This chapter is rated M. Please note that there are descriptions of abuse, torture and rape of an underage angel in this chapter. (Just want to be sure to warn people…)

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The next morning, Castiel woke as he felt gentle fingers move through his feathers. He sighed, leaning into the warm, comforting body next to his own. His head was still resting on Dean's chest and so was his arm, while his left leg was entwined with Dean's and his wing draped over them like a blanket.

Castiel found himself purring as the hand kept petting his wings; becoming more insistent and seeking out the most sensitive places. It moved down to the base of his wing, and the angel tensed a little, since it was close to the oil glands. But Dean avoided the place and instead starting petting the sensitive area where wing bone met skin.

Castiel gasped, bucking involuntarily; burying his face in Dean's neck. Dean chuckled and moved his hand through the feathers again, feeling their softness before returning to that sensitive place.

His finger brushed the oil gland by accident and Castiel's eyes snapped open. "Dean!" he gasped; clawing at the human and jerked hard.

"Shit, I'm sorry, I couldn't see where I was touching, Cas," Dean apologized, afraid he'd somehow offended or hurt Castiel.

Castiel calmed down, panting hard. "No, it's okay, Dean. You can touch me there, now, I'm your mate. But... please wait a little longer before touching, they're very sensitive and… I'm not ready yet," he muttered against Dean's chest; blushing.

"Oh, okay" Dean said, blinking. The thought of him being allowed to touch that secret – and apparently very sensitive place – made a sudden, possessive feeling wake inside of him.

Cas relaxed against him, closing his eyes.

"Um, Cas?"

"Mhm?"

"How does that 'mating' thing work? I mean… how did it happen? Just from having sex?" Dean asked, curiously.

Castiel tensed against him. "Yes, and no… It only happens when an angel feels safe and content around the other person – when their Grace binds itself to their partner. The rest happens during sex, when the claim is made," he blushed hard.

"Ah, so you bound yourself to me?" Dean chuckled.

Castiel lifted his head to look at him. "Yes, I did."

Dean stared back at him for a moment before leaning in to claim the angel's lips again. Castiel kissed him back, humming, and Dean loved how he was much more responsive to him now. He growled low in his throat; possessive hand moving up to grasp the angel's hair.

Castiel shifted, trying to get closer, and his thigh touched something hard. His eyes opened and he looked down, noticing that it was Dean's erection he had felt. He glanced up at the human, who was looking back at him; biting his lip.

"Sorry, Cas," Dean muttered.

"It's okay, Dean," Castiel said, smiling. He glanced at the erection, hesitantly, before moving off of Dean; wings spreading behind him and slowly moved down Dean's body to his cock.

"Whoa, Cas, you don't have to do that," Dean said, realizing his intention.

"No, but I want to. See it as a gift and not obligation," Castiel said. Dean still looked skeptic, but as soon as the angel's pink tongue starting licking at him, he forgot all about protesting and threw his head back in a long groan. The angel started out hesitantly but grew more confident as uncontrolled sounds escaped Dean's mouth.

Castiel knew exactly what to do, and it kind of saddened Dean. But he pushed the thought away and focused on the angel's mouth enveloping his cock; sucking and licking and swirling his tongue around the head in a way that made Dean moan embarrassingly loud. Cas was holding his hips down with a strong hand, and his blue eyes kept staring up at Dean – like he didn't want to forget whom he was doing this for.

Castiel was surprised at how soon he was willing to do this for Dean. But their recent mating made his Grace cry out for Dean – to taste him, to get to know him and bond further with him. Plus, he wanted to see what it would feel like doing this to his mate. Dean tasted good in his mouth, unlike anything he had tasted before and he liked the weight of him against his tongue. For the first time, Castiel found himself enjoying doing this, and he moaned involuntarily.

Dean was writhing under his touch, and his pleasured expression pleased Castiel, who started sucking him faster as he felt his human coming closer to the edge.

"Cas! Fuck, I'm gonna…" Dean groaned, body tensing up as he came down the angel's throat. He hadn't been able to last long with the way the angel was pleasuring him, and Cas simply swallowed down his come when he came, pulling off and licking the rest off his lips.

Dean stared at him, wide-eyed, as Cas licked his lips curiously, tasting his come. He growled and pulled the angel up for a kiss with him straddling Dean's hips. He could taste himself in the angel's mouth, and it made his head spin. Dean's hand moved up to one of the wings, causing Castiel to moan into his mouth as he buried his hand in the feathers.

