This is hard because we have known each other for a very long time. But I think I'll go with Charles Stross' Laundry series. It is basically the story of Bob Howard, an IT geek for the British government who is part of the department that deals with eldritch abominations. He spends most of his time being the good bond girl while his girlfriend is James Bond. It takes him a while to realise this is the case. It's surprisingly enjoyable and occasionally quite unsettling!

Who would you top me into apping if you had infinite topping abilities?