Chapter Text
Since their time in the car, Castiel noticed that Dean had begun to act differently. It was almost as if the Alpha started to avoid him. There was no way that Castiel was going to deny that he was hurt and offended at Deans behavior, but he tried to keep a logical head about the situation. There had to be a reason for this and Castiel wanted to get to the bottom of it. He was Dean’s mate after all.
With a week going by, Dean began leaving the house early and nearly avoiding Castiel. The nekojin was pretty much peeved and wanted an explanation.
While Dean was in a deep sleep, the little Nekojin crawled from the bed and waddled down into the kitchen, his tail swaying lazily behind him. He wasn’t even fully into his second trimester and yet he already felt as if he were about to pop. If carrying a hybrid baby made him feel this way, then he was going to have to make sure he started birth control. A second pregnancy wasn’t something he wanted to go through right away.
Castiel padded softly to the fridge and looked inside. He sniffed at everything that looked appealing but his stomach churned in disgust. Instead, he opted for the freezer and took out the carton of strawberry ice cream to eat. After grabbing a small platter of cubed venison and a spoon, he sat at the breakfast nook that overlooked the the lake that was behind their houses.
The young Nekojin hummed in delight at the mix of savory and sweet mixing together on his tongue. Since being pregnant, his taste buds had become haywire. Even though he wanted perch or salmon, he couldn’t stomach it and would throw it back up. So, Dean hunter for him and grilled the meat to give it the smoky taste he liked.
When the sun was higher in the sky, Castiel heard Dean walking down the stairs. Over the strawberry ice cream, Castiel caught a whiff of something that was overbearing and mouthwatering at the same time. Something was wrong. Dean made his way to the kitchen entry and stood there with his head lowered. He was panting as if he had been running for hours and his hands appeared clammy. There was a heady scent radiating from Dean. Sandalwood and that one scent that he was now able to classify as Amber.
“Cas…”
Dean’s voice broke the silence and scattered Castiel’s thoughts. “Y-yeah? Everything okay?” He asked, feeling heat rise in his stomach the longer Dean’s scent was within his vicinity.
There was another beat of silence.
“I think … it would be best if you went to stay with Sam and Sarah for a few weeks.”
A FEWweeks? Castiel thought, wondering why this was now coming from his mate. “Why?!” Castiel’s voice went higher than he was intending but he couldn’t help but feel peeved and hurt. “Dean, what’s going on?”
Dean remained quiet for a while before finally looking up to meet Castiel’s gaze. His eyes were no longer their lovely shade of green. They were black with a glowing green rim. His pupils were fully blown. Then, Castiel noticed the amber scent was beginning to grow while filled with arousal and pheromones until it flooded the kitchen.
Castiel pressed his knees together, praying that Dean hadn’t noticed, and shifted in his seat. He could feel himself getting wet, as if his body was preparing to take in his Alpha’s knot.
Rut.
Castiel’s heart began to beat faster until he was only able to hear whooshing in his ears. Dean’s rut was near and Dean wanted to make him leave.
“I’m not going to to leave and stay somewhere else while my mate needs me,” Castiel said, his eyes narrowing as if he were challenging his alpha. “I’m staying right here with you.”
It was the Alpha’s turn to narrow his eyes. Dean took a step into the kitchen and froze. Even though Castiel was pissed off at him, he was still able to smell the arousal that wafted through his pheromones. A low rumble sounded in his chest as he closed his eyes. The alpha wanted nothing more than to have Castiel filled with his knot while he watched him drool and cry while writhing in pleasure. Dean took on a sharp breath at the sudden tingle that trickled down his spine.
“Cas, please. I don’t want to hurt you. I should have realized it sooner but I thought I could do things to keep myself on check but I can’t,” Dean said, sighing and shifting his eyes to gaze at his mate. Their eyes locked, Dean’s glowing brighter. “It’s just until this is over…”
Castiel frowned and stood up from his seat. He slammed the spoon onto the table with a scowl on his lips. Did Dean really think that Castiel would leave him to be in this alone?
