Cat and Cave
Summary: By 2009, you'd think that if Drakken and Shego still hadn't taken over the world, at least they'd managed to start up a proper relationship. You'd be wrong.
Chapter two is up: http://www.fanfiction.net/s/9196572/2/Cat-and-Cave
Chapter one: http://www.fanfiction.net/s/9196572/1/Cat-and-Cave