As Americans remain single longer than ever and singles outnumber their married counterparts, there is no standard for sleeping with new people today. partners. According to the Pew Research Center, in 2007, only 38 percent of American adults thought premarital sex was bad, a number that has likely only declined in recent years. (FWIW, studies suggest there's a good reason to do it sooner rather than later if you want to enjoy great honeymoon sex.) There's no "right" time to decide when you are ready to have sex with someone. It's kind of a thing: different strokes for different people. What makes couples end their relationship? Do women who sleep with men end up getting married? Of course! Millions. There are also millions of women and men who get to know their partner through other means before getting physical. It depends on how much effort you put into your relationship. One-night stands happen, but so does love at first sight. There are players looking for an easy connection and there is Prince Charming.