AU: Dean is a demon who falls for an angel. M rated for slash etc. in later chapters.

The demon in me.

Chapter One.

The demon sneered and thought 'Fucking angels…if I ever get my hands on one I'll kill it' as he looked down at his dead brother.

"Feathery bastards" he yelled as he walked away.

He was sick of finding his brothers and sisters dead, sick of fighting this damn war. Deep in thought he turned the corner and almost ran into an angel. The angel slumped against the wall and looked up at him. The most amazing blue eyes stared at him and he found himself saying "Hang on, I've got you" as he bent to help the wounded angel.

The demon slid his arm around the angel and lifted him up, taking most of the creatures weight the demon helped it walk into a nearby building. He led the angel to a back room and helped it sit.

"Give me a look then" says Dean.

The angel merely looked at him, those blue eyes drilling into his black heart. The demon shifted uncomfortably and said "Fine I'll leave ya to die if you don't want my help"

The angel reaches out lightning quick and grabs the demons wrist "I know what you are demon".

"Yeah, yeah and you're an angel so what? Let me look or I can't help ya big baby" replied the demon.

Castiel nods and lets go of the demon…not exactly sure why he trusts the creature but he does.

Dean opens the angels trench coat, the shirt underneath is sliced open and so is the angel.

"Shit, that must hurt" commented the demon.

"Can you help me?" asked the angel.

"Sure I can but there's one condition" replied the demon.

"There always is with your kind" said the angel grimly.

Dean snorted but said "Just don't tell anyone a demon healed you ok".

"That's the condition?" asked Castiel.

"Yeah. Now shut up and let me do this" snapped the demon.

The angel was silent, he waited. The demon slowly lowered his hands to just above the wound, closed it's eyes and the angel felt a warm tingle go through the wound as it began to heal. A few moments later the pain vanished and the wound was gone. The angel stared at his side in awe "Thank you. I am Castiel" he said.

"It's cool. I'm Dean" replied the demon as he stood up, offering the angel his hand.

Castiel took it and got up. The demon still had his hand and their eyes met, locked, blue on green and something completely unexpected happened, they smiled at each other. Then both creature's sensed the arrival of other demons and angels. They let go of each others hands and the demon walked away.

"Don't get yourself killed" called the angel.

"You either" replied the demon over his shoulder.

Castiel stood there very confused, a demon had just saved him. It was unheard of…demons killed angels. He frowned and started to wonder what they were fighting for. He decided to ask his brother some questions. He vanished reappearing beside Gabriel a moment later.

"Hey little brother" grinned Gabe.

"Hello Gabriel" replied Castiel.

"What's up?" asked Gabe.

"Are all demons evil" he asked.

"Of course they are Cassie, evil filthy things and we have to get rid of them all" replied Gabriel.

"But Gabe, what if just one of them was worth saving? What would that mean?" asked Castiel.

"I have no idea brother. I don't think any of them are worth saving, if it's even possible" replied Gabriel.

Castiel frowned, thinking hard, then asked "Have you ever just spoken to one?".

"What? No, I kill them. Castiel what's gotten into you?" said Gabriel.

"Nothing I was just thinking' replied Castiel.

"You think strange things little brother" said Gabriel.

"Some times" said Castiel with a nod.

Gabe rolls his eyes and they continue to look for demons.

Soon after they came across a battle and joined their brothers to fight the demons. Castiel found himself actually looking at the faces of the demons before he killed them now. During the fight he found himself separated from his brothers once more. He was grabbed from behind and teleported out of the battle zone. The angel was let go, he spun around ready to defend himself to find the demon who had saved him earlier grinning at him.

"Hey" said the demon.

"Hello Dean" replied Castiel "Why have you bought me here?".

"Saved your feathery ass again" boasted Dean.

"Oh, you did, did you? From what?" asked the angel tilting his head.

Something fluttered inside the demon and he ignored it.

"My brother was about to ambush you" he replied.

"Oh…I see. Thank you again" said Castiel.

"So Cas, what do you say we sit this one out. Talk a little" asked Dean.

The angel frowned at the shortening of his name but said nothing about it "I should get back to my brothers" he replied instead.

"Oh ok, well be more careful next time huh. I keep pulling your ass out of the fire and some ones bound to notice" said Dean.

"Then stop doing it" stated the angel.

"What and let you get yourself killed?" asked the demon.

"Why do you care…you're a demon, I'm an angel" asked Castiel.

"I maybe a demon but I hate this war, sick to death of it. Sick of killing you lot just cause your angels. None of you have ever done me any harm, why should I want to kill any of you?" replied Dean as he sat down on the grass.

Even though he should be going back to the fight the angel sat down next to the demon saying "I hate this war too. Until today I had never spoken to a demon, are all of you like this?".

"No most demons hate angels with a passion. I'm an odd one out" replied the demon.

