Dean's POV

I groaned as I woke up, my back had been hurting the past couple days. I tried stretching my arms out but it did nothing to release the tension between my shoulder blades. Sam and I hadn't had a hunt recently so we have been hanging out at the bunker while Kevin was translating the piece of the angel tablet we had. I made myself get up putting on some pajama pants, ignoring the pain radiating in between my shoulder blades. When I was in the kitchen I was making myself some coffee with my back to the door, I heard a flutter of wings so I knew it was Cas but I finished making my coffee, "Hey Cas,"

Cas was silent so I turned around, he was just standing there staring at me, "Dean what happened to your back?"

I shook my head, "Nothing just been bugging the hell out of me, its been itchy as hell but I mean nothing. Why?"

Cas narrowed his eyes at me, "Dean turn around…"

I looked at him confused, "What why?"

Before I could say anything else Cas disappeared from in front of me and I felt him reappear behind me. After a few seconds, he mumbled, "This is impossible."

I quickly spun around and looked at him, "What the hell Cas?"

He looked up, I could see the utter confusion and concern on his face. "I… I will return later."

Again before I could say anything he was gone, I growled, "Damn it Cas!"

I sighed heavily, again trying to stretch out my back with annoyance. I grabbed my cup and then sat down at the table, it wasn't long before Sam clambered in. As he came in he stopped, and I could feel him staring at my back and I growled, "What!" I turned around quickly.

Sam looked at me, "You have like to red lines on your back between your shoulders dude. What happened?"

I frown, "What do you mean?"

"They are like perfectly straight, same length, same width, I don't know man go look in the mirror?" Sam said as he went to the fridge.

I narrowed my eyes at him the quickly got up and went to the nearest bathroom that had a full-length mirror and looked at my back after grabbing on of Sam's handheld mirrors. Sam was right, just between my shoulder blades, exactly where the pain and tension is were two reddened lines and they almost looked like scars, when I reached around I could only touch the tip of one but I noticed it was slightly raised and I was confused. "What the hell?"

I made my way back into the kitchen, Kevin was making himself a cup of coffee and Sam was telling him that he was going to make Kevin eat something. Kevin slipped out of the kitchen before Sam could realize it and I couldn't help but laugh a little bit. Sam looked around and then sighed, before looking at me, "So what happened to your back dude?"

I shook my head, "I have no idea… but its right where my back has been hurting the past couple days so maybe I did something and didn't know…"

Sam made a face, and I sighed and asked, "What?"

Sam sighed heavily, "They are the same dude… and they are spaced pretty much evenly part dude… that doesn't seem like a coincidence or chance.."

I groaned and scrubbed my hands over my face, "Just leave it okay…" After a few minutes, I finished my coffee, the pain in my back was getting to be unbearable so I looked at Sam, "Do we have Vicodin?"

Sam nods, "Yeah it's in the medicine cabinet in the corner."

I nod and grab two pills then look at Sam, "I am going back to bed. You need anything come get me."

He nods and then I leave. I take the two pills with a gulp of water, then laid down in my bed. I was half asleep when there was a tell-tale flutter of wings, I growled and turned from my stomach, sitting up at the same time. "What the hell do you want Cas."

Cas looked hesitant to say anything before he finally spoke, "I am sorry Dean"

I frowned at him, "What for Cas"

Cas bit his lip and came closer to me, "It should have been impossible… I do not understand how it happened."

I felt my frustration growing, "Damn it Cas what? Just say it."

Cas looked up at me and quickly blurted out, "Youaregrowingwings."

I heard clearly what he had said despite how fast he had said it, I scoffed, "Yeah haha so funny Cas. But that's not possible I am human…"

I watched as he looked at me with uncertainty, "Technically not completely… When I pulled you from perdition… your soul was battered and broken… when I pulled your soul back together there was such a small piece missing that I broke off a piece of my grace and filled it in… It was such a small piece it should have taken thousands of years to even grow into your soul and form wings…"

I was pissed, I stood up quickly, "What the hell do you mean?! I AM HUMAN I CANT GROW FUCKING WINGS!"

Cas visibly flinched, "I am sorry Dean…. I… this shouldn't have happened…"

I ran my hands through my hair and closed my eyes, "Fine why the hell did this happen if it should have taken so long…"

He looked at me, "I believe it is the proximity to the angel tablet…"

I laughed bitterly and shook my head, "So what then. Have to leave and it'll go back to normal." I knew the chances of it actually working like that were slim but I wanted to hope.

