#alpha!dean winchester x omega!read3r

[jawritter]

Born Under The Wrong Sign

Part 2

Summary: Dean Winchester, hunter, killer of Gods, demons, and monster, was born as an Omega. It never felt right, and he wants a change of biology. After all, just cause it’s what we’re assigned, it shouldn’t identify who we are…

Pairing: Omega!Dean Winchester x Alpha!Reader

Written For: @spnkinkbingo​​

Square field: Total Power Exchange

Word Count: 2511

Beta’d By: @miss-nerd95​​! Thanks again hun!

Dividers by: @firefly-graphics​​

Rating: Explicit

Warning: Identity Crisis? ABO Dynamics, smut, unprotected smut, mention of past abusive parents. John’s A+ parenting,  knotting, dirty talk, language, talk of sex change and presentation changes. Some self hate. Claiming, knotting, mating, hint of a possible breeding kink. I think that’s about it.

A/N: This is the first fic I’ve ever written like this one, even for ABO, and even though I’m sure they’re out there I’ve never read one quite like it. So, that being said, I’m pretty nervous about throwing this one out there for you guys! So I really do hope you enjoy it! Feedback is golden! Please do not copy my work! This is part 1, part 2 will drop later this week!!

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A lot had taken place since Dean’s heat ended three days ago. 

Step one of your plan to find a way to switch your biological presentations started with you contacting Sam at the men of letter’s bunker, and setting him to work researching to see if there was any lore that could help you both in your pursuit. 

Dean was worried that Sam wouldn’t be supportive or understanding of his current predicament, but Sam was more than willing to help his brother in whatever he chose to be. John still had Dean repressed a little to this day, it was a deep rooted fear of Dean’s that his family would be ashamed of him or reject him for feeling what he felt. Still, Sam set to work right away. 

Now it was just getting back to the younger Winchester at the Bunker and seeing what he found. You had taken a few days to make sure Dean recovered from his heat before traveling with him. This one had been bad, and he was still pretty tired, but he was also anxious to get back to his brother and see what he’d dug up. 

Dean was in his post heat, clingy phase as well, which added to traveling difficulty. Instinct was telling him to nest down and cuddle with you, and that was hard to do and drive, so it put you behind the wheel of Baby while he lay curled the best he could across the seat with his head in your lap. 

You subconsciously stroked his hair with your free hand as the miles rolled underneath you both and carried you closer to home. You would occasionally glance down at Dean, and you did note that he looked uncomfortable in this position, but what other choice did you have? You had to get to the Bunker as soon as possible if you were going to find an answer to this problem at all. 

Dean had fought against his biology for so long, that when the Omega side of him was more prevalent around his heats it looked odd to you. You were so used to Dean carrying himself as an Alpha would, that it almost looked as unnatural to you as it felt to him, and you could clearly see that he was not meant to be an Omega. This was clearly a mistake of biology. 

The same stood for you. 

You didn’t really carry yourself like an Alpha, even in private when it wasn’t needed that you held to the act to protect your Omega from being killed by other hunters who called Male Omega’s 'Genetic Freaks'. 

You loved to be close to Dean, almost as much as he liked to be close to you, and you were surprisingly submissive to him on the every day occasion. You even often let him have the upper hand in the bedroom, something he really enjoyed, and man you loved it when he took control. It felt more natural to you, it felt right, and you would be a liar if you said you hadn’t fantasized about Dean calling you his Omega just as much as he did. 

Your small frame even contradicted your Alpha status. It made protecting your Omega harder, because if someone was attracted by his unmistakable Omega scent when you weren't around to claim it as yours, especially another male, they could probably overpower you. That scared you a lot, especially in bars where the threat could turn real, real fast. 

You were relieved when you pulled up to the bunker, and didn’t have to stop the whole way. Dean being on the heels of his heat made his scent more prominent, even under suppressants, and you didn’t want to fight with another Alpha at a gas station. 

As the two of you made your way down the iron staircase of the Bunker, you could hear voices echoing through the walls of the place, one of which you recognized right away. Rowena MacLeod. That meant Sam must have found something.  Or, you thought sorrowfully, he found nothing, and he called for backup. 

