Summary: y/n has had enough of Dean flirting with other women. (Even though he is only her best friend)..so she takes matters into her own hands and makes a decision that will ultimately alter her and Dean's relationship forever.

Warnings: smut (mdni), jealous!dean, jealous!reader, p in v, dirty talk, v fingering, semi-public sex, angry!dean, fluff, slight choking, sex in the back of baby (hehe), only my 4th time writing smut so I'm sorry if it's bad. Also, not proof read so lmk if you see something wacky :b (Also my first ever dean fic! yay! Hopefully many more to come)

You were so done.

Being hopelessly in love with Dean and having to watch him flirt with other women everyday was starting to become exhausting. So as you sat there in one of the bar's booths with Sam, you had come to the conclusion that you were done.

"Y/n?" Sam called out your name, snapping you out of your anger filled daydream. "You okay?"

"Yeah, uh I just gotta take care of something.." You quickly got up from the booth and spotted the guy from earlier that had been flirting with you. At first you gave him hardly any attention because all your attention was solely set on Dean but as the bright idea popped into your head, you decided it was his lucky day.

Dean's pov

The chick in-front of Dean was starting to bore him if he was being honest. She was hot, don't get him wrong but she wasn't the woman that plagued Dean's mind 24/7. If he was being honest with himself, Dean wanted y/n more than anything in the world but the fear of rejection and their relationship shifting into anything else but romantic stopped him in his tracks. In his mind, y/n deserved so much better than him. Who would want to deal with all the baggage he came with?

"So do you wanna get out of here?" The blonde woman in-front of Dean purred, raising her hand up to tug on the collar of his flannel.

Dean nervously laughed, before his eyes drifted back over to the booth y/n and Sam were sitting at, noticing y/n pushing herself up from the booth. Y/n's determined and angry orbs locked onto Dean's for a split second before she confidently strode over to some guy at the bar. Noticing it was the guy that had been flirting with y/n earlier on in the night, Dean's curiosity turned into something else as he watched his best friend stomp up to the man.

His brows furrowed as he watched y/n tap on the man's shoulder, but as the guy quickly spun around not able to even get a single word out of his mouth, y/n yanked the guy by the shirt and smashed her lips onto his.

Complete shock and anger quickly surged through Dean's frame. A pit of poison bubbled in the eldest Winchester's stomach as he watched the scene before him. He was truly at loss for words. Y/n hardly ever took anyone home, more or less made out with a stranger in a bar.

Y/n's pov

He tasted like cigarettes and cheap tequila. Two things y/n hated.

But hey, at least he was a good kisser. You sighed into the kiss as the guy whose name you forgot deepened the kiss and tugged you a little closer to him. He wasn't Dean but he would do the trick for the night.

After a second or two 'Levi'? you think his name is pauses, causing the two of you to break apart. "See you finally came around.." Levi shot you a smirk, making your stomach twist for some odd reason. "Wanna get out of here?" He asked, causing a you to give him a small nod.

Levi was the one to make the move next, grabbing you by the back of your neck and smashing his lips onto yours.

Before the kiss could get too heated again, a large hand roughly yanked you away, causing you to let out a surprised yelp in response.

"It's time to go." Dean's tone sent shivers down your spine. He looked absolutely livid.

Cocking your head to the side you ripped your arm out of his grasp and shot Dean a smirk. "No it okay..." you played innocent. "Me and...Levi here are about to leave. Don't count on me come back to the motel till tomorrow." You shot Dean a wink before 'Levi' broke the thick tension.

"It's actually Liam..." The guy corrected, making your mouth form into a O before you turned back to look at Dean. "Liam and I are leaving..see you later Dean!" You snickered as you grabbed Liam by the bicep and led him out of the bar, leaving a very angry Dean behind.

Truthfully, you didn't know why Dean was so pissed. He had that woman he was talking to the whole night, so what crawled up his ass? He obviously was going to be taking her home and wouldn't show up until the next morning. Talking to Sam about if she was good in bed or not in the Impala always pissed you off. It was like he was trying to get a rise out of you. Every time he would go on about his sexcapades you'd always quickly reach for your bag and pop your earbuds in, blasting music to drown out the information Dean was spilling.

It hurt more than anything to watch Dean come back to the motel the next morning looking all disheveled. He'd always have hickeys littering his neck and maybe a few lipstick stains here and there. You wanted nothing more than to be the cause of those marks on his skin but he would only ever see you as his best friend...

