I recently was doing a reading concerning a friend of mine ( a guy) , the question being a general one, and the spread being one which sets up a sort of background of the querent, detailing their strengths, weaknesses and personality. The empress reversed appeared in the "weakness" position for this man. The first thought that came to me was that he did not know how to easily express love and caring for others. Having known him for years and even at one point, being more than friends with him, I know this to be true. He does not like to display emotion, nor is he able to discuss the way he feels without being VERY uncomfortable, so it's like whoever he is with at the moment romantically must inevitably end up starving for love and affection. This is a direct inversion of the abundance of nurturing love and the ease with which it is expressed, that the upright card represents. Another issue of the empress reversed as previously mentioned by others, is the "smothering" energy. He is a man who loves his mother dearly, but she gets in the way of him making decisions independent of her influence. Everything she says to him is law, and he worships her and she, him. When we were together it made me sick actually..at one point a couple of their exchanges were too much for me..it bordered on incestuous. (Needless to say this added to my desire to scramble out of that relationship. I've since found he's better as my friend and i'm better off not being too close to him. )
But in short, he is a "mama's boy". So I would just reiterate what others have said and say that the empress reversed can either mean not ENOUGH nurturing and love, or too MUCH of it, to the point where one person is unable to cut the umblical cord so to speak.
There are of course other meanings, sex without love, unwanted pregnancy blah blah blah. However for ME, the empress, when she's reversed, usually means that either someone is not giving/ getting love despite the fact that it is desperately needed, OR it means that someone is a lil co-dependent and should strengthen his/herself as an individual in order to just BE naturally, to find their own essence, as the upright Empress represents.