That there is the photo CBS News used to illustrate Dallas's promiscuity, which made me think that it was all our our honky-tonkin' that makes us America's sixth-sluttiest city. But in the description alongside that photo, CBS notes our high concentration of Fortune 500 companies, which made me think that maybe the Texas Instruments guys are driving around picking up the AT&T gals and taking them out honky-tonkin', which was leading to all sorts of executive-level boning.
But no. It's much simpler. Apparently OKCupid, the JDate of sluts, ran the numbers to determine which cities have "the highest percentage of 'casual sex seekers.'" Dallas came in sixth, behind San Francisco, Miami, Seattle and Portland, the sluttiest city of all. Oh, and Pittsburgh beat us too, but that was apparently due to a data anomaly that statisticians call "Ben Roethlisberger."