Guys, what it actually means is that she can't have sex with a person who she has no power over, who she can't manipulate, who doesn't care enough about her to do anything for her. Basically, everyone who will not scarifice himself for her comes into "sex without emotions category".

It means, "I don't like sex with person where we both can enjoy, I only like sex where I get paid like a prostitute in some way, it can be money or you being her dog".