You exchanged a look with your mate before entering the library where Sam, Rowena, and Cas were all gathered probably waiting for you.

You dropped your duffle bag to the floor with a thud as Dean looked to his little brother with a look of almost desperation. 

“Sammy, please tell me all these people here means you found something,” Dean pleaded, and Rowena guided the slightly trembling Omega to a seat in front of a bowl full of ingredients for a spell, and you took the one next to Dean; taking his hand in yours to give him a sense of security as much as you could. 

“Well, we think we have found something that can be tried,” Sam said, moving to the spell book that was open at the end of the table as Rowena grabbed your laced hands, and placed a twine of what looked to be rope laced with lavender around both of your wrists. 

“Apparently, you two aren’t the first to feel like you were born with the wrong presentations,” Rowena explained, adding a few more ingredients to the bowl before plucking a piece of hair from each of your heads. 

“So this spell is going to virtually swap our presentations?” you questioned, looking between the three other people in the room. 

“That’s the idea,” Cas answered, folding his arms over his chest. "I’m here just in case anything goes south and you guys need a quick healing.”

“The spell is painless,” Rowena interjected, seeing Dean’s worried expression as his gaze shifted between you and Cas. “But the spell will change you on a molecular level, so Castiel’s presence is just a precaution, really.” 

“You ready for this,” Sam asked his brother, who then looked at you with worry swimming in the green depths of his eyes. 

“You sure you want to do this with me. That you won't regret it?” Dean asked, and you tightened your grip on his hand in assurance. 

“I told you, Dean, I want to do this as much as you do,” you assured him and he leaned his forehead against yours. 

“Okay, do it,” Dean said to the room, and as if on cue Rowena began chanting over the bowl, her eyes glowing a bright purple before she struck a flame to the contents and a warm feeling rushed through your body as the twine around your wrist disintegrated in a flash of light. 

For just a moment, it seemed as if the world stood still as the whole room watched the two of you, and for a moment you were afraid nothing had changed. That was until you caught Dean’s scent. It was stronger, more potent than you had ever smelled it. Warm sandalwood and whiskey with just a hint of mint, and your mouth literally watered at the scent. 

You opened your eyes just in time to see the yellow glow of the Alpha now residing in your mate’s eyes fade as his gaze locked with your own, and a deep rumble growl erupted from his chest as he pulled you into his lap like he was scenting you for the first time. 

“Fuck, you smell amazing, Omega,” he said, rooting around your mating gland with his nose before lapping at where your claiming mark would very soon reside. Slick was already gathering in your panties just from him touching you, and everything was so intense it was almost breathtaking. This is what you had always been missing. It felt right, and for the first time in his arms, you felt like you were finally home as you purred against him.

Sam clearing his throat loudly reminded you both that you had an audience, and Dean reluctantly pulled away from you to glare at his little brother with annoyance. 

“Well, I take it the spell worked,” Rowena chuckled before grabbing Sam by the arm. “Come on you two, let’s leave them to it. They need to get reacquainted with each other.” 

They made a quick exit, and you and Dean watched as they retreated up the stairs and completely out of the bunker, leaving you alone with your Alpha. 

“Well, looks like we have to get 'reacquainted',” you told Dean, looking up at him and finding his lust-filled gaze staring down darkly at you. 

You noticed he was sitting a lot straighter and looked all together more stronger. It suited him. You also noticed that your old claiming mark was gone as you ran your fingers over the empty space over where it used to lay over his now smooth skin, and a shiver ripped through his body. 

“Don’t have to tell me twice, baby girl,” he rumbled, lifting you with ease and carrying you towards your shared room. 

It was as if your body was already in tune with your new Alpha, and every step Dean took towards his room, the wetter you became.  The light cramps of your first heat were already licking at your abdomen, making you whimper and nuzzle closer to him and his scent. 

Once you were in his room and the door kicked closed behind the both of you, Dean made quick work of the clothes that were covering both of your bodies and was now hovering over you, exploring your body as if he was seeing it for the first time again. His lips making trails, memorizing what makes you tick all over once more, taking your breast into his warm mouth, sucking and lapping at your body until you were all but begging him for his knot. 

