I bet that if we asked ten people (men or women) off the street whether men are generally more eager for sex than women, nine out of ten would say, "Of course!" This commonly accepted sex difference has been confirmed by numerous scientific studies, one of the most famous being the Clark and Hatfield study, "Gender Differences in Receptivity to Sexual Offers," published in the Journal of Psychology and Human Sexuality in 1989. In this classic study, attractive college students who were confederates of the researchers approached students they did not know and asked them one of three questions: (1) "Would you go out with me tonight?" (2) "Would you come over to my apartment tonight?" or (3) "Would you go to bed with me tonight?" For the first question, 50% of both sexes said "yes." For the second question, 69% of the men but only 6% of the women said "yes." For the blunt sexual proposal, 75% of the men-but not a single woman-replied "yes." A number of replication studies have yielded similar results.
And nine out of ten people off the street would yawn and say, "So what? Everyone knows that men are more eager for sex than women. It is not surprising that more men than women would accept an offer for casual sex."http://www.psychologytoday.com/blog/cui-bono/201111/are-women-driven-sexual-desire-men-part-i-new-research-says-yes