Instead of calling it pre-marital sex I think multiple-partner sex is more appropriate since I see no immorality in having sex with an opposite sex adult if both are building a common future and they plan on staying together, regardless of being married of not. I think one might argue that to have many sexual partners and cheating on your mate is in fact immoral, not based on religious beliefs but in the simple moral structure which society and our family inducts into us.
IMO I think the choice is personnal but as a man I wouldn't choose as a wife a woman with a "diverse background"....even If I have a diverse background. Now, you might ask what right do I have to want a virgin-out-of-the-nunnery while being someone with a bohemian past? No right whatsoever but heck, I did find one!
