We have to say, when we read this headline on ABC's Web site today, our gut reaction was, "Only 1 in 10?" But we guess that's down to what our parents call our "East coast urban bias." This survey, on the other hand, is a national stat and includes all the supposedly married monogamous men out there who mow their lawns on the weekend. But if you're talking about the average urban dating pool, then our completely unscientific guess is that a lot more than 1 in 10 men (not to mention more than 1 in 10 women) have multiple sex partners at any given time.

We'd venture that it's a lot closer to 1 in 2. Not that there's anything wrong with this, of course--assuming that all those sex partners are in the loop. But we're not naive enough to think that this is the way things always go down. But are we out of the loop?! Are people, even casual daters, more serially monogamous than we give them credit for? Take you, for example: do you like to sleep with one person at a time, or do your partners sometimes overlap

And what about the men (or women) you sleep with you: Do you ask them about other partners? Do you assume they're not monogamous until proven otherwise? Or do you get all romantic and mushy (as Em would put it) or naïve and stupid (as Lo would put it) and assume exclusivity once you feel like you're in relationship territory?