Title: Instinct

Author: HigherMagic

Pairings: Dean/Castiel, Sam/Gabriel

Rating: NC-17

Word Count: WIP

Spoilers: None

Summary: Werewolf/Were-cat AU. Dean and Sam are captured by an enemy were-cat colony where the Alpha and Beta start giving them unwanted attentions.

Notes/Warnings: Angst, Drama, Pr0ns?

Unbeta'd. All mistakes are my own (:

Okay. Eesh. This took FOREVER to get written. Combining my recent (and relentless) bout of illness will the…just…God, I HATE this chapter. It's just…Ugh. *headdesk* I have plans. I just had to get this…out of the way? I'm sorry. *hugs the fic and then slinks away*


I woke up warm, and the sensation was kind of foreign, given that the cabin had been cold and with Gabriel's instructions not to touch each other, we hadn't curled up much for body heat. I sighed, feeling the warmth of an arm around me, and jerked upright, startled almost by it. I ended up leaning away from a sleepily stirring Castiel, who groaned low in his throat and blinked open eyes dulled by sleep.

I flushed a little when his eyes met mine, immediately brightening as he focused on me and began waking up. He was a quick waker – I liked that. He chuckled, exhaling through his smile as he turned onto his back, stretching his arms over his head. "Good morning, Dean. Sleep well?"

"Very," I answered honestly, watching the stretch, bunch and pull of his muscles as he stretched, arms high over his head and back arching up, cracking once or twice, and I just had to touch. His chest, first, feeling the expand-contract movement of his breathing as my hand splayed out against his paler skin, untouched by the sun because of the clothes he wore. I only now noticed he had a very mild tan-line across his chest and over one shoulder, and then down on the lower part of his legs and both his arms. I moved so I was hovering over him, leaning down and tracing the difference of his skin color around his neck with my tongue and lips, inhaling his scent because I hadn't had much of a chance to last night.

He purred, his hands threading through my hair and petting, head resting back against the furs as he bared his throat for me for the first time, and I pushed closer into his space, biting down gently enough to leave no mark on his neck – if I bit him now, our mating would be very much complete, and I still had things I needed to take care of before that happened.

"What time is it?" I murmured against his ear, like he would know, and he sighed when I stopped touching him, pulling away to watch his face.

He thought for a moment, eyes flickering over my shoulder to stare at the tent opening, and then back to me. "It's still dark outside. Very, very dark," he said, making it sound like the dirtiest, hottest thing on the planet, and I flushed again when one of his hands ran down my back to cup my ass, using that to pull me closer to him. "And I'm no longer tired," he whispered, his lips brushing against mine as he stared at me with hooded eyes. "Come on, Alpha, I still have a promise to keep to you."

I hesitated, almost scared to ask – "What promise?" His gaze was heavy, a physical weight against my chest, making it difficult to breath. My senses were assaulted – pheromones, body heat, a locked gaze that, honest to God, I couldn't break away from if I tried, all combined into one heady, potent mix that had my breathing coming hard and fast, my body reacting to him and how close he was, and I shuddered when his fingers moved, massaging the flesh of my ass, his fingers just dipping in between the cheeks and brushing against my opening.

Castiel chuckled, his smile making his lips slide against mine again. I panted against him, licking at the corner of his mouth as he spoke; "To fuck you into the next week. I have a lot of plans for you, Alpha, and they're not going to act out themselves."

I shivered again, rolling my hips against his hard cock and earning a low growl-purr from him, but then I remembered that I currently had three days (at least) of stink on me, and had only been eating raw meat and Gabriel's medicine, and had recently been vomiting up said potion, and then had come all over myself. I was gross.

"Bathing, then sex," I demanded – or tried to; it came out more like a gasp against his jaw as Castiel took his damn sweet liberty snaking his free hand around me, fisting my cock with a torturous, perfectly-tight grip. I hissed when his thumb slid over the slit. "Fuck, Castiel, seriously – bath first."

The Alpha cat sighed the sigh of the long-suffering, and I chuckled as I placed a chaste kiss on his lips. "Come on, honey," I said teasingly, "I'll put out for you if you get me clean."

