Under Your Spell (Spike and Buffy. Spuffy)
Spike. A strong, evil, yet oddly sensitive vampire. For the last 2 centuries, all he's ever known is blood, violence and pain. His nature was to despise the Slayer, Buffy Summers, but things didn't quite work out that way. With a chip imbedded in his head, stopping him from fulfilling his desire to kill the innocent, he was in desperate need to fight something. When finding out Spike could kill demons, Buffy allowed him to fight besides her, as he was still strong and he loved a good fight.
After spending more time with the Slayer, something so wrong happened to him. He fell for Buffy. A vampire fell in love with the Slayer.