At Elysian Fields there's a story "Blue Eyed Saviour" by Inzey (completed) where Spike claims Buffy before she goes to see the Master. The summary is:-
What happens when a blue Slayer meets a unique vampire? What happens when said vampire blows The Slayer off her feet. Throw her friends, watcher and a brooding stalker into the mix and you get this.
(I can't write evil Spike, so this is less evil, kinda neutral Spike)
Not sure if this is what you wanted but it's worth a read in either case.
Enjoy
Sarah | 
