Why is it that people make all of these films about black and white interracial couples but deem the fact that muslims only allow it to happen one way as being an acceptable cultural tradition? It's shit.
Muslim men are allowed to intermarry with any girl that believes in any of the Abrahamic religions, but not allowed with any other religion. Unless of course the girl converts.
The way, intermarriage occurs between a Muslim girl and a non-Muslim guy by first the non-Muslim guy taking an oath to convert to Islam then the actual wedding ceremony between the Muslim girl and the NOW-Muslim guy can happen.
If you're talking about sex, no one is allowed to have sex before marriage anyway.