"What's the point when I just intend to defile you all over again?" Castiel griped in reply, and God – he was such a man, complaining about not getting sex. Granted, the hard-on he had left me with was uncomfortable at best, but I could deal with it and so could he. "Aren't dogs meant to hate baths?"

"Aren't cats?" I quipped, heading out of the tent opening quietly and looking around to see if any other wolves were up. The only movement was the light breeze in the trees and the occasional snuffle-snore of one of my pack members (or Castiel's) shifting in their sleep. I grinned, feeling kind of like I was a teenager again; sneaking out of mine and my brother's tent to go screw around in the lake and forest, and then Castiel followed me out of the tent and my attention returned to the here and now.

He snapped into a cat after I changed into a wolf, and then we were running. He wasn't…at home in the trees. That's as delicately as I can put it without blatantly making fun of him, but he was like a fish out of water. He wasn't used to ducking and dodging trees that sometimes sprung up out of nowhere, and wasn't used to things like obstacles such as fallen trunks or roots or boulders. The only thing he had to account for where the huge potholes on the marshes, and I had to stifle laughter as he took the bark off more than one tree as we ran, getting mud and leaves in his sleek pelt.

"Looks like we'll both need the bath," I called to him as he narrowly avoided head-butting a giant old oak. He hissed at me, tail flicking in dispassionate annoyance, and I snickered, kind of enjoying that fact that there was something he could learn from me, no matter how trivial it may be. He was a lot older than me, after all – I felt it sometimes when he spoke, deep in my bones – but the fact that our kinds could benefit from each other lightened my heart, and we ran the rest of the way in silence.

I'll admit, I kind of pushed myself too hard on the way to the lake – I had massive cabin fever, and running out in the trees felt so freaking good, that I shoved my body to the very edge of what I could do, running too fast and jumping over things I should have just skirted around. My legs were shaking by the time I stopped and my fur stuck to my flanks and neck from sweat, my coat near-black from it, but it felt fantastic having work-hot muscles and a heavily-beating heart, my breath misting in the air as I waited for Castiel to join me.

He came lumbering out of the trees a few moments later, and stopped, staring ahead. I knew what he was seeing – it was what I saw here when I came here for the first time. The place is beautiful, even more so during the summer when all the plants are flowering. Huge oaks branch out, almost covering a massive lake that touches from one root to another, all along the circular border as though the lake is one massive puddle that the trees are growing out of. When I was younger I used to think that the Earth was actually always like this – made of water – and everything we stood on just grew out of it. The trees are long-limbed and stretch towards each other to create a small gap up top which lets in just a little bit of light during the day, but it's shady and green-tinged and warm all the time here. The trees trap the heat in and keep the wind out, and it's my favorite place in the whole forest.

Castiel approached me, a human once again, and I changed back too so I could talk to him. There was awe in his eyes, because I knew they didn't have anything like this on the marshes – again, I was happy to have brought that look to his face, and joined him in watching the still scene, breathing easy for the first time in a while.

"You are full of surprises, Alpha," he said, voice low and rough as though he was afraid of breaking the silence. I knew what it felt like – you're just so reverent that you can't imagine disturbing the scene in front of you. It's that freaking beautiful.

I smiled at him, nuzzling close for a moment before taking his hand and tugging him towards the lake. "Come on, Cas," I said to him, smiling more widely when he willingly followed. My toes dipped in the water that was warmed by the still, trapped air, and I sighed, closing my eyes and leading the way in by feel. The roots grew deep into the first few feet of the borders of the pool and if you're not careful you can catch your feet on them and cut them. I made Castiel follow my every step carefully, glad for the semi-clarity of the water so I could see where I was going.

I let his hand slip from mine as I dove forward, going deep under the water until I could touch the very bottom of the lake, which was maybe three, four, meters deep. The warmish water wrapped around my body and felt amazing. I felt a million times better already.

When I surfaced in the middle of the pool, wiping what little hair that had fallen into my eyes away, I looked back to find Castiel still standing on the edge of the pool, looking a little uncertain. In a few strokes I was back to him. "What's the matter?" I asked, standing once I felt my feet hit the bottom, rising a little out of the water so it came up to my waist.