Which now leads to why you were on the outside of the bar, caged in between Liam's arms, pinned against the brick wall of the bar, making out with a guy you barely knew. Just as the kiss started heating up again, Liam yelped as someone grabbed the back of his jacket and threw him onto the hard ground a few feet away.

Shock initially spread across your face as you ripped your gaze away from Liam to the culprit, a very angry looking Dean. The sight before you sent a chill down your spine as you noted the vein that always popped out of Dean's forehead prominent, indicating he was absolutely livid. Large calloused hands were in fists by his sides and the look on Dean's face caused y/n to shift a little under his gaze.

"What the hell Dean?" Y/n angrily shouted at her best friend. "What is your fucking problem?" Y/n stepped forward and shoved Dean's chest but it was like pushing a brick wall, he didn't move an inch.

Dean stayed dead silent before gripping y/n's upper arm tightly and dragging her with him. Y/n's feet tried to gain traction to stop Dean from dragging her away from her fun for the night but to no avail. Finally reaching the impala parked on the opposite side of the parking lot, y/n groaned as she knew Dean was taking her back to the motel and ruining her fun.

Letting go of her arm to open the passenger side door for her, Dean ushered her in but y/n stood off to the side with her arms crossed over her chest, angry.

"Get in." Dean nodded towards the impala, still fuming.

"No." Y/n keep her chin up

"Y/n get in the damn car before I lose my shit." Dean grit his teeth, bringing his hand up to pinch the bridge of his nose in frustration.

"Where's Sammy?"

"He got another ride home." Dean answered flatly, "now get in."

Dumbfounded, y/n's jaw fell open. "You have got to be kidding me!" The girl's hand flew up, "Sam even gets to have fun tonight but I don't? Seriously, Dean?"

"We'll talk about this later y/n." Dean pressed his lips together, nodding towards the car again. "Get in."

Realizing you weren't going to win this one, you let out an exasperated sigh before sliding past Dean and plopping down into the passenger seat. Dean closed the door behind you and once again pinched the bridge of his nose in frustration. After calming himself down a bit, Dean finally rounded baby and hopped into the driver's seat, ignoring y/n's piercing gaze burning a hole through his head.

Pulling out of the parking lot with his grip on the steering wheel tight, Dean sighed before finally glancing over to y/n.

"I am your best friend, Dean. Not your freaking little sister. I am so tired of you and Sam being able to go home with whoever you want, whenever you want. I have needs too you know? What... you get to get your dick wet every freaking week but I can't get some dick once in a freaking blue moon?!" Y/n's face turned red as she ranted, "It's exhausting honestly. You're such a—"Y/n quickly stopped mid sentence as Dean roughly pulled baby over to the side of the road, making the tires squeal from the sudden motion.

Y/n quietly gasped as Dean quickly got out of the car and walked around to her side. Noting the lack of any structures or anything around them y/n's heart skipped a beat as she realized they were in the middle of no where.

Yanking the door to her side open, Dean nodded for y/n to get out of the car. "Out."

"Wha..Dean were in the middle of no where!" Y/n tried as she pushed herself out of the vehicle only to be pinned to the side of the impala as soon as she stepped out.

"De-"

"You really think I think of you as my little sister?" Dean's tone dropped, causing y/n to swallow a thick lump in her throat as dark green eyes stared back at her with something she couldn't quite grasp. Her heart sunk a little at Dean's words, y/n's mind reeled as she thought he meant he didn't care about her as much as she thought he did. What else could he be saying? He couldn't think of her like she thought of him, right?

"I guess I—no?" Y/n had absolutely no clue what to say, completely lost.

"Do you wanna know why I'm always with someone?" Dean's questions, his eyebrow raising. "Hmm?"

Y/n takes in a shaky breath as she glances up from Dean's eyes to his pink lips held between his teeth, not realizing Dean had caught her staring. Leaning in a little closer and making y/n's gaze snap back up to his dark gaze, Dean whispers "it's cause I'm trying to get you out of my head. You're every thought that goes through my mind, y/n. I can't even wake up without you being the first thought in my head and the last when I fall asleep. But I know you're off limits.." y/n watches as Dean's gaze falls to her lips, noticing the way his once green eyes are almost black.