Cas rubbed the back of his neck, a habit he had picked up from me and shook his head, "It's already started… if you were to leave it would take much longer and hurt worse… the piece of the angel tablet has a power that boosts angel grace…"

I closed my eyes scrubbing my hands over my face again, "Fucking great. Just fucking great…"

Before anything else could be said Sam knocked on the door, "Dean you alright?"

I laughed bitterly again, "Just fucking peachy Sam."

He opened the door and looked between me and Cas, "Wanna tell me what's going on…?"

I looked at Cas, "Why don't you tell him how I am apparently turning into a fucking angel."

Sam's eyes got wide and his face snapped to Cas, "What?"

Cas sighed, ignoring Sam for a moment before looking at me, "You are not turning into an angel Dean... You are growing wings… from what I can sense right now you will still be essentially human just… with wings.."

Before I could say anything, Sam caught Cas' attention, "Uh hello what the hell are you talking about." After Cas explained what he had to me, Sam looked at Cas, "I didn't know that was even possible…"

This time Cas looked like he didn't want to answer, it pissed me off so I glared at Cas, "What? Just say it."

Cas sighed and looked at Sam, "It is only possible if an angel and human are compatible… Technically all the angels have one human soul they are compatible with… in the presence of that human an angel can grow stronger… and they have a profound bond, many angels who have found their human soul have fallen in love with their human… the bond I share with Dean is even more profound because I personally rebuilt his soul... I had no idea that Dean was the soul I was compatible with until I laid my hand on his soul…"

I felt my chest tighten a little, not ignoring the fact that Cas basically told me we were made for each other. I had always felt a pull towards Cas, I mean he is hot and powerful, I would be lying if his power didn't make him even more attractive. I never did anything because I never guessed Cas felt the same way, I was to stubborn to really let myself believe he could actually want me the same way, and now he was telling me were in all purposes made for each other. Sam looked at Cas, "Wait so you don't get told who your soul is until you meet them?"

Cas nods, "Some angels do not meet their humans at all because they are in their heavens."

Sam frowns, "That's kinda cruel…"

Cas shrugs, "Many angels accepted it early on that they would not find their soul. Only two of the archangels did. Lucifer and Gabriel…"

Out of curiosity, I asked, "Who was Lucifer's?

Cas looked hesitant to answer the question, but after a few seconds he sighed and answered, "Lilith"

Sam's eyes widened. I tensed suddenly biting back the sound of pain that wanted to force its way out of my throat. I apparently made some sound because Cas and Sam's attention both shifted to me. Suddenly I felt angry at Cas again, "Can you fix this?"

Cas shook his head a bit, "The process is to far along to be reversed… I am sorry Dean this should have been impossible…"

I grabbed whatever was on the table next to my bed and angrily chucked it at Cas. He of course dodged it, and the movement made the pain worse and I growled grabbing my bedsheet, fighting the urge to cry out. Cas came over and looked at me, "Dean… I understand you are angry but you should try to relax…"

I narrowed my eyes at him, "You try going through this shit Cas!"

Cas narrows his eyes at me "I did… all angels grow their wings. Only the archangels did not have to grow their wings… You should soak in a hot bath"

I sighed a little and ran my fingers through my hair, "Any other tips…"

Cas nodded, "I should stay with you. Since the piece of grace was originally mine my presence should help."

I groaned internally and closed my eyes, "Fucking fine. I am going to go take a hot bath."

I stood up and bit my lip, my back felt like it was being ripped apart and I was fighting the tears. Cas and Sam both moved to help me but I growled and pushed them off, making my way to the bathroom that had the large soaking tub that Sam usually liked to use. I turned the water on, before stepping out of my clothes, I took another pain pill and climbed into the tub. The heat of the water felt good against my sore back and I relaxed. I don't know how long it was before I realized the water was turning cold, so I climbed out. My back felt much better and I was ready to go to sleep, so I just pulled my boxers back on, and started to pull my shirt on but the fabric rubbed against whatever the hell was coming out of my back and made it itch more so I left it off. I carried my clothes back to my room and laid down on my stomach, I was able to fall asleep easily. When I woke up the pain in my back was even worse and I let out a small cry, I hadn't noticed anyone in my room until Cas spoke up, "Are you okay Dean?"