“I said I’m not going anywhere. I’m your mate, aren’t I?” He questioned and took a step forward.
Dean instantly stepped back to keep the distance between them. “You are my mate. And I love you… so fucking much. However, I can’t … I don’t think I can control myself. You smell delicious and all I want to do is eat you. I want to fuck you and eat you at the same time and it’s getting hard to keep calm,” Dean said with a heavy sigh.
Castiel balled his hands into fists and placed them on his hips. In any other situation, he would have thought he looked funny considering how big his stomach was. “I don’t care. I’m your mate and I refuse to let you go through this alone. I am yours, just as you are mine. We help each other through these things. You are going to be there for me during my heats so why can’t I be here for you during rut?”
Dean clenched his jaw, his gaze becoming predatory as he watched Castiel take a step towards him. Even though Castiel was his mate, his instincts were basically fighting in his head to fuck Castiel silly while leaving him covered in bleeding marks. There was an underlying hunger that he felt. Like that of a wolf watching a bunny before it was ready to attack.
Castiel inched closer, noticing the strained look on his mate’s face. Dean’s eyes were clenched shut and the smell of metal filled the room. Dean’s hands were bleeding where his nails had dug into his skin.
“I’m not leaving you,” Castiel whispered once he was close enough to Dean and reached out to cup the Alpha’s jaw.
Dean turned his face into the touch, his body instantly betraying his reason. Within an instant, Dean’s arms were around Castiel’s tiny frame. He held the little Nekojin close, his own body curving to support the large bump. His hands slid down to the base of Castiel’s tail and feathered his nails there.
As Castiel rested his head against Dean’s chest, there was a loud crack that caused him to jump and stare up at the alpha. As Dean held Castiel to him, there was another loud crack that the nekojin felt against his back.
“De —,” Castiel began but was cut off from Dean’s lips against his.
The kiss was deep and dominating. Castiel could feel himself slipping with the strength of the kiss and Dean’s pheromones. The Amber scent grew stronger as Castiel felt ripples through Dean’s body. Unsure of what to do, Castiel reached up and grasped Dean’s head to hold him in place. The Alpha’s eyes were glowing and his fangs had extended, becoming thicker than before. Castiel wasn’t sure what was happening but he knew that he didn’t want Dean to suffer alone.
Another loud crack brought Dean down to his knees.
“De— What’s happening?!” Castiel began to panic as he noticed the ripples with Dean’s arms becoming prominent.
His veins became visible beneath his skin and his hair became drenched in sweat. Castiel could feel heat wafting from his mate. The little Neko then squeaked at the scorching touch against his burning thigh. Dean began pressing open mouthed kisses along the front and outer side of Castiel’s thighs. Castiel quickly grasped at Dean’s hair to pull him back but felt something that made him draw back in shock.
The Alpha grasped onto the back of Castiel’s thighs to keep him from falling backwards. Dean began his ministrations again, trailing his kisses to the underside of Castiel’s bruised belly. He kissed over each one that poked through the white fabric. Castiel shuddered as he tried to push Dean off but the alpha didn’t budge. It was as if Dean had become a rock. There was another thing that Castiel couldn’t help but be curious about.
There was a pair of large, fluffy, black ears were nestled with Deans wet hair.
What’s happening?
The air around Castiel became stifling as Dean slowly rose to his feet. The excruciating sounds ceased and the only thing he was able to hear was the light rumble that was added to Dean’s breathing. The Alpha’s shirt was ripped in random places as if Dean had hulked out of his clothes. He even sported large ears that rose out of his hair. Was this what Dean wanted to hide from him? Perhaps he could ask Sam about it later but for right now, he wanted to soothe his mate.
Dean began sniffing at Castiel’s belly, leaving little peppered kisses in his wake. When Dean stood upright, Castiel knew he seemed a little bigger than before.
The nekojin took a step back, his eyes never leaving the Alpha and watched as Dean took a step closer.
