The reader comes back to the bunker to help Sam with the sanctified blood cure. Dean intercepts her arrival into the bunker and convinces her he’s human. It takes too long to see where his facts don’t add up, but by then it’s too late.
Pairing: Demon Dean x Reader (Y/N)
Warnings: SMUT, name-calling, orgasm denial, gagging and bondage, knife use (not in a fun way; including cutting), leaving the reader for dead, angst (damn, that took a turn), slight dub-con, arguably dark!fic
Word Count: 2500+
Note: Happy Dean-o-ween! I had another Dean fic planned, but it needs more time. In the meantime, here’s something a little darker than what I usually write. Again:
If you have a trigger for cutting, do not read this fic.
Please let me know if you liked it or not with comments, likes, and reblogs. Stay safe this Halloween!

The garage sank into silence as you turned off your engine. It had been a long drive; worth it. Sam had finally found Dean. He called you on his way back to the bunker a few days ago, Dean snarking in the backseat.
Sam tried to talk over him, but you could still hear Dean.
“Did you tell her I said hi? How’s my favorite whore?”
White crested over the tops of your knuckles as you gripped the steering wheel. You’d wanted to be there, but took a bad lead and split up from Sam on the hunt. The hunt? Dean was a demon, but he was still in there, not as a monster. The defense sounded pitiful in your head.
You called from ten minutes out to check in.
“He’s… he’s not doing too well.”
“Tell me.” You stepped harder on the gas. “Sam.”
“He’s got all this human blood in him… says it’s burning. Y/N… this cure might be killing him.”
You swallowed hard. “It’s the last chance we have. No matter what, keep going. I’ll be there soon.”
“This had better work,” you grumbled, stepping out of your car.
“Why don’t you see for yourself?”
You flattened yourself against your car, arm outstretched with your favorite knife to Dean’s throat.
“Easy, sweetheart. It’s me.” His eyes searched yours as he kept his hands in the air. Dark circles hung under his eyes. His voice didn’t sound like it did. But demons were crafty, and it wasn’t like they followed good lifestyle habits.
“Prove it.” Using the blade, you guided Dean back so you could rummage in your bag for the flask of holy water. Dean flinched when the liquid touched his skin, but sighed in relief when it didn’t steam. You saw the pricks in his arms from the blood injections. They looked angry and swollen like they were still fighting. Dean wiped off the excess with his shirt quickly under your scrutiny.
“Convinced?” He kept his hands up as you lowered your blade. A second later he chuckled as you rushed to wrap your arms around his waist. He ran his hand through your hair as you buried your face in his chest.
“Are you really okay?”
“Yeah, sweetheart. I’m okay.”
“Where’s Sam?”
Dean took a second to answer. “He went out to grab us some burgers. I could call him so he’ll grab you one too.”
“That’s okay. I ate on the way in.” You pulled back. “He left you alone?”
“I’m supposed to be resting, instead I’ve been testing. I’ve still got some perks. Seems the Mark doesn’t want to let go of some things.”
“Like what?”
Dean’s eyes glittered. “Can’t tell you. Have to show you.” His head tilted to one side as he watched you consider his proposition. When you took too long to answer he grinned and snapped his fingers. You found yourself sandwiched between him and the wall on the other side of the garage. “Like this for one thing. Cool, right?”
You giggled. “It will certainly come in handy later.”
“Hopefully sooner than later.” He kissed your forehead. “I’ve missed you so much.” He ran the tip of his nose down the curves of your face. Dean’s lips hovered over yours. You knew he wouldn’t initiate. He needed to know you wanted him. Needed him as much as he needed you.
You bobbed on your tiptoes to press your lips against his. He was tentative at first, barely parting his lips. But you ran your tongue over his bottom lip, drawing a groan from him. His hands began to roam your body hungrily. He gripped your hips and your arms and then your breasts like he was relearning your form. You let out a shuddered breath as he let one slip under your shirt to snake up and play with your aroused nipples. The other hand played with the waistband of your jeans. He popped the button and inched his fingers into your heat.
“Damn, Y/N. Did you miss me?” He chuckled when you could only gasp in reply. He dipped a finger into your slick and spread it up to your clit. Your hips jerked forward under his ministrations. You continued to buck onto his hand and scissoring fingers until your breaths were coming out in bursts. He kissed you hard and thrusts his tongue out of time with his hand untill you were crying into his mouth.