"Dean," Castiel moaned, drawing back from the kiss. He shuddered at the feeling of gentle hands caressing his feathers.

Dean's hand slowly moved down his chest, which was still covered by the t-shirt which he hadn't taken off the angel last night. He stopped over the angel's groin; staring up at him to ask for permission to move further. Castiel stared back into the green eyes, biting his lip nervously and nodded, giving him permission to move further down. Warm fingers wrapped around his erection and the angel bucked into them, moaning.

"Dean, Dean," Castiel gasped, closing his eyes in pleasure. He wasn't used to being touched there.

Dean smiled smugly under him, starting to pump his hand faster over the angel's cock; eyes not leaving his face. The sensations of Dean touching his wings and cock were too much for Cas, and he came with a shout of Dean's name.

Dean helped him through the orgasm, and the angel collapsed on his chest afterwards; wings spread out on either side of them. Dean cleaned them up and ran his hands through the angel's hair as they tried to catch their breaths again, and Cas practically purred against him.

There was a comfortable silence between them, both of them feeling sated and exhausted, and leaned into the other's warmth.

The silence was broken when Castiel spoke. "I was only ten years old when I was sold to Bradley Hammond," he said, quietly.

Dean was pulled out of his thoughts and glanced down at the angel, who was still resting on his chest. Castiel looked away, as if in shame, and Dean's hand tensed where it was resting on the angel's neck.

"Cas, you don't have to tell me about this now," Dean said, softly.

"But I want to talk about it," Castiel said, still not looking at him. "I haven't talked to anyone about it, except the people at the shelter who rescued me, and Gabriel. It's… I want you to know." He looked at Dean; his blue eyes sad and nervous, and Dean took pity on him.

"Okay," Dean said, and the angel nodded, moving himself off of Dean's chest to lie down next to him; both turning to their sides, facing each other, and Castiel pressed himself close to Dean's chest.

Dean wrapped his arms around him protectively; playing with some of the soft feathers to soothe him and waited for him to continue.

Castiel snuggled closer to Dean and took a deep breath before continuing. "After Anna was sold and our parents were killed, Gabriel and I were sent to an institution for Creatures. We spent years there, mostly separated, but sometimes we saw each other. It was a horrible place… I never liked it there. They kept me for six until I was put out for sale." He paused, taking a deep breath, and Dean continued soothing him, encouraging him to go on.

"Bradley Hammond bought me after one week. He brought me to his house and gave me my own room, though it wasn't a cozy one – it was dark, the bed was used and uncomfortable, and there were no windows, no furniture except the bed. Already after the first night, he started to rape me," Castiel's voice broke but he continued. "He only prepared me before entering me when I still too small to take him. Later he didn't do that anymore, because there was no reason for him to do it – it was about his own pleasure, never mine. And it hurt so bad I couldn't do anything but cry." He buried his face under Dean's chin; tears threatening to come.

"That fucking bastard, I'll kill him," Dean growled; tightening his grip around the angel protectively.

"Dean," Castiel said, looking up at him. Dean stared back. "Let me finish, and be quiet."

"Okay. I'm sorry, Cas," Dean said, sighing, and rubbed the angel's shoulder again. He wasn't sure if he could listen to this. He had never felt so much anger in him before, and it was hard trying to hold back his emotions. Knowing what Bradley had done to Castiel… it was indescribable.

Castiel continued. "While he was at work, I was ordered to clean his house. If I hadn't cleaned it properly – if there was even one unclean spot – he'd drag me to my room and beat me. Same if the food I made wasn't good enough for him. So I did my best to please him, just to avoid the violence and the torture, because with my Grace suppressed I could not heal unless he allowed me to. But sometimes he'd hit me even if I hadn't done anything wrong," his voice broke again, but he paused before carrying on.

"The scar on my left wing… he gave me that one day he came home from work; drunk and angry, and took his emotions out on me. He tortured me with an angel-knife; he tore my wings with it. When the medic – who always came by twice a month to assess my health – came, he couldn't do anything to make the wound heal properly, so it left this ugly scar that I have now." He raised his left wing slightly, as a gesture.

Dean rubbed circles with his thumb over Cas' shoulder and leaned down to press a soft kiss to the angel's forehead; closing his eyes at the horrible images flashing through his mind and he felt tears threatening to come.

Castiel leaned into him and continued. "Sometimes, Mr. Hammond would invite his friends or neighbours over to 'play' with me. The worst thing was that they were all laughing while they did it. They laughed while they raped and hurt me." Tears started streaming down Castiel's face and he sobbed.