“Hang on Omega, I got to warm you up first,” he murmured against your lips and you shivered as his fingers descended on your slick folds, running through them before breaching your entrance with ease. He pumped and curled them, adding a second finger, then a third; pressing his thumb against your throbbing clit as your body fell apart around his fingers and he scissored you open, preparing you for his knot as he kissed you drunk, swallowing your moans as pure pleasure washed over your body. 

You whined at the loss of his fingers when he finally removed them from your body, and he chucked against your lips, pecking them softly, and nibbling along your lower lip.

“Please, Alpha,” you beg him. “I need you to knot me, stop teasing.” 

Dean grunts lowly in his throat, licking at your mating gland and rutting his already leaking cock through your folds, making your body arch off the bed to meet him in a silent plea to be fully filled by him.

“God you have no idea how long I’ve dreamed of you calling me Alpha, sweetheart,” he admitted kissing you deeply. “Gonna take such good care of you Omega.”

You shivered at the mention of your new presentation while nipping at the skin of his throat. 

“Turn over and present for your Alpha, pretty girl, let me see what’s mine,” he commanded, and before the words were all the way out of his mouth you were on all fours, presenting for him. The deep approving growl that fell out of his mouth had slick literally siding down your thighs. 

“So fucking beautilful, baby girl,” he praised as he slowly pressed the tip of his cock into your waiting heat. “This pussy mine baby girl, all this slick because of me?”

“It’s all yours, Alpha, all for you,” you told him with a keen as he snapped his hips forward and seated himself fully inside your heat with a deep groan. 

All thought process, all words, everything flew right out the window as humanity faded away and pure animalistic instinct took over as Dean pounded relentlessly into you, driving you higher and higher until you could feel his cock swelling further and his knot starting to catch with every thrust. His fingers slipped from your hips to your clit and he began to rub furiously in time with his pace until you were screaming his name and coming around his knot as it locked the two of you place as he lifted you body against his, his teeth latching deep in your throat, calling you as his as he spilled into you, filling you with his cum. 

When you finally came down from your high, Dean was licking at your new claiming mark, healing it only the way an Alpha could, and he was lowering you both so that now you were on your sides. 

“You okay, Omega?” He asked, purring as he nuzzled into your hair, reveling in your scent that was mixed with his own. 

“Perfect, Alpha,” you said, slipping down deeper into his hold.

For a long time no words were said, no words were needed. The unexplainable peace that was between you was enough. For the first time, everything was as it should have been all along.

Dean always knew, he just knew he was never meant to be born as an Omega. It was something deep down inside of him that just was always there from the moment he presented, and the same was for you. For the first time. Everything felt right. 

“You know, maybe we can try to have pups now,” you said after a while and Dean’s body had already been detached from your own. 

“What?” Dean asked, sitting up on his elbow and tucking the strand of your hair away from your face that had fallen. 

“Maybe we can have pups now. I mean, It’s not as dangerous for me to carry them, and now that I’m an Omega we don't hide my heats away. I could stay here at the Bunker and raise the pup and help with research...I don’t know. It’s just something I want with you now.”

Dean thought for a moment before bringing his lips to yours in a slow kiss, one that made your toes curl. 

“You know what sweetheart, I think I like that idea. A lot.” Dean admitted. 

This was the first day of the rest of your new lives together, and now there was a chance to have a family, and Dean knew then. He was really and truly finally at home in his own skin for the first time. 

“I love you, ya know,” he told you, slipping your leg over his hips and sliding his already hardening length into your still slick center. “My pretty Omega.”

“I love you too, Alpha,” you  purred as he slowly started to rock his hips into you, dragging his cock through your heat and sending waves of deep pleasure through your body. “Now fuck a pup into me baby. You know how impatient I am,” you teased him. 

“Yes, ma’am,” he laughed. There was a promise laced in that chuckle that sent a shiver down your spine. It was the first of many promises he intended to make good on, and you couldn’t wait to start a family with him. Your Dean, your Alpha.

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