Mad World??

[http://users.livejournal.com/_celestria/]

I been looking for a fic where Buffy is a ex hooker and she lives with Spike and he wants her to do a undercover job...for him....and she has to get info from a cop named Riley so she dates him but finds out she's pregnant with Spike baby and he wants her to get ride of it... I think its called Mad something I read it a long while back?