Swallowing another lump in her throat as her own eyes softened at Dean looking at her in a way she'd never seen before and only imagined in her dreams, y/n's voice came out shaky. "Why am I off limits?"

Dean sighed before licking his bottom lip, "because you're my best friend and you deserve better than me." His voice softened as he spoke the last few words.

"Dean...." Y/n softly shook her head, "what are you talking about? I don't deserve you? Are you even listening to yourself? You are the most kind hearted, brave, funny, charming, and most lovable person I know." Y/n'a gaze reconnected with Dean's soft but dark gaze, just now realizing exactly what that look meant. "It's why I fell in love with you." Y/n whispered, praying she hadn't just ruined everything between them.

Dean froze at y/n's words, never in his life had he expected to hear that come out of her mouth. "You love me?" Dean's voice sounded scratchy and low, causing panic to rise through y/n's chest.

Knowing this could either be the end of their relationship or beginning of something new and beautiful y/n lifted her head. "I love you, Dean. Look I get if you don't feel the sam-" y/n's suddenly interrupted by Dean's lips on hers.

Completely caught off guard, y/n's frozen for a second before she melts into the kiss. Electricity shoots through their bodies as the kiss starts out slow and sensual. Dean's hands find their way to the base of y/n's throat to pull her closer, earning a soft moan to escape from her lips. A groan of satisfaction vibrates Dean's chest at the noise he caused her to make. Breaking away from the kiss Dean cups both sides of y/n's face and smiles softly before whispering "I love you too."

Upon hearing Dean's confession, y/n's heart swells as a fire starts in her chest, lighting something deep within her she never knew existed. Before either one of them could say another word, y/n quickly sprang forward and closed the small gap between the two, smashing her lips roughly onto Dean's. The girl's arms snaked up his chest to wrap around his neck, ultimately pulling him closer towards her as Dean tightly grasped y/n's hips bringing her closer towards him so he could slide his knee in between her legs.

Y/n's fingers thread through Dean's short hair as heat pools within her core. Each kiss shared between the two becomes more and more desperate and hungry as their lips smack together. Dean's tongue darts out and slides along y/n's bottom lip asking for entry, granting him access y/n sighs as Dean finds his way through her mouth. Another moan escapes from y/n's mouth as Dean puts more pressure on her core with his knee, letting her rock her hips on him.

Knowing this is going exactly where he is thinking Dean quickly breaks away from y/n's lips, not missing the way she almost pouted and whined at the loss. Yanking the back passenger side door open, Dean grabs y/n by her waist and pulls her to the back of the impala. Watching as she crawls backwards to lay down Dean quickly sheds his tshirt and jacket before closing the door behind him.

Immediately dipping to plant sloppy kisses to y/n's neck Dean groans as y/n palms the bulge in his jeans. "God I've wanted this for so long. I've only dreamed about the sounds you can make and the way you taste."

Y/n sighed into the kiss as Dean reconnected his lips onto hers. "Dean I need you." Y/n whines, between breaths.

"Sorry sweetheart but we're takin this time slow." Dean managed to get out in between kisses, bringing his hand down to the hem of y/n's shirt and pulling it over her head. "I want to kiss every inch of your body, taste how sweet you are, and then watch you come again on my dick."

As soon as Dean's eyes met the sight of her breasts plump and deliciously pushed up by the way her bra was holding her, Dean could only imagine how perfect they looked without the bra and urgently needed to get  his hands on them.

Just the way Dean was talking dirty to her sent butterflies tickling the insides of y/n's stomach. She knew Dean was a flirt and figured he'd be sexy in bed but never thought he had such a dirty mouth. But two can play that game and y/n could make him beg for her instead.

"Maybe you should use that dirty little mouth of yours to-" Dean quickly stopped y/n with his lips, taking the time she's distracted to reach one hand behind her back and unclasp her bra in one swift motion. Shock quickly flashed through y/n's eyes before Dean ripped the bra off. As if his eyes couldn't possibly darken, Dean's emerald green eyes shifted to black. His pupils completely overwhelming the color y/n so dearly loves.

Dean instantly groans at the sight of y/n's breasts, immediately connecting his lips to a nipple as his large hands start to knead through the plush and soft skin. "Oh sweetheart...." Dean pauses between licking and sucking, "I really didn't think you'd be even more beautiful than you already are. God you are so gorgeous. S'all mine."