I narrowed my eyes at him, "I am a human that is fuckin growing wings? Do you think I am okay!? It feels like my back is being split in two damn it!"

Cas didn't react, he had been around long enough to know that when I was in pain I didn't react well. Cas didn't get any closer this time as he looked down at his hands, "I am sorry Dean…"

I sighed and closed my eyes, I knew he hadn't done this on purpose. I felt bad for getting pissed at him so I finally replied, "I know Cas… its fine okay we will figure it out…"

Cas looked up again, his eyes meeting mine, it caused the familiar tugging I had been ignoring all these years, because Cas was an angel, and he deserved better than a human who would eventually die. Which reminded me of something, "Hey Cas… Will I be able to like…fly and…will I be an angel… or will I just be a human freak with wings…"

Cas bit his lip, hesitantly he said, "You should be able to fly, and… I don't know what will happen. From what I can sense my grace has sort of grown together with your soul, I mean they should have remained separate because technically it is impossible for them to grow together but… since my grace is compatible with your soul maybe… I don't know Dean. I am sorry,"

I ran my hands through my hair, "How much longer is it going to take…"

Cas went around and looked at my back, his head tilted just a little and it was adorable. I had accepted my feelings for Cas in Purgatory, but I didn't want to pressure Cas because he had almost no idea of what a normal human relationship was and frankly I wasn't even the best person to show him. Cas spoke, "I believe another day. You should soak in hot water as much as possible, it will assist in removing the skin so your wings can be freed, I will need to help you when they are finally ready. I will know so it is best I stay with you at all times Dean."

I scoffed and shook my head, "Not while I am in the tub you aren't"

Cas narrowed his eyes at me confused, "Why not Dean?"

I sighed, "Because Cas I will be naked and that is just awkward."

Cas rolled his eyes, "Dean you should be proud of your form, its very firm. As an angel I do not have the same embaressment you do. Trust me it is best for me to stay with you at all times."

I groaned and for the umpteenth time ran my fingers through my hair before sighing with exasperation, "Fine!"

Cas nodded, "If your back is hurting again I would suggest another hot bath."

I sighed and nodded, getting up slowly again pushing off Cas when he tries to help me up, and I go to the bathroom, after making Cas turn around I take off my boxers and climb into the hot water. I close my eyes as the water relaxes the tense muscles in my back. I feel something else become loose and it felt odd, "What the hell…"

I start to sit up before remembering Cas is in the room and stop, Cas looks at me. "What is wrong Dean?"

I bite my lip and despite feeling embarrassed I tell him, "My back.. something feels like… I don't know its loose…"

Cas nods, "Lean up and let me see.." I close my eyes and lean up, I feel his hands running over my back and something feels looser as he does so, "Your skin is starting to peel. The hot water is assisting, it would be more painful if you were not in the water. Just lay back and relax."

I make a face of disgust but lean back and close my eyes, "Cas…"

I can hear him move around a little, "Yes Dean?"

I bite my lip and run a hand through my wet hair. "Do you just stick around because my soul gives you power…" I can hear the insecurity in my voice but I try my best to keep that out of my tone.

I open my eyes to see Cas looking at me with what I see as adoration but I try to keep that idea out of my head. "No Dean, at first it was. However, as time went on you became my friend and I wanted to do anything to help you."

I close my eyes again, "You said only Lucifer and Gabe found their souls. How did you know about Gabriel? I mean I am sure Lillith would have been a reason but… "

Cas pauses, "When Lucifer discovered Lillith was his soul, he was constantly using Adam to be around her… When she was killed he brought her back, and then she twisted him to her will and she eventually became his first demon. When he did that he no longer got power from her when she was a demon but he had loved her. When father had Michael lock Lucifer away, he had Lillith's death be the final lock because father believed he loved Lillith to much to allow anyone to kill her…" I look at Cas, his face was pinched as he remembered what he was saying. I just listened, not wanting to interrupt him because I knew he would eventually get to answering my question, "I had not know Gabriel had found his soul until we met Gabriel that last time before you and Sam saw him die. Sam was Gabriel's soul Dean, I could see it when he was in Sam's presence…The way his grace shone, and the way Sam's soul glowed. I knew. Just as Gabriel could see that you were my soul."

My eyes widened when he said Sam, "What? Sam was Gabriel's soul?"

Cas nodded, "Yes. He likely knew with your first meeting when you believed he was a trickster."

