No, crackwhore is pretty much it.
Polyamorous Recommendations has been updated with seventy-one stories in the following fandoms: Alias, Angel, Buffy, due South, Farscape, Firefly, Good Omens, Harry Potter, Highlander, Jeeves and Wooster, Justice League, Lord of the Rings, Sandman, Sentinel, Six Feet Under, Smallville, Sports Night, Star Trek: TNG, Starsky & Hutch, and X-Men.