism and Buddhism all permit premarital sex. Yes, you heard right. Premarital is ok in Judaism.
Some links and quotes for you:
http://www.americanpresbyterianchurch.org/sex.htm
http://www.religioustolerance.org/hom_epis6.htm
Think about this: some churches do not condemn homosexuality. So, how are gays supposed to have marital sex if, in most states, they can't get married? It follows then that these churches don't forbid premarital sex.
From the Episcopal church [note, this is the church that recently confirmed gay bishops, and they have had female bishops for a long time]: "A document commissioned by the House of Bishops of the Episcopal Church (Continuing the Dialogue, published by Forward Movement, Cincinnati, 1995) stated on page 45 that the passages in this Biblical story (SONG OF SONGS )are "in praise of sexual love, celebrating youthful passion, with no reference to marriage.... It affirms that sexual love is in itself good and beneficial." "
Here's just one line from the Presbyterians: "total intimacy should happen in a relationship of total commitment, which marriage is intended to be. We advocate responsible behavior, understood as sexual expression that matches the seriousness and permanence of the relationship."
From the Lutherans: "having casual sexual relations is sinful because this does not proceed from or contribute to respect, intimacy, and care of the other. Promiscuity is inconsistent with our identity as Christians (1 Cor. 6:12-20). Being sexually active in order to be popular or only to gratify sexual desire is morally wrong."
I guess it depends on the degree of intimacy.
Look at this site:
http://www.beliefnet.com/features/chastity_chart.html