I love that no one took the time to respond to my post on the last page because it didn't fit with what they wanted which was to bash our religion.
Let me say something very clearly. Hadith =/= the Quran. You cannot change the meaning of something written clearly in the Quran based on a Hadith. One is written by God and the other by man.
In this instance, only consensual sex between two people living together (the man and the concubine) WAS*** halal back in 600AD when slavery was permissible (and that was under many rules which essentially meant they had to be treated like a free person - they have to be treated like an equal, be fed, clothed as you are, not beaten, not raped, you can't joke that you will free them because if you do that will free them, etc.). It is now HARAM to have slaves, therefore it is HARAM to have sex with slaves.
So essentially you're only continuing to argue about this because you want to paint Islam as a barbaric religion when it only goes by human nature.