Women need to feel a degree of sexual intimacy before sex becomes desirable… For women, intimacy sometimes results in sex; for men, sex sometimes results in intimacy. (Marina Muratore)
That is for sure. Some men are dangerous. But most women most of the time are not looking for a one-off opportunity for intercourse. They are hoping for a relationship. This is why they object to married men who are on the internet dating circuit. Men just look for sex. Women hope that by offering sex, they will tempt a man into a supportive and loving relationship.