If you always wanted to be a citizen scientist, here’s your chance: Kinsey Reporter is an app administered by Indiana University at Bloomington that tracks sexual and other intimate behaviours. You download it to your smart phone and then report your activities anonymously to the central data collection site. The project analyses the information and provides different options for data visualisation. You can then explore the data collected by the app yourself and discover new information on subjects as innocuous as public displays of affection and as harmful as unwanted sexual experiences. By zooming into the map, you can see just how much sex is happening in your city.