“WAIT!” Castiel shrieked, his heart hammering in his chest as he brought his hands up.
The Alpha didn’t stop. Castiel’s hands pressed flush against Dean’s stomach. Even through the ripped fabric, Castiel could feel how hot Dean’s body was. A scorching hot hand pressed and gripped Castiel’s bottom, causing the little neko to squeak out in surprise.
“Mine.”
Castiel shuddered, a low moan involuntarily escaping him. Dean’s voice was husky and soft compared to his normal speaking voice. It felt as if a spiked chain had coiled around his small frame and began to slice into his skin.
“You refuse to leave when requested.,” The alpha said while letting him glowing irises focus on the small being in front of him. “How brave of you.”
At this, Castiel huffed and slapped his tail against Dean’s side. “I told you that I would not leave you.”
Dean leaned down, causing the nekojin to flinch, and burrowed his face into the crook of Castiel’s neck. The sensation of Dean’s tongue gliding across his skin made him shudder. The alpha began to lick and lap at his mate until he was able to reach their mating bond. The electrifying force nearly made Castiel fall to his knee with the way his knees buckled.
“I like your stubbornness, little kitty.”
Little kitty? Castiel thought but before he could address the situation, another moan was drawn out of him from the hand that was on his bottom.
“I hope you realize what you’ve gotten yourself into,” Dean whispered, his voice low against Castiel’s perked up ear.
From that point on, Castiel realized just how severe Dean’s rut would be. The stifling aura, the intense amber scent, and the scorching heat that radiated from Dean’s skin. This wasn’t his usual mate.
***
12 Years Earlier
“Do you think you could tell me a story before bed, Nana?” Castiel asked, his voice pleading as he looked at the older woman that was hovering over him.
She smiled, her expression soft with adoration. She eyed Castiel steadily before relenting at the young kitten’s determined stare.
“Oh fine. I’m afraid I didn’t bring any books with me. Will a folktale do?”
Castiel nodded eagerly while snuggling up beneath his blankets.
“You know how there are people and wild animals in this world? How we have humans with sub-genders? Well, long ago, there was a legend that there were more than just humans roaming around the world. My precious Castiel should know,” The woman smiled softly while reaching out to ruffle his curls. “During the time where there were a lot more Alphas, there lived people who had the ability to shift into their spirit animal. These creatures were called Shapeshifters, but the name was cut down to just Shifters.
These creatures could range from anywhere to being a werewolf, a werecat, werebear, or even just a little nekojin like you are. But my little Castiel cannot change. Your ears and tail just signifies that there was someone in your bloodline that had these abilities,” She said, her eyes kind as she stared at the little boy.
Castiel stared up at her in confusion and awe as he listened to the tale.
“The only thing that makes them different from you, my little kitty, is the fact that they can change into their spirit animal and at times, their spirit animal can take over and assume the identity of their human. To tell them apart is to watch for the ears, eye color, or demeanor of the person. Their spirit animal may be the Alpha of an Alpha or the omega side of one,” She stated, continuing her tale. “If you ever come across one of these people, make sure to listen as they can sometimes be feral but if they are your mate, do not be afraid. Just be confident in yourself and don’t back down to your mate.
It would be best for you, my little kitty, to have an Alpha. Betas are nice and all, but if you find an old fashioned Alpha, they will cherish their Omega. There wasn’t any assaults going on long ago. People think that Alphas only run on instincts and the pheromones of an omega but that isn’t completely true.”
The woman paused with a far away expression on her features.
“There was a time where Alphas cherished their mates. They protected them because that’s what an Alpha does. They protect, they guide, and provide for their family. The older generation has started to die off sadly. The newer ones are not the kind that will do any of that for their partner. These new generations are just out for greed. People will say that alphas are dying out but I think that they are hiding.
“And as for the shifters, I think they are hiding as well, some probably in plain sight so they can blend in with humans,” She said with a sad expression. “Y’know, when I was a little girl, I believe I came across a shifter. It was a man I believe… they just stared at me with glowing yellow eyes. Then, they ran off. I chased after them and their footprints turned into paws mid-run.”
