Title: Fiend
Author: Sybil
Credits: Buffy the Vampire Slayer and these characters are property of Joss Whedon and Mutant Enemy. The story is mine.
Notes: I warn you that this story is disturbing. It begins some time after Faith comes to Sunnydale, but Angel is not alive yet.

She rubbed her eyes blearily. Sure, she stayed out late fighting most nights, but she had never been awake for 48 hours straight. Pushing her sleepiness away, Buffy continued searching the alleyway. She gingerly pushed away trash, keeping her slayer senses alert to anything out of the ordinary.
Perhaps it was a combination of weariness and fear, but her attention wandered and a slight hysteria started to build up. Willow had been missing two days, no sign of her, or anything else for that matter. Two days of non-stop searching and thinking of ways to find her. Oz was more silent than usual, throwing himself into finding a way to get Willow back, Giles was frustrated and quite British the more he realized that their efforts were becoming useless. Xander was the most visibly upset, and he had turned to Cordelia for comfort, shutting the others out. The only person that Buffy could really count on was Faith and her fearless, sassy attitude to keep her going.
A salty tear trickled down her lips, she wasn't even aware she was crying. Brushing back her hair, a wet tear was smeared across her cheek and onto her neck.
Two cold hands clamped themselves onto her bare arms from behind, stroking them roughly and binding them to her side. Before Buffy could struggle or turn around, a tongue ran up her neck to her cheek, savoring the taste of her skin. A crude, sensual movement that made her skin burn. "Looking for something?" inquired a silky, sexy voice, so unlike the way it had been before.
Her hands were ripped from Buffy by an unknown assailant, leaving shallow scratches across her arms. She spun around, in time to see her attacker lying on the ground among the garbage and Faith standing offensively over her. Unsure of what to do, Faith looked at Buffy out of the corner of a dark-rimmed eye, dark hair falling artfully down her shoulders.
Willow snarled as she hit the garbage, caught unaware by the other slayer. For a brief second, Buffy just stared at her, unable to breathe or absorb this information. There was no need for an explanation of Willow's deathly pale skin, rich, blood red lips and androgynously sexy leather outfit, accentuating every curve. Willow slowly looked up to glare at Faith, words dripping off her tongue. "Don't you think that was a bit rude?"
Without waiting for an answer, she leapt to her feet with vampiric speed, throwing the shocked and frozen Buffy into Faith and took off out of the alley. Still new to the world, two slayers would be a bitch at the moment.
Faith's back hit the brick wall, and with Buffy's weight on top of her, she hit the ground with an arm thrown across her breast and a cloud of blonde hair in her face. They slowly got up, Faith pulling Buffy. "Come on!" She told her urgently, trying to snap Buffy out of her daze. But the petite slayer's vision was clouding with grief and confusion.