AU Where my OC Rebecca is the angel of the Lord, and Cas is just a hunting buddy. BeccaxCas)

                                                                                                                                                                                                        Bobby, Dean and Cas stood in the barn, they cast the spell to summon whatever it was that took Dean out of hell. Lightning came out of nowhere, the barn doors flew open, and a figure walked through the door. The lights exploded as a young female in a trenchcoat and suit walked in, she stood a few feet away from the men, the lightning struck again and the shadows of wings appeared. Bobby tried to attack her from the back, she grabbed his wrist, smirked and touched his forehead.

Bobby fell unconscious to the ground. Dean stabbed the woman in the chest, she looked at the knife, rolled her eyes and pulled it out, then dropped it to the ground. Cas stared in awe, he raised his shotgun filled with saltrounds and shot her, she sighed, and looked at him, their eyes met. She cocked her head to the side, and squinted her eyes, she smiled slightly and touched his forehead, knocking him out.

"What are you!?" Dean demanded to know, She looked away from the black haired blue-eyed man on the ground, and looked at Dean. "My name is Rebecca, I'm an angel of the Lord." She told him, Dean scoffed, "I don't believe in angels." He replied, "You say that, and yet I'm right here." Said Rebecca. "I'm the one who gripped you tight and raised you from perdition.." She said, "Why did you save me? What's so special about me?" Dean asked, "You don't think you deserve to be saved?" Rebecca said with a head tilt and eye squint. 

Cas woke up, and looked at the woman, he stood up, and slashed her with holy water, she sighed and looked at her wet coat. "Really?" She asked, "She's not a demon, Cas." Dean said. "Cas Novak, full name Castiel, named after Cassiel the angel of Thursday who fell in love with humanity. Religious parents, right?" She said. Cas nodded slowly, Rebecca smirked, and looked back to Dean. "Well, maybe i'll see you around." She said, and disappeared.

****A few months later****(After Hannah is dead, and Rebecca has gotten to know the boys)

"You call her!" "No way, man. She's a total bitch, there's no way I'm calling her!" The Winchester brothers argued back and fourth. "Cas, you do it!" Dean said, Cas, the Winchester hunting buddy. "Rebecca, Angel of the Lord...we uh, need some help." Cas prayed to her. Rebecca appeared beside Cas, "Hello Cas. Sam, Dean." She greeted, her long brown hair messy. 

"So, Boys, find something you can't kill?" She asked cockily. Dean rolled his eyes, "Actually, we just need help wiping out a big ass nest of vamps." Dean said, "Alright, let's go." She said. "Whoa, whoa, whoa. You're not zapping us there, we're taking the car." Dean ordered. Rebecca walked closer to Dean and squinted her eyes, "Don't ever order me around, Dean Winchester, You'll regret it after i smite your ass." She said, Dean was about to say something, then Cas and Sam pulled them away from each other.

Cas's hands lingered on Rebecca for longer then they had to. They all went to the car, and drove to the barn where the vampires were hiding out. "Alright, Rebecca, you're the quietest one, warp your angel ass in there and then come back and tell us if their in there." Dean said, "Are you sure that's a good idea?" Sam asked, "Of course it is!" Dean replied, "Dean, this is more risky then any of your other plans." Cas said, and looked at Rebecca, "I'm an angel, I'm sure i can handle myself." Rebecca said, and smiled at Cas, then disappeared. 

She warped inside the barn, the vampires were there, and awake, and very angry and hungry looking, "Crap." Becca swore, the vampires advanced, and began attacking. Rebecca took out her angel's blade and started killing the vampires. She had been punched, scratched, and stabbed a few times before the guys came barging in when they knew something was wrong.

Rebecca panted as she watched the last vampire fall after putting her hand over his face and using her power to kill it. She turned to look at the guys, and fell to her knees, Cas rushed to her side, the Winchesters following after, "Are you okay?" Cas asked, She took a few deep breaths, and stood up. She nearly fell, but steadied herself, she examined the blood on her hands, and sighed. "I'll see you around." was all she said before disappearing again.

*****S5 time*****

Rebecca appeared in the Impala causing Dean to swerve around the road and complain about how he hates it when she does that, Rebecca just smirked and looked out the window, "Hello Cas" She said and turned to face him. "Hello Becca" He said in return and smiled, "You're coming on this hunt with us?" He asked, "If that's okay with Princess Dean." She replied, Dean rolled his eyes and groaned a "fine..".

_After the hunt_ "I'm going to the bar, you comin' Sam, Cas?" Dean asked, "Yeah!" They both agreed, "Rebecca are you coming?" Cas asked, "sure?" She agreed. They drove to the bar and sat in a booth towards the back, they each ordered a beer, and Dean ordered one for Rebecca. When the drinks arrived, she took a sip of the beer, and then proceeded to chug the entire thing. The boys stared wide-eyed. After a few more beers she loosened her tie, and took off her trenchcoat. 

She started getting tipsy after the fifth shot of whiskey. She started giggling like an idiot, and after a few more shots, she started flirting with Cas. He got all flustered and Sam and Dean laughed. Music started playing, and Dean pushed Cas and Rebecca onto the dance floor, Cas showed her how to dance, and they made idiots out of themselves. 

Cas was almost as drunk as Rebecca, with Sam and Dean still in the bar, Cas and her slipped out of the bar, and went to the Impala. Cas and Rebecca sat in the back seat, they locked eyes, and inched forward, their lips met. By the time Sam and Dean finished drinking, they found Rebecca and Cas making out in the backseat of the Impala. 

Cas told Dean to shut up and drive, and Rebecca passed out on Cas's lap. He carried her into the motel, and laid her on his bed, and slept on a chair. When Rebecca woke up, she remembered everything, and she told Cas she wanted to be his 'girlfriend'. To which Cas agreed.

*****S6 time*****

Rebecca and Cas's relationship stayed a secret for the longest time, until Dean caught them making out, sober, in the motel. Cas explained everything, while Rebecca straightened her tie. Dean joked and asked Rebecca if she knew about the 'birds and the bees', she threatened to smite him. She warped her and Cas somewhere more private.

"Cas, my feeling for you are stronger then any other i've ever felt. I read a few books, and i believe i'm in love with you." She said, Cas smiled, "Well good, because i love you too." Rebecca smiled and pulled him down and their lips met. They fell onto the sands of a beach, somewhere. "Your the most perfect human i've ever met." Rebecca said, "And your the most perfect angel i've ever met. But, why can i see your wings?" He asked, Rebecca gasped, and positioned herself on her knees over Cas. 

"What?" She asked, "Why can i see your wings? Can Sam and Dean see them too?" He asked, "N-no. Only an angels soulmate should be able to see their wings." Rebecca stuttered. "So i'm your soulmate?" Cas asked, "Y-yes.." Replied Rebecca, " Well, your wings are magnificent. Jet black with Brown and Blue feathers sprinkled in." He said, completely dazed by them. He reached out and touched them, Rebecca shuttered. "I'm sorry!" Cas said, "No, it feels...good.." She said.

Cas stroked her wings again, and she rolled her head, and leaned back down to kiss Cas, she kissed him with such passion, they both ran out of breath. Things got more heated, and let's just say that more then just the trenchcoat and tie came off.

~The End

A/N: Got this idea from an edit! I hope you like it! Don't forget to comments, and as always, i will see you, IN THE NEXT CHAPTER! BUH-BYE! *I'm all fired up now*