***
Castiel knew that Dean was a shifter, well to be specific, a lycanthrope. To many, they were the same but a lot of people didn’t know that Lycans can change at will and didn’t need a full moon to do so. They can stand upright or run on all fours. They were smart, cunning, and very resilient. Castiel knew this from watching Dean whenever he got a glimpse of his wolf. However, this was the first time he’d ever come face to face with Dean in a Demihuman form. The cracking sounds that he’d heard earlier was Dean’s bones elongating to accommodate the Lycan in a Demi form.
He stared up into the green eyes that stared just as intensely back at him. His heart thudded against his chest as if it were trying to burst through his rib cage. The pheromones, scent, and aura of the Alpha was making Castiel feel lightheaded.
“Don’t regret this,” Dean said, his eyes glowing a bright green.
Before Castiel could give his answer, Dean had cupped the kitten’s cheeks and crashed their lips together in a heated kiss. A soft mewl sounded in Castiel’s throat as he was lifted up to his tiptoes.
Dean took ahold of Castiel’s bottom lip between his teeth and pulled gently. Rough kisses were pressed against Castiel’s jawline and began moving down until they were over his mating mark. Dean grazed his teeth over the area, occasionally nipping and biting the skin around it until the entire area was red. Castiel’s knees wobbled, feeling as if he were going to collapse into a puddle of goo.
Between their flushed bodies, Castiel was able to feel Dean’s semi-erect cock pressed against his thigh. Has it always been this thick? He wondered as Dean began to grind against him.
“Wa — wait!” Castiel gasped out and pressed his hands against Dean’s chest as if that would stop the alpha. “What about food? A-aren’t you hungry?”
Dean’s eyes flickered from green to yellow and then reverted to their natural green color.
“I plan on eating you.”
A chill ran along Castiel’s spine from the ominous choice of words.
“Eh?! Wh-what do you mean?” Castiel’s heart was thudding frantically.
The alpha just smirked.
***
Such a predatory glare… Castiel thought while scuttling himself to the headboard of their bed. Before he could escape any further, Dean grabbed ahold of Castiel’s ankle and dragged him back down towards him so that their hips were flushed together.
“Where is my meal running off to?” The alpha whispered. Dean’s voice was husky and smooth.
Meal? Panic was stricken along Castiel’s face. He’d never seen this sort of behavior before. Was this how all alphas acted when in an official rut that wasn’t brought on by each other’s pheromones? Castiel didn’t know. Dean’s entire personality changed and Castiel wasn’t sure how to feel.
There were an array of emotions scattered about that he was feeling and scenting from Dean’s overbearing pheromones. Being in a closed space with the alpha made Castiel’s head spin. Being moved around so fast wasn’t helping him.
Then, it began.
Dean’s eyes completely checked out when he was able to smell the arousal and fear from his mate. I want him. I want to eat him. I want to taste him.
The only thing that was on the alpha’s mind was to breed his pretty mate. He needed him full. He wanted him full.
“You smell so good … I can smell myself on you …” Dean whispered, his lips brushing against Castiel’s scent glands. “I want to eat you …”
Don’t be afraid. Don’t be afraid. Don’t be afraid. Castiel thought repeatedly and tried to steel his nerves. Dean was his mate. He wouldn’t do anything crazy like eat him for real. He did tear a werewolf apart.
Castiel let out a startled gasp when he felt Dean’s teeth sink into his collarbone. The small nekojin twitched violently as Dean began rutting against him. Castiel spread his legs, allowing Dean access while he lapped at the blood that came from the wound. There was another bite that wasn’t as hard but it was still enough to make Castiel shudder.
“I’ll never let you go.”
At those words, Castiel’s eyes filled with tears. It had to be Dean’s rut. But even so, Castiel wasn’t going anywhere. He belonged to Dean and he was going to stay and prove it to him.
