I don't do casual sex, I can't fathom why anyone would even want to have casual sex. But that is me. Sex to me is THE most intimate thing I can do with another person. When I have sex with my love, I give her a part of me, I look into her eyes knowing the closeness I am feeling with her, I lose myself in the feeling of being with her. This I cannot do "casually". But again, this is just me. I can't separate the act of making love, even when we are rough and we do get rough, with the emotion of love.