"Cas... Fuck, I'm sorry, I'm so sorry," Dean said; feeling tears appear in his own eyes but he blinked them away, and hugged the angel close to him.

Castiel took a deep breath; willing the tears away. "I was in that hell for nine years. In the end, I could hardly remember the good in this world. The day I was rescued – when slavery had become banned and the slaves were freed – I did not know what to do with myself anymore. The memory of the people coming there to rescue me is still so surreal in my mind," he said, closing his eyes at the memory, and took another breath. "Gabriel took care of me after that. I don't know what I would have done without him."

"Your brother really cares for you," Dean smiled.

Castiel smiled as well, weakly. "Yes, he does." He hesitated and said, "Afterwards, I avoided humans at all costs. I became afraid of them, and swore I wouldn't let them hurt me again. I don't want to go through that hell ever again, Dean." He buried his face in Dean's neck and shuddered.

Dean kissed him on the forehead, tenderly. "I'm sorry about what happened, Cas. That bastard should rot in hell for what he did," he growled. "But you know I'd never do any of that to you – never. I love you, Cas, I wouldn't hurt you, not ever."

Castiel smiled against him. "I know. Thank you, Dean." He snuggled closer to him; feeling Dean hesitate slightly at the girly behavior, and purred when the human finally allowed it and snuggled back.

Dean moved his hands through the feathers to soothe the angel. The thought of Bradley – or anyone, for that matter – having abused those beautiful wings filled him with anger and disgust.

No one would ever lay their hands on these wings again, he swore, except for Dean.

Castiel purred again, closing his eyes. Though the moment was very girly, Dean didn't mind it. Castiel felt safe and content and that was what mattered.

Dean was glad the angel had told him his story. The story had been hard to listen to, but he was glad that Castiel trusted him with it – to open up to him like that. He knew it had been difficult for the angel to tell him about it.

The lay for a while; Cas finally calming down from the effects of telling his story. Suddenly, the door to the apartment was unlocked and opened.

Castiel's head snapped up from under Dean's chin; listening. The familiar sound of the footsteps and a curse muttered when the person walked into something made him relax again.

"It's Gabriel," he said.

"Oh," Dean replied, feeling relieved that it wasn't some burglar.

"Cassie, you home?" Gabriel yelled from the other room, and Dean suddenly feared he'd just burst into the bedroom. "Don't make me go in there and go blind, guys!" the elder angel called from behind the door and gave it a hard knock.

"We're coming, Gabriel," Castiel replied, annoyed.

"We should probably get dressed," Dean grinned at him. Castiel blushed and nodded.

They quickly dressed themselves; wearing the sweatpants and t-shirts from last night, before they exited the bedroom and walked into the living room.

Gabriel stood with his arms crossed over his chest, raising an eyebrow at them when they stepped out; both blushing and feeling awkward when the elder angel eyed them knowingly. Dean felt like a teenager that had been caught in bed with his first boyfriend and was now awaiting punishment from the parents.

Gabriel glanced between them; eyes lingering somewhere on Castiel's chest where the younger angel's Grace was hidden. His expression darkened.

"Seriously, when I tell you to groom my brother, I don't mean 'groom' as in a bride's groom, Dean! You have mated with him!" Gabriel exclaimed, accusingly, and glared at Dean.

Both blushed heavily at that.

"Well, it kind of just happened!" Dean protested.

"It was my fault," Castiel muttered, causing Gabriel to look at him in surprise.

"You initiated it?" Gabriel said, shocked. Castiel nodded and the elder angel blinked, stunned. "Wow. You really are something, Dean," he said, looking at the human. He glanced over at his brother again, who was looking very embarrassed and awkward.

Gabriel took in his brother's scent and his nose wrinkled. "Damn, I didn't know a human's mating mark could have such a heavy smell."

"Mating mark?" Dean asked, confused.

"Ya know," Gabriel said, shifting awkwardly and grimaced, "when you became mated with Castiel, your… seed marked him as yours. And that seed leaves behind a scent on the marked angel – kind of to scare away competitors. And yours is kinda… strong," he explained, grimacing again but smirked when Dean's eyes widened and his cheeks flushed.

"God, I did not need to know that!" Dean exclaimed, horrified. Castiel shifted awkwardly next to him; staring at the ground to hide his blush.

Gabriel laughed. "Well, it's natural, so suck it up." He glanced at his brother. "And you, Cassie, really need to mark him back with your oil soon, if you don't want him taken."