"All yours, D." Y/n moaned as Dean had somehow slipped a hand into her jeans and started rubbing circles over the sensitive bundle of nerves. Usually she wasn't this sensitive or turned on. Absolutely nobody had the same effect of her as Dean. Y/n has to bite down on her lip to hold back the moans of pleasure but Dean notices. "Don't hold back baby, I wanna hear you."

Pulling her panties to the side, Dean slips a digit into her slick and wet core, eliciting a loud moan to escape from y/n's throat. Truly, she had no idea she could even make such pornographic noises before this. Rocking her hips down on his hand as Dean kisses his way back up to her lips, y/n whines as he slowly slips another finger into her core, loving nothing more than the feeling of Dean's fingers hitting her G-spot.

Grinning at the sounds she is making and almost coming apart from underneath him, Dean's raspy voice speaks up again. "Come for me on my fingers and then I want you to come around my cock." He quickly reconnects their lips just as y/n feels that burning sensation growing inside her core, focusing on the way his fingers glide in and out of her pussy so roughly.

"De-aan." Is all y/n manages to get out before completely coming undone underneath the man she loves. Y/n's stomach coils as her stomach tightens, moaning Dean's name over and over as he rides her through her high.

"God you're even more beautiful coming around my fingers baby." Dean whispers in her ear as she slowly comes down from her high.

Slowly as y/n came back to the present, she quickly fiddles with Dean's belt attempting to take it off. "Hurry up Dean I need you now." Y/n says, causing Dean to laugh a bit as he helps her get his jeans off. Leaving him in just his boxers, y/n slowly slips her hand into the tight fabric and grabs him, slowly and softly stoking him. "I want you to come inside me D, I don't want you to hold back. I'm on the pill so we're okay."

Dean only nods before ripping his boxers off, letting his dick spring free. Y/n's eyes widen at the size of him, wanting nothing more than him inside her watering mouth. Slowly leaning down to tease him, y/n licks a stripe up his shaft all while keeping her eyes locked on his.

"Oh yeah. I'm marrying you." Dean cocks his head to the side before pushing y/n back to lay down and ripping her jeans and panties off so she is completely bare along with him. "You're all mine baby." Dean lines himself up with y/n's entrance before slowly pushing himself inside. "God you're so wet and s'tight for me." Dean groans as he bottoms out, finally connecting his gaze to y/n who is biting her bottom lip to keep from crying out.

Y/n's eyes quickly roll into the back of her head as Dean pulls out and slams back into her again, eliciting a loud moan. "Yes!" Y/n moans, "more Dean, give it to me."

Dean quickly sets the pace and slams in and out of y/n whist she screams his name. Dean curses in between thrusts and groans each time y/n's hips roll up to meet his. "I'm not going to last much longer." Dean admits

"Me either." Y/n manages to get out between moans, "come with me."

A growl rumbles through Dean's chest, loving the way her mouth is so dirty for only him, "Such a good girl, y/n. Now come all my cock while I fill you up."

Just as Dean's words filled y/n's ear a loud moan ripped through the impala as y/n came hard, repeating his name over and over again like a prayer. The feeling of her pulsing around him sends Dean to fall out of rhythm as he sloppily snaps his hips against hers. His face buries into her neck as he feels himself unravel inside of her, the feeling of warm liquid filling her insides as the two turn into a moaning mess, painting her inner walls white.

Sweat rolls down both of the hunter's foreheads as they lay there for a second, catching their breath.

"Holy shit." Y/n laid beneath a panting Dean, still attempting to catch his breath.

"Didn't take you for the dirty type.." Dean finally admits, absolutely loving it. "But I love you and that dirty little mouth of yours."

Y/n laughed a bit before connecting her gaze to Dean's. "Trust me that was very mild of me. Just wait. I didnt want to scare you."

"I'm here for it sweetheart. Don't worry. Next time don't hold anything back."

"Oh I won't." Y/n softly smiled before cupping the sides of Dean's face to bring him into a loving kiss. "I love you."

"I love you too, baby." Dean whispers, a grin plastered over his face before he looks down between the both of them. "Wanna go another round?" He asks, cocking his head to the side.

"Hell yeah I do. Get over here Winchester." Y/n giggles as Dean leans down to smash his lips onto hers, still not over the feeling. Truthfully, he doesn't think he will ever get used to the feeling of her soft and plump lips on his but at least she's his now.

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