They sat there talking for an hour then Castiel stood up saying "I must go. I shall look for you in battle so that I do not slay you".

"Gee thanks" scoffed the demon "I'll keep an eye out for you too Cas" he added seriously.

The angel vanished leaving the demon to wonder just what the fuck he was doing. Why was he making friends with the enemy ? Ok the enemy was breathtaking but still, he was an angel for fuck sake. Shaking his head the demon teleported to his brothers side.

"Hey Sammy" he said.

"Where the fuck have you been bitch?" snapped Sam.

"Killin' angels jerk" lied Dean.

Sam snorted "How many?".

"Three" Dean lied.

"Good start" grinned Sam.

"Yeah not bad, fuckers are getting sneaky. Oh and Sam…you see one in a tan trench coat, that fuckers mine right" said Dean.

"Oh…why?" asked Sam.

"Bitch gave me the slip before and I want to finish it off myself now" replied Dean with his most predatory grin.

"Sure brother, I'll leave you that one but the rest are fair game" grinned Sam.

"Cool bro thanks, now lets go kill some angels" Dean grinned back.

The brothers set off looking for angels.

Both sides retreated, the battle a stale mate. All angels fell back to heaven but one. All the demons returned to hell but one. Both awol creatures found themselves wandering around earth. Thinking of each other, wondering what was happening. The demon was more than willing to admit to himself that part of it was due to how utterly stunning the angel was. He was a demon after and all, no shame in admitting he wanted to fuck the angel senseless. But deep down he knew it was more than that, he just didn't know what. Had it been the way the angel had first looked at him or the way it had trusted him…he wasn't sure. Could it have been the don't die comment as he left…maybe. The demon shook his head and kept walking. He wandered for hours, thinking and found himself in the middle of a forest in the rain. He sighed and kept walking…suddenly he felt it, angel.

The demon drew his weapon and readied himself for a fight.

Castiel walked through the rain in a forest, thinking about the demon when he felt the presence of one and reached for his blade. It got closer…he tensed, ready to kill if he had too. He felt it behind him and turned, freezing in shock.

"You" said the angel.

"Hello to you too" replied Dean.

"Hello Dean, I wasn't expecting to find you here" said Castiel politely.

"Likewise Angel" grinned Dean.

"Why are you on earth?" asked the angel.

"Taking a walk, thinking. You?" replied the demon.

"I was doing the same actually" stated Castiel.

Dean grinned and asked "Thinking about what?".

"You actually' replied the angel frankly.

That flutter again, the demon firmly ignored it.

"Me…why?" asked Dean.

"I was wondering how a demon could be nice" replied Castiel.

"Oh, is that all?" huffed Dean.

"What were you thinking about?" asked the angel.

Dean turned on his most come hither look and said "Fucking you".

The angel blushed and stepped back. Making the demon laugh.

"Relax I was messing with you. I was thinking about how I could get out of this whole war. Just hide or something, I dunno" covered the demon quickly not wanting to scare the angel off.

"Oh…I have no idea's for you. I am sorry" said the angel.

"So uh me wanting you is really that scary huh?" asked Dean.

"I…no one has ever said that to me, I was shocked not scared Dean" answered the angel.

"Yeah sure, what ever. Looked like fear to me Cas" goaded the demon.

"I do not fear you" stated Castiel stubbornly.

The demon grinned and moved towards the angel slowly until he was in touching distance. The angel stood still and did not flinch as the demon reached out and caressed his cheek. Dean smiled and leaned in to kiss the angel but was stopped. The angel frowned at him and said "You lied, you do want me that way".

"So demons lie…I didn't want you to just vanish" admitted Dean.

"Angels do not have sex Dean" stated the angel.

"Why not?" asked the demon.

"It is impure" replied Castiel.

"And killing other beings is a pure act?" sneered the demon as he pulled away.

The angel frowned and realised the demon had a point "No it is not, you are right" agreed Castiel.

The demon was stunned…speechless he just stood there as the angel smiled at him.

"Have I said something wrong?" asked Castiel.

The demon shook his head "I…uh just wasn't expecting you to agree with me is all" he admitted.

"Why not? You are right…killing is an impure act" replied the angel.

"So is that a yes?" asked Dean grinning again.

"A yes to what?" asked the angel.

Dean chuckled "Sex" he said.

Castiel blushed once again but was considering saying yes, this demon was beautiful but he hesitated very unsure of what was happening to him. He had never had doubts until now. This demon was dangerous and not in the usual way.

The demon sighed and said "So it's a no then?" not able to keep the disappointment out of his voice.

The angels head tilted to the side and he replied "I have not said no".

The demon moves closer again, quickly leans in and catches the angels lips, kissing him tenderly. After a moment the angel kissed back. They stood there in the rain, under the tree's kissing. Arms had wrapped around each other, bodies pressed together. Both of them wet through, cold and not caring at all.