Dean rested his head on the wall over your shoulder. “Let’s go somewhere more comfortable.”
“Let’s.” You closed your eyes against the dizziness as the air chilled and shifted. When you opened your eyes, your back was against the inside of your bedroom door.
And you were naked.
Dean knocked your hands away as you tried to over yourself. “It’s not like I haven’t seen you before, Y/N. It’s just been a while.” You shuddered as the lock clicked shut. “Now let me look at you.”
He stripped off his shirt and sat on the edge of your bed. His eyes eased across your body, resting on your breasts, your hips, your thighs, then flicking up to your face. You were thrumming with need, shivering. Dean curled a finger, summoning you.
“Come here.”
You walked to him on unsteady legs. Dean guided you down to sit on one of his thighs. His jeans scratched pleasantly between your thighs; you couldn’t help but rolling your hips a few times. Dean’s hands flashed to grip your thighs, stilling you.
“Do you trust me?” His deep voice reverberated with need, and something playful. You mirrored him licking his lips and nodded. From his back pocket, he pulled out a bandana. He tied a knot in the middle, then held it questioningly over your lips. You opened your mouth. “I really want to hear you, sweetheart, but I’m supposed to be resting. Don’t want to traumatize Sam.” The bandana slipped coarse over your tongue as Dean tied it around the back of your head. You nodded to let him know it wasn’t too tight.
The bandana did its job as you squealed into it when Dean flipped you under him. He helped you wriggle further up the bed. His head ducked down to kiss across your collarbone, then down between your breasts. One hand massaged one breast while his mouth attended to the other. You arched until your back ached, desperately trying to somehow feel him closer to you. Dean groaned as you dug your nails down his back and down his ribs.
“You keep playing like that, sweetheart, you’re going to get yourself into trouble,” he growled. You hummed back in response and kept your nails moving over his abs. He chuckled. “Just like old times, huh? You still don’t know how to behave.” His green eyes sparkled as you batted your eyelashes. His head twisted to one side as he dipped into thought. “Just like old times…”
Dean moved away from you, ignoring your whine of separation. He kneeled by the bed and shuffled some things around under the frame. His face broke out into a grin when he found what he was looking for. The red silken ropes dangled between his fingers. You bought the set as a joke one year. It made you smile to remember how much Sam blushed and stumbled over his words when Dean pulled the ropes proudly out of the box. Dean’s present came to you later.
“Thinking about Christmas?” He smiled as you nodded. “You were a genius, just in case I never told you.”
“Weher?” you cheekily questioned through the gag. He chuckled and tied one end of each rope to the wrists you held up to him. You looked at him quizzically when he pulled your arms up at an odd angle so he could tie the ropes to the legs of the bed instead of to the headboard. You forgot to worry about it when his fingers danced down your arms to breasts. He played with them again until you were arching into his touch. When his hand drew away you focused on breathing while Dean stripped out of his jeans and briefs. As much as you hated to think it, the demon life had done his body some good. It was thicker in all the right places, healthier, free of the usual Dean Winchester guilt besides the dark circles under his eyes. And his cock was perfect as ever. With a snap, you realized you were staring. Dean smirked as you met his gaze.
“You ready?”
You nodded eagerly. Dean ran his warm hand down your arm to cup your cheek, then down your torso and your thigh. He crawled up the bed between your legs, putting on as much of a show as he was probably getting from your desperate breathing.
Dean smeared his leaking precome over his head and gave his length a few pumps. He leaned up, nearly nose to nose with you, feeling your breath on his face as he teased his head at your entrance.
“I’ve missed you, Y/N.”
He went slow for a while, then with a wink he sheathed himself fully. He waited for you to start breathing again before setting a furious pace. If this had been any other time, you would have thought he was racing some unknown clock. You couldn’t find the mental acuity to care. Your world dilated to the sensation of the rope digging into your wrists. The feeling of Dean’s body sliding against yours while his length slid in and out of you. The lightning coursing through you with each thrust until it felt like your skin was on fire. You closed your eyes to focus on listening to him grunt and growl. You’d never told him, but the sound of him was your favorite part. You could always tell when he was close by the sounds he made. By the sounds he was making right now.
