Want to know who's doing what (and to whom) in London? Browse and click our collection of survey-sourced sex maps for the skinny on the city's sordid secrets. Then go and have a long, cold shower and think about what you've done.Promiscuity, thy name is Bexley. At, the south-eastern borough averagespartners than its nearest rival. More worrying still,also confess to having had sex out of ambition. Bexley obviously needs to work on its technique, though –earn less than the average London wage.It’s not just the pace that’s faster in the middle of town – sex with strangers is way more common in the central boroughs than in the suburbs. Nearlyof Hackney andof Lambeth, Wandsworth, Southwark, Tower Hamlets, Islington, Camden and Lewisham said they’d slept with someone they’d met the same day, compared toin the outskirts of the city.Oh, London, this is worrying. In all but two careful boroughs (Sutton and Bromley),of respondents said their sex is as safe as can be. Most blasé about the threat of their genitals turning green then turning black then falling off/sealing up are the folk of Kingston –said they took maximum precautions.They’re straight, but not exactly narrow.of straight-identifying respondents from Redbridge said they’d had a same-sex experience. Would Woodford? Yes Woodford most certainly would.Kingston dwellers told us they were among the city’s least satisfied lovers (about the state of their sex life). This could explain why they’re also the city’s second biggest masturbators, averaging– double the London average.It’s official: Croydon is the wanking capital of London. Respondents told us they stroked the salami (or the soya been) on average. Aalso makes it one of London’s worst hotspots for cheating. Wanker territory in more ways than one, then…The city’s most rampant porn consumers are in the south, with Bexley, Croydon, Merton, Kingston and Richmond getting through the most gigabytes of grot. In each,confess to regularly appreciating the adult arts.