I narrowed my eyes a little and then closed my eyes relaxing in the water. "Did Sam know?"

"He would have felt a pulling towards Gabriel but unless Gabriel told him he would not have known," Cas said as he sat there.

I closed my eyes sleepily, I was so exhausted but I didn't feel like getting out of the tub right now. The hot water felt amazing against my sore back. Eventually, the water cooling made me get up, at this point, I was ignoring Cas, I slipped my boxers on and then went to my room and laid down, taking two more Vicodin and falling asleep again. After 6 hours according to my clock, I was woken up by Cas touching my back again, it felt like he was literally pulling my skin off, and I screamed in pain. Cas flinched and stopped, "Dean, I am sorry I was trying to keep you from waking."

I growled and narrows my eyes at him, "What the hell are you doing!? It feels like your fucking fileting my skin!"

Cas tried to calm me to keep me from waking anyone but soon I heard a knock on the door and shouted, "WHAT"

Sam opened the door holding his gun, obviously having thought something else was wrong. "Dude, what the hell?"

I looked at Cas, "He was fucking peeling my skin."

Cas winces, "Dean I told you, your skin is peeling I have to remove it slowly so your wings can get through."

I grab my pillow and throw it at him, "FUCK OFF!"

This time he just dodges it and then before I can realize he has done it, he touches my head and puts me to sleep. When I wake up again I am in a hot bath with Cas, him sitting behind me and using the hot water and softened skin to be able to peel it. It felt relaxing at first until I realized Cas was also naked and I started to pull away. Cas, of course, grabbed my shoulder, "Dean please, I am trying to make this process as painless as possible. You need to relax."

I was tense as he did what he needed, I gasped as I felt some of the pressure and tightness in my back get relieved. "What the hell.."

"Your wings are coming out. Just relax this next part may be painful." Cas said soothingly.

I gripped the side of the tub as pain exploded from my back for a moment before all the pressure and tightness was relieved. I panted hard, and could feel myself shaking I went to turn but I felt Cas grab the extra appendages, "Careful Dean, you are new to the wings so you need to be careful. I need to clean your feathers of the blood and tissue."

I gagged a little but nodded, "Okay fine." At first, it just felt weird but then I started to feel pleasure, and it took everything I had to stop myself from moaning, but then Cas touched something at the base of the wings and I couldn't stop myself this time.

"Sorry Dean, I am trying to do this quickly but I need to be thorough since these are brand new." He said in a very soothing voice.

I closed my eyes and tried to think of anything else and ignore the pleasure but it got to be too much and I felt the familiar warmth pooling in my belly, I was on the edge and it was all from Cas' touching my fucking wings. Before I could say anything to stop Cas, I moaned loudly and was thrown over the edge. I came so hard I saw stars. When I was finished I was a panting shaking mess, and Cas was lightly running his hand over my back. "Do you need me to stop Dean?" He asked softly.

I closed my eyes, I was embarrassed but at the same time that was the best orgasm, I had ever had. I took a deep breath and tried to pretend as if I hadn't just cum in like 3 minutes like a fucking teenager. "H..how much more?"

"I have finished the right wing, it is clean, your left wing still needs the oil spread and I need to correct some of your feathers." I groaned I had a feeling he would say that.

I took a long deep breath before saying, "Go ahead and finish"

This time he explained what he was doing, his voice giving me something to focus on. "This here at the base of your wing is called your oil glands, I have to rub it in order to get oil on my hands and then spread it onto your wings. The oil protects the feathers and waterproofs them. I have to fix a couple of them because they are twisted."

As he talked I felt myself relaxing more and more, I was really tired. When I was half asleep Cas softly touched my hand gently making my eyes open again, he was already out of the tube again and dressed. He smiled a little at me, "Let me help you, your wings are going to set off your balance."

I nodded a little, and with Cas' help stood up. The wings felt heavy and I started to fall back but Cas caught me, then snapped his fingers and made it so my boxers and pants were on again. I stretched the wings out a little and it felt odd to have them and be able to move them but somehow they also felt right. I stretched them again and Cas is blushing a little. "T..thank you for helping me Cas... I am sorry for snapping at you. I know it was not your fault."

Cas smiled softly and nodded, "You're welcome Dean. I will do anything for you, I have told you that before."

I blush deeply, "Cas… I want to talk to you about something…"

He nods and then when I looked around remembering we were in the bathroom. Before I could suggest leaving Cas carefully took my arm, "Let me help you go to your room."