When you opened your eyes, his green irises had been eclipsed by black.
Dean laughed openly as you screamed and writhed beneath him. He stopped his thrusts as you struggled to move away from him, an impossible venture.
“It was all worth it to see your face. I wondered what would give me away. Not the gag. Not the ropes. You are incredibly trusting, Y/N.”
Your mind reeled with every moment since you pulled into the garage. How easy you had made it for him. Your mind raced to find a way out, to find some way to call for help. Dean’s eyes made your heart stutter. But the tests?
“I was just as surprised as you when the holy water didn’t steam like usual. Seems there is enough human blood in me to make my blood not boil; was enough to get out of the trap too. Still burned like hell, though. Either way, we would have ended up here. With you about to beg for my cock like the slut you are.” Dean’s thighs flexed as he restrained himself from thrusting into you. Your walls contracted when his cock twitched inside you. “Do you want to come, Y/N? I have all the time in the world to wait for your answer.” You shuddered as he kept his black eyes on you while dragging a finger down your cheek. He reached out to tweak your nipple, chuckling when you squeaked. “I can wait, but I don’t think you can. Come on, one last good fuck, and then you can fight to ‘sanctify’ me. Deal?”
Your chest ached from heaving and gasping for breath. Your skin was slick with sweat. Already you could feel your release dribbling away. If you gave him what he wanted, would it be enough to distract him so you could get away? In tugging on the ropes, you could already feel them loosening like the knot was designed to.
“Het ghe cogh Dmphnn, theeze.”
“What was that?”
With a groan you wiggled your hips, your eyes rolling back in your head with the friction. In your mind you screamed for him to let you come, pleaded, reminding him that he was close too. That he never had been the patient one. Your heart thundered in your chest as Dean’s eyes flicked to green. He leaned down and sucked on your bottom lip under the gag.
You shrieked as Dean pulled almost all the way out and then thrust into you hard. He bit down on your shoulder as his hips continued their former pace. The edges of your vision began to fade out. Your eyes closed and you bit down on the gag, screaming through the waves of release flying through you. Your screaming continued as Dean kept thrusting into you, chasing his own release. When you opened your eyes, his black ones were staring down at you. Your muscles contracted in fear, pulling a shout from Dean as he came. He fell on top of you, crushing you under his weight.
He eventually rolled off you to stand next to the bed. His fingers glided up your arm toward the rope holding your wrist captive. You held your breath as he fumbled with the threads. Your blood ran cold as you felt the bonds tighten. Dean’s eyes flicked to green to glint at your eyes wide in fear. A blink later he was clothed and looking as fresh as you had seen him in the garage.
And he had your knife.
He pulled the tip up your stomach, just light of breaking your skin but with enough pressure to remind you he could gut you like a fish with a flick of his wrist.
“Sam’s probably figured out I’m not in the operation room by now. He could be roaming the halls right now, looking for me.” The blade circled around your breasts, then continued up across your collarbone and up your arm. “It’s been a while since we last played hide-n-seek, but I’m up for one more game before I kill him too.”
You winced as the knife cut through your skin by the rope.
“I’m a simple man with simple pleasures. Or should I say, a simple demon?” He gave your wrist a rough squeeze, jump starting the draining. He did the same to your other wrist, despite your struggling.
“Dmphnnn!” Your muffled cries made him snicker. He was just closing the door behind him when he turned around and pointed like he had forgotten something. With a snap of his fingers, your clothes appeared on your body. They were warm like Dean had pulled them out of the dryer.
“Can’t having you catch cold. Gotta keep that blood flowing.”
He left you in the dark.
Dean’s head rolled from one side to the other. Sam and Cas were immediately on the defense as his eyes cracked open. He blinked in the light as the darkness faded away.
“You guys seem worried,” he rasped.
Sam shared a glance with Cas, then splashed holy water on Dean’s face. Dean flinched, then looked up at them with clear eyes.
“Welcome back, Dean.” Sam’s voice cracked.
Dean smiled back, then memories came rushing back through the broken damn. “Y/N. Oh, God. Get me out of these! Cas, get to Y/N’s room. Now.” He tore from the chair and ran down the hall.
“What have I done?”
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