Castiel folded his arms over his chest, looking a little uncomfortable, and he wouldn't meet my eyes. "I can't," he muttered, almost too low for me to hear.

"Can't what?" I asked, confused.

His eyes flashed to mine, irritated and defensive. "I can't swim, Dean."

Oh. At once I felt foolish – of course he couldn't swim. There weren't large lakes and streams on the marshes – the water was built into the food. Cats groomed themselves too, licking themselves clean – they had no need for large bodies of water. He would never have had to learn to swim. I blushed a little in shame, biting my bottom lip for a moment before looking around, and then held out my hand. Water dripped from my fingertips, disturbing the surface.

"Let me teach you," I asked, requested softly, hoping he would trust me enough to do this with me. I wanted to be able to share this with him – all of this – and it was just another thing I could teach him. "You'll love the water, Cas, trust me."

He looked at me for a long, long moment, unblinking, his gaze appraising like the first day we met, before he stepped forward cautiously, wading towards me and fitting his hand in mine. He was glaring at the water like it was a monster that could rise up and attack him, and I smiled at his attitude. "Come on, Cas, deeper," I coaxed gently, remembering when I had taught Sammy how to swim – hopefully Castiel doesn't flail as much.

"The body floats naturally," I told him, stepping back a couple feet as he followed me deeper and deeper into the water, so it was just rising above our stomachs now. "Everyone is born knowing how to do it, but then we get afraid of it and we forget." When the water was up to my collarbone I pulled him close to me, sliding my hands down his flanks. "Kick your legs and use your arms, Cas. Tread water."

He looked at me like I had gone mad, but bit his lip and tried to obey. I could see his arms moving frantically under the water, trying to keep himself afloat whenever he managed to get his feet off the bottom of the lake. I smiled, catching his hips whenever he was in danger of sinking below the surface. "Slower, Cas, you don't need that much to keep up, and remember – you'll float."

It took a while, but eventually I had him swimming around on his own. He favored – and this cracked me up to no end – the doggie paddle as opposed to any stronger strokes. I didn't mind, because he still managed to hold his own when swimming with me, occasionally splashing me playfully as we swam, and we were both laughing as we returned to the edge of the lake, having spent close to two hours playing and swimming, and crawled out, clean and exhausted.

I collapsed at the edge, panting and grinning like a loon, my head pillowed on my arms to keep it out of the water but the rest of me was still submerged in the warm lake. I sighed happily, closing my eyes, and that's when Cas – the sneaky bastard – decided to take advantage.

His hot, lithe body slid up behind mine, half on his side and half on top of me, one hand splayed out along the bottom of my ribcage for a handhold as he nuzzled behind my ear, a purr rumbling low in his chest that I could feel against my back. "Mmm…I think I like the way wolves get clean, Alpha," he said, and I had to smile, turning on my back so I could look at him. His eyes were bright, glowing almost, hair plastered to his face except for where it had already started to dry because he didn't submerge his head much, curling at the ends. I curled my hand around the back of his neck, pulling him down for a lazy kiss that felt like the morning sun, slow and golden and warm.

I mewled for him when he nipped lightly at my bottom lip, sliding his tongue into my mouth when I opened for him, and sighed happily, relaxed for the first time in a while as my fingers combed through his hair, his hand stroking lazily down my side. I shifted a little, letting my legs open so that he could fall between them, and almost smirked when I felt his hard-on against my thigh. "And you called me insatiable, Alpha," I teased, biting back at him playfully when he pulled away, smirking down at me in a way that made me feel hot all over.

"Hello Pot, I'm Kettle," he replied, and I laughed, shaking my head at the dry joke. I smiled up at my mate – and God, it's so weird to think of him as my mate now – and pulled him down for another kiss, eyes falling closed when he rocked against me, rumbling in the back of his throat. He tasted like the water and I sighed against him, letting him tilt my head back and nuzzle at my throat, teeth catching on my Adam's apple before he slid further down, licking and biting as he went. He nuzzled into my chest, eyes closed and purr almost deafening in the otherwise silent clearing, and I smiled, carding my fingers through his hair as he rubbed his stubbled cheek against my chest, tongue flicking out over a nipple, so cat-like it was unbelievable.