Slowly, Castiel rolled onto his hands and knees, lowered his upper body, and then presented himself to his mate. The action earned him a growl of approval. The shirt that he wore fell up, causing the fabric to brush against his sensitive nipples. Don’t be scared. Don’t be scared. Don’t be scared.
“I want to keep you full and swollen with my pups,” Dean whispered againt Castiel’s lower back. “So many pups…”
The thought of Castiel constantly being pregnant and aching sent a shudder through his body. Even though he was completely lucid, his body was still reacting to Dean’s pheromones. He could feel how wet his thighs were just from Dean’s rutting. Behind him, he heard rustling and felt the bed move as Dean began to undress. Castiel clenched his teeth together and closed his eyes so he could try to relax.
Castiel’s eyes then sprang open with a startled gasp as he felt Dean’s tongue enter him. Immediately, he noticed a difference in the way his mate’s tongue felt. It was thick, rough, and longer than before. It reminded him of the way Dean’s tongue felt when he shifted. Just the way his tongue curved and swirled around had Castiel trembling with the intense feeling of wanting to cum. A pair of rough hands pressed against his bottom and spread him open wider, making Castiel feel exposed.
It’s for my mate. I love him. He wouldn’t hurt me.
With a bit more access, Dean’s tongue slipped further into the honey soaked cavern and began lapping at the nectar that flowed. Soft growls and grunts filled Castiel’s ears, causing him to put in excitement. Dean’s mouth was hotter than usual and the mixture was starting to drive him crazy. His back arched, lifting his hips further towards Dean’s mouth. Soft pants began to escape him once his mouth fell open. The heat pooled into his abdomen, traveling down until it reached his sensitive groin.
The small Nekojin’s claws began to grip at the thick blanket as his body trembled from the shock of his sudden orgasm. His slick squirted around Dean’s mouth and onto the bed. However, the Alpha continued to lap at what flowed, earning another orgasm and a loud cry from the kitten.
Before Castiel could pull away, Dean’s hands were on his hips, holding him in place so that he couldn’t escape. Dean began biting and kissing along Castiel’s bottom and the back of his thighs. Dean’s teeth grazed over his mate with an unyielding hunger.
Pheromones clouded the room.
“I want you,” Dean whispered in between bite marks.
Castiel whimpered, nodding his head as if to urge his mate to continue. Each bite that was placed upon him stung but he was willing to put up with it. It wasn’t that they were aggressive, but they were hard enough to leave marks upon him. For a moment, it seemed as if Dean was only focusing on him. His hips twitched when he felt Dean’s wet hand wrap around the shaft of his own small cock.
While Dean’s rough hands stroked him, the Alpha planted tender kisses along the bite marks that he had created. He began rubbing his cheeks against Castiel’s skin, scenting and marking him even more. The only thing that was on Dean’s mind was making sure that Castiel smelled of him. While trailing his lips along Castiel’s spine, he began rutting his hips against Castiel’s bottom. Castiel hissed softly from the roughness of Dean’s tongue gliding up to the center of his neck.
Dean was fully erect now. He aligned his hips with Castiel’s and slid his member between Castiel’s thighs. At this, Castiel whined because he was looking forward to Dean entering him. Castiel was only met with a chuckle from the alpha.
“So pretty,” Dean whispered as he began to thrust his hips. His entire front glistened with Castiel’s slick. “So wet … smell so good. You were made for me,” he said, babbling mainly to himself. “All mine.”
The changes that Castiel noticed was something that he was going to have to ask Sam about. A sharp pinch brought Castiel out of his thoughts. Dean had bitten him again. He knew that he was going to be bruised once they were finished. Between Dean and the pups, he wasn’t sure which was worse. His body was trying to accommodate for both of them but it only made him tired.
The tiny nekojin whined, arching his hips higher for his mate, and removing the friction. Dean growled, gripping Castiel’s hips hard enough to leave red prints on the milky skin. Dean then aligned himself and slowly pushed the head of his cock into his mate’s hot walls.
TBC