Logic tells us that the ratio would be 1: One of the more significant findings in these studies is the importance of care for children born out of wedlock. If she has lived away from her parents for more than a year, she has—at the minimum—slept with many men whose last names she did not know, including one-night stands that did not involve condoms. Many girls go to great lengths to hide their slutty past, knowing deep down the low value it conveys for being a suitable long-term partner, but there is one easy indicator that should tell you beyond a reasonable doubt whether she is a slut or not. Science has several factors that help explain it. Men love that so many women and such a variety of women are open to casual hook-ups. Unlike other stratified societies, where individuals are tied to their families by strict cultural norms and expectations and by family honor codes, ours emphasizes personal freedom.