Sometimes it was hard to associate this affectionate, slow-moving and gentle cat with the powerful Alpha I first met, and I was glad that I got to see this side of him, even if others rarely did. In fact, that made it all the more special, because this was Castiel, with me. Not even 'Castiel' – Cas. My mate.

I bit back a moan when he bit down on my flank where he'd pierced my skin before, angry with me over challenging him over hunting. My instinct was to shy away from the pain, but I wanted him closer at the same time. I mewled behind clenched teeth, arching into his mouth as his tongue flicked at the tiny amount of blood, kitten-like, and his hands splayed over my chest for balance before he kept sliding down, kneeling in the water which rippled over my skin, ebbing and flowing and leaving goose bumps behind.

When his mouth sealed around my cock, I howled embarrassingly loudly, arching up into that delicious heat and friction. He moaned, eyes closing as his nostrils flared for air, cheeks hollowing as he just…took it. And fuck, that's hot. He twisted his head, sinking down further so his nose brushed against the hair around the base and I hissed again, desperately trying to grab onto something for purchase. One hand ended up in his hair, knotting at the back of his head, the other at my own mouth, trying to stop more embarrassing noises escaping. I curled my fingers into a fist, biting down on my knuckles as I whined against them, eyes clenched tightly shut as Castiel started doing…fucking illegal things to my cock. His tongue kept curling around the head, dragging over the slit with the rough of it and then licking at the sensitive underside, teeth just catching at the thick vein. I moaned, pulling at his hair just a little too harshly. It was too much, too fucking much, and God, was going to fucking come, right the fuck –

He pulled off. The bastard pulled off, and my breath left me in a huge gust against my fingers. I whined, unable to quite process what the fuck had just happened, when Castiel's face swam into my vision again. I growled at him – because what the fuck?

He smirked, stroking the side of my face with his fingertips. "I told you, Alpha, I have plans for you."

"Death by spontaneous combustion?" I managed to snap back and score for putting together a full sentence when my brain was still a melted puddle of sex-goo. I was shaking, sweat covering what part of my body wasn't in the water, and my cock hurt. Fuck did it hurt. I reached down, intent on finding some relief because I was pretty sure it wouldn't take long at all.

Castiel's hand caught me before I could touch myself, grabbing and pinning both wrists above my head. "No, Dean," he growled, using that age-old voice that was a command I could feel in my very soul, and I shivered, eyes closing as my back arched, trying desperately to find friction against his body. "Be still."

I obeyed immediately. I don't know how – it was just like my body had no choice but to obey, and I realized what he'd done – he'd used the 'Alpha voice', like I had with Sam. Like I had with Castiel before he told me he wanted love from me.

God. I didn't know it could affect other Alphas.

I'm so fucked.

It was kind of frightening that when I tried to fight the 'voice', it hurt. Like acid reflux in my gut, it burned – but I was glad that I could, at least, fight it, otherwise I really would be in trouble. I managed to get my hands to his head and pull him down, and he growled into the kiss, angry that I was disobeying.

Fuck that. I'm an Alpha here, too. I growled right back at him, trying to push him away to maybe get the advantage, but I was still weak from the medicine's toll on my body, and I have a feeling Castiel would have been stronger than me anyway. He pinned me down again with ease, burying his nose in my pulse and inhaling, the exhale coming out as a low, rough laugh. "There's the fight," he purred, his hair tickling my neck as he moved lower down again, and I thought he might actually finish what he started, and was surprised therefore to suddenly find myself lying on my stomach.

In a lake where you can easily cut your feet stepping in the wrong place, having my cock trapped between my body and said lake bed could have ended very…messily. Luckily, I ended up having no such problem, coming into contact with wet dirt, comparatively soft against the roots. The move had lowered me in the water so my shoulders were almost completely submerged, and I couldn't rest my head.

He plastered himself to my back so I had to hold both of our weights out of the water. One hand wrapped around my stomach, pressing upwards so I lifted my hips, and the other's fingers dragged over my hole, just pressing around it. God, the Alpha cat is such a fucking. Tease. I told him as much and he laughed, his voice gravel-rough and deep against my ear; "A tease doesn't deliver, Dean. I intend to."

