Actually, that feat is easier achieved then most people may think. Just follow a few simple steps. The most important sex organ is the brain. To start with, you want to stimulate sexual thoughts. Obviously, there are several ways to do this.
Women are usually very receptive to pornographic movies.
But to invite a girl you haven't slept with to a seedy cinema, or to play a pornographic tape when she first visits you at your place, won't generate love. You will be perceived tasteless. You can watch pornographic movies together later in your relationship, when a bond of love already exists, but you shouldn't from the start. The alternative is to talk. What you say, you can fine-tune to the person and the situation.