It's always the quiet ones! Toshiko Sato began a raunchy relationship with her long term colleague Adam Smith back in Series 2 but things escalated rather quickly when it was revealed that he was actually a memory-shifting entity who had used his powers to infiltrate the Torchwood team just a few days prior. There was still time for a good old fashioned romp, though (this is Torchwood after all!), and Tosh used this raunchy encounter to prove that she doesn't just excel in the scientific department, if you're catching our drift. Adam certainly was! And a good night was had by all. Well, until Adam started messing with everybody's heads for no apparent reason.