ok, hi this is my first-ever fanfiction, so go easy on me, alright? alright. like the description thingy says above, there is Dean/Buffy and Sam/Dawn pairing, but my OC is the main character.

DISCLAIMER: I don't own Supernatural or Buffy the Vampire Slayer :( there aren't any moneys being earned, so don't freak out on me.

A carnal sound ripped through her bared teeth as she gained consciousness. Dust spun at her feet as she jumped into a crouch, savage eyes taking in her surroundings. She stood in where she guessed a forest used to be. All the trees were knocked down in an ominous circle around where she had been lying. Her arm burned, and she clawed at her tattered clothes until an angry, scalding red hand print that marred her tan skin was revealed. Her brows furrowed as she studied the mark.

A strange sensation coursed through her, like a ozone before lightning strikes. Her head snapped up and she sniffed the air, her crouch deepening.

"Annabeth Grace Winchester." She whirled around at the sound, fists raised for a fight, a snarl curling her lips.

A man stood before her. He was about her age, maybe older, with slightly curly brown hair and faint stubble on his face. Electric blue eyes studied her like she was some kind of experiment. He wore a navy suit with a khaki trench coat and a loose tie.

Her green gaze narrowed into tight slits and the growl deepened. She wasn't going down without a fight.

In a flash the man was gone, and Grace's alarm deepened. Turning slowly, she attempted to spot him, only to find him right in front of her. Before she could do anything, a glowing hand pressed itself to her forehead.

Her eyes widened as a wall formed in her mind, blocking out her savage side. She remembered. She remembered everything. A wayward tear slid down her cheek and she wiped it away furiously. Her posture changed instantly, from wild crouch to a wary upright stance. "Who wants to know, the tax accountant from Christmas Past?" Grace asked, her voice rough with disuse. Better to hide the fear, that's how she'd been taught.

The man smiled sadly. "They were right about you, you are much like Dean."

Dean. Dean. Dean. The name echoed in her head like tolling bells. That was all it took for her to be at his throat.

"How do you know Dean?" She demanded, green eyes flashing. The man easily threw her off with a single flick of his wrist, yet his feet remained rooted to the spot. He was strong - inhumanly strong. "Cristo." She muttered.

"I am not a demon." He stated plainly. "I am an angel of the Lord." Grace couldn't help letting out a snort - was this guy serious?

"Right, and I'm the Easter Bunny. Now tell me who you really are and how you know my brother." A growl slipped out before she could stop herself. Obviously, a wall in her mind wasn't enough to keep carnal side at bay.

The man seemed very put out at the fact that she didn't believe him. "I'm Castiel. I was the one that gripped you tight and raised you from perdition."

"Thanks for that." she growled, still in her defensive stance. "But there is no such thing as angels."

"This is your problem, Annabeth Grace. You have no faith." Her eyes widened as a pair of shadowy wings spread from his back, stretching off into the distance. She stumbled a few paces, eyes full of shock.. He cocked his head at her in a way which was so dog-like she almost laughed. Almost. She hadn't laughed in what felt like centuries. She didn't even know if she knew how.

"Is this what all angel's look like, holy tax accountants?" she asked, still unsure about this man that claimed to be a 'messenger of god'.

"This?" he said, pulling at the trench coat absentmindedly, "This is a vessel."

She instantly tensed, muscle memory kicking in as she crouched once more. "You're possessing some bastard?" She accused, eyes narrowed in suspicion.

"He's a devout man, he prayed for this." That was a stretch. There was no way in hell that this 'man' before her was an angel.

"Well, I'm not buying what you're selling, so who are you really?"

He frowned. "I told you."

"Right. And why would an 'angel' rescue me from…" she winced, looking away. She couldn't continue.

A small smile graced his handsome face, and Grace had to admit she liked it when he smiled. "Good things do happen, Annabeth Grace." He said, his voice softer this time.

She looked him dead in eye, wild blonde hair falling in her face. "Not in my experience."

He looked almost saddened by her words. "What's the matter? You don't think you deserve to be saved?"

She looked away, unable to meet his piercing gaze. "Why'd you do it?"

"Because God commanded it. Because we have work for you."

short chapter, i know, but like i said before this is my first time, so i'm a little nervous...

make nice reviews and there will be more soon :D