3-date rule is now the 5-date rule. Getty Images // 3-date rule is now the 5-date rule. Getty Images (3-date rule is now the 5-date rule. Getty Images)

The three-date rule, as firmly practiced by Charlotte York in "Sex and the City," stated that the third date was the appropriate time to have sex with a guy. But according to this survey, the old three-date rule is out, and now, women are waiting five dates before having sex. (Evidently, they are also waiting for 12 text conversations, two gifts, and three movie nights. Um, OK I guess?)

Sure. Five dates seems like an OK amount of time to spend getting to know each other. But so does three dates. So does 20 dates. So does three years of dating and a six-month engagement, if that's your thing.

My point is, there isn't a universal right amount of time for every person. There isn't even necessarily a right amount of time for one person in every situation. Maybe with one guy, you couldn't keep your hands off each other on the first date, but then with the next, it took you months to feel comfortable. If you have your own rule for yourself, that's fine, but a) I think you should consider breaking it every once in a while and b) even if you don't, don't assume your rule is right for anyone else. Just like any other thing in life—from waking up in the morning to buying a house to having kids—we don't all have to do it at the same time. End of discussion.

Just kidding, it's never the end of discussion! So discuss: Do you follow a rule for when to sleep with someone? If so, what is it? And even if you don't have a rule, per se, is there a general amount of time that feels right to you?

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