Castiel scowled at his brother, who made his way into the kitchen to grab a snack.

Dean stared at Castiel in question. "'Mark me with your oil'? Is that another kinky part of angel mating?" he chuckled.

Castiel stared at the ground, shifting awkwardly. "Yes… When we take a mate, we mark the mate with our wing oil. It usually happens during grooming. I know you humans don't mark each other, but to angels it's very common and very… intimate," Castiel said, thinking about the word. "Or so I've heard. I haven't taken a mate before, and it usually only happens once in an angel's life." He glanced at the floor, feeling too awkward to look at Dean right now.

"You angels are very strange," Dean said, making Cas wince a little. "But I kinda like it," he added, grinning. Castiel looked up at him in surprise. "I like the thought of belonging to you, and you to me."

Castiel smiled and Dean pulled him into a passionate kiss; hands grabbing the angel's hip and neck possessively, and the angel gasped against him.

In fact, it did scare Dean a little being bound to someone for the rest of his life, and being marked as someone else's, but this was Cas. He had never felt about anyone this way before, and having Cas in his life forever seemed like heaven to Dean.

Yes, he could definitely live with being tied to the angel forever.

Gabriel stepped out of the kitchen and stopped, staring at them in horror. "Guys, spare me! Jesus," he said, holding a hand in front of his eyes to block out the sight.

Dean pulled away from Cas' lips and glared at the elder angel. "If you don't like the sight then don't look."

"I won't!" Gabriel said, wincing, moving over to the door. "Somehow, I liked it better back when the two of you still hated each other – 'cause I was not at risk of going blind back then! But then again, I'm happy not to see my bro so miserable anymore," he said, giving Castiel a quick, warm smile.

Castiel looked away, cheeks reddening a little, and Dean chuckled and pulled him closer.

"I'll let you guys get back to… whatever it was you were doing," Gabriel said, grimacing a little, and disappeared out the door.

When Gabriel left the apartment Dean glanced down at Castiel who was staring at Dean's clothed chest; hands playing with the hem of the shirt quietly.

"So I was not the only one coming home and feeling miserable back then, huh?" Dean said, moving his hand up to pet through the angel's feathers.

"I was – as I've said before – upset about getting transferred and forced to work with humans. And I felt bad… for treating you so badly. Even though I hated you, I knew it wasn't your fault I had been transferred there," Castiel said.

"Don't worry about it, Cas, I forgive you," Dean smiled. Castiel nodded, leaning into Dean's hand. "I'm glad you got transferred, though, otherwise we'd never have met."

Castiel smiled. "True." He leaned into Dean's chest and the human wrapped his arms around him and let his hand stroke down the length of the left wing, making Cas shudder against him.

"Dean?"

"Mhm?"

"Promise me that you won't try to track down Bradley Hammond – because I know you've been thinking of it," Castiel said, pulling away from Dean to stare at him firmly. "I can't lose you if they arrest you for it. So please… promise me?"

Dean was surprised by the request, but he knew Cas was right. Bradley Hammond was not worth it losing Cas over if the cops arrested him after he was done with the bastard. Though he wanted so badly to give the man what he deserved and had not gotten, – he wanted to fucking beat him into the next dimension – he knew he couldn't risk his angel's happiness for it. They were going to throw him in jail for a long time if he did that, and it would break the angel completely.

Castiel deserved better.

So he smiled, pressing the angel closer to himself. "I promise, Cas," Dean said, kissing the angel's forehead. "I won't ever leave you. Not ever."

Castiel closed his eyes and relaxed. He knew Dean wouldn't leave him. They would always be together, and Castiel was happy he had finally found a person he knew he could trust with all his being. So he relaxed; leaning into Dean's touch and closed his eyes, feelings his mate's warmth and love around him.

To be continued…

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I have a kink for marking/claiming, so I decided to add that into the way angels take mates ;) I hoped you liked it! Writing about Castiel's past was really hard, and I didn't want it to be too emotional with Dean crying his eyes out etc., so I hoped it turned out okay the way it is now.

This chapter has been a real pain to write! Sorry if it might seem a little messed up, I hope I managed to make it okay, though.

The next chapter will be the last chapter. There will be something extra, but I'll explain it further in the next chapter. I feel kind of sad about the thought of ending this story :( I enjoy writing it, even if the plot is really difficult sometimes. Right now I just have to finish the last chapter and the extra scene! I hope it'll all be done soon :)

Thanks for your support so far and all your lovely reviews! And thank you for reading, please tell me what you think :)