He pushed one finger in, to the first knuckle, and I hissed, clenching on reflex and trying to force him out, because in reality it hadn't been that long a time since we'd done it, but I felt like a virgin all over again. (Yes, I was an ass virgin, thank you. What can I say? – Alphas don't usually bottom). This Cas was not the same as the Castiel I had first met, and I felt the same sort of difference in me as a tangible thing. I shivered when he pet down my flank, soothing me in his low rumble of a voice as he kept pushing in, burying his finger in me as far as it could go. My breath left me in a huge gust when he crooked his finger, dragging along my prostate, white fire running up my spine. I shivered when he twisted his finger, pulling it out before pushing back in, and my head dropped. I had to shove up onto my elbows to stop myself inadvertently drowning, and he knelt back behind me so that I didn't have to hold us both.

The water wasn't a good lubricant, so Castiel took his time with me, and I was so turned on it was painful by the time he actually got to the good part. He slid in slowly, so that I could feel every inch of him filling me up, and I groaned when he bottomed out, feeling very close to collapsing. That would be embarrassing as hell.

Castiel's fingers dug into my hips as he pulled me back onto him, hissing when I clenched at the action, taken by surprise. He ran a hand up and down my spine, his palm large and warm against my tense muscles, urging me to relax, and I was trying, really, but it was difficult. The pleasure was actually painful. My cock hung heavily between my legs, and with every thrust Castiel sent a lightning shock of more pleasure through me. I had to come now or I was pretty sure I'd die.

"Castiel, please," I begged, ripping at the tree roots under my hands as I desperately tried to grab for purchase, rocking back onto his cock as I whined, high-pitched in the back of my throat. I shuddered when his teeth sank into my neck, reopening that bite wound (yet again – Jesus) and I came without him touching me, making a choked-off sound that was probably something between a growl and a moan and as embarrassing as both. Castiel growled, his jaws clamping down and drawing blood as he kept rocking into my boneless body, and I mewled when his hand wrapped around my spent cock (too late, jerk) and squeezed, milking me through my orgasm until I really did collapse, breathless with my head just out of the water, and he stilled, filling me up with a low, muffled, wet groan against my shoulder. "Fuck."

Castiel chuckled, pulling out with a low hiss. "I think we just did, Alpha," he replied, chuckling again. I was too tired to respond, so settled with giving him the finger. He laughed again, biting at my wrist as I let it flop back down and plastered himself to my back, heaving a long sigh against my neck. "Dean?"

"Yeah, Cas?" I asked, the words kind of slurring together and it came out more like a 'NyhCs'.

He carded a hand through my hair, nuzzling into the back of my neck. "The pack's not going to be happy about this. About you and me, and our brothers. There's only so much I can order my cats to do."

I sighed, because really? I'd just shot all my brain cells out my dick, and wasn't in the mood for such a serious conversation, but I knew it had to happen sooner or later. "I think that my wolves will be welcoming for the most part. We're fairly open-minded and liberal as it is. I think that…things will work out more or less, Cas, and you can't worry about what others will say about it. I mean…" I half-shrugged, blinking my eyes open to meet his. "It's not like they can do anything about it."

He 'hmm'ed quietly, still looking worried, his brow furrowed in thought and eyes dark with anxiety, and I sighed again, turning onto my back to look through the hole in the tree canopy. It was getting lighter – sunrise wasn't far away. "We'll go back in an hour, and call a meeting, and explain everything. And then you shall send for the rest of your cats. Anyone that has protests will be dealt with before the actual move happens – I won't have civil war on my own lands," I said fiercely, knowing that except for a few wolves, my pack was probably going to be fairly welcoming – we were, after all, the ones reaching out to try and mend the divide between wolves and cats. We'd be hypocrites otherwise. "Those that have problems can go through me."

Castiel chuckled. "Why, Alpha, where did this fierce warrior come from?" he asked, amused. I smiled back at him.

"Honey, you ain't seen nothin' yet," I told him, hoping that all went well, and he would never have to.