I nodded and with his help, we were heading back to my room. As we went Sam was leaving his room and he stopped in the middle of the hall his eyes going straight to my back, "Dude wow…"

I looked at him, "Shut up."

He shook his head, "I just… I mean they are really like… wow…"

I narrowed my eyes at him before looking at Cas, I felt a little more balanced so I took a few steps. Once we were finally back in my room, I had to pull my wings against my back in order to get through my door. I sat down on my bed, and looked at Cas, "Cas… I uh… I have um feelings for you…"

Cas tilts his head a little, obviously confused. "What do you mean Dean?"

I close my eyes, "Damn it I feel like a fucking girl." I take another deep breath and look at Cas, deciding to show him rather than say anything and I got up and kissed him, I used my wings to bring him in closer to me and kissed him slowly. At first, he didn't move but then when my wings pulled him closer he started kissing me. I smiled a little bit and kept kissing him, wrapping my wings around him.

Finally, Cas pulled away, he was panting a little bit, "I.. I could tell.. your wings first g..gave away your emotions earlier… I just… wanted you to tell me… because I know you don't know how to control them so I… I did not wish to assume." I blushed deeply, and looked at my wings finally, they looked like they were metal but when I touched them they were soft. Cas smiled at me, "They are beautiful Dean. I have never seen wings like it. I mean they look as if they are solid silver,"

I nod a little, "Thank you Cas. I think anyways."

He smiles and nods, "You're welcome. Really they are beautiful Dean."

I smile and then look at him, "Cas.. could I see your wings?"

Cas blushed deeply and then nodded, "Of course Dean."

Suddenly Cas closed his eyes and his wings became real, they weren't just shadows this time, they were actual wings. I smiled and was about to reach out and touch them but stopped myself, unsure if it was rude. "Can I…"

Cas smiles at me and nods, "Yes"

I gently reached out and touched his wings, they were solid black, no other colors, they weren't shiny black but a solid black. Cas moaned a little when I tugged on one of his feathers that were crooked. "Sorry…"

He shook his head a little, "M..my wings haven't been groomed in a long time... H..having someone else touching them is…"

I nod softly, "C…can I g…groom them?"

Cas looks at me hesitantly before nodding, "I…if you want to. But…. If you do not wish to it is okay Dean."

I shake my head, "I do… Can you sit on my bed… and I will sit behind you."

Cas nodded, then sits down on the edge of the bed and I sit behind him, his wings spread to both sides of the wall. I sat behind him, there were a few feathers that were misplaced. I was unsure and started fixing them, as I got closer to the base of his wings his body got tense and I could hear his breathing got more labored. I touched something that excreted some type of oil and made Cas moan suddenly. I blushed as the sound went straight to my dick but I ignored it and spread the oil onto Cas' wings, it made them shinier. By the time I was finished Cas was a moaning, writhing mess, I took a chance and got up, kissing him slowly. Cas was panting gently and closed his eye, "D…Dean…"

I softly looked at him, "Yeah Cas."

He looked down at his hands blushing. "I…. it has never been s…so pleasurable before…"

I couldn't help but smile a little with pride. "Well, you have never had someone like me do it."

He rolled his eyes and then blushed, "I love you, Dean… I have loved you for a long time… You have taught me so much about humanity…"

I blushed deeply and looked down at my hands, biting my lip a little. I was surprised how normal the wings were feeling. It was like they had been there forever, I yawned softly, exhaustion was hitting me hard again. I knew that Cas was still sexually frustrated but I didn't have the energy to help him anymore. Cas smiled a little, "You should lay down Dean. You need rest."

I nodded, pulling my wings close to my body and then laying down. I looked at Cas who was standing there, he had made his wings disappear again. "Will you lay down with me Cas…"

Cas blushed before nodding, he laid down next to me. I knew he wouldn't sleep but having him next to me made me relax. It was hard for my wings to adjust comfortably for me to sleep, after a few minutes Cas reaches over and took hold of the wings adjusting them carefully. I closed my eyes and finally was able to fall asleep, with Cas holding me and my wings slightly curled around me.

((Okay, not sure what inspired this but yeah. Hope you all enjoy and find it interesting. For anyone who reads my story Possession I am sorry its been so long since I update been struggling with inspiration for it. If you like this please favorite it. I think this will be the only chapter but who knows. If you have any questions or comments please leave a review!))