Synopsis- You always knew when you weren’t wanted. And the way things are going in your marriage with Jungkook, a divorce is looking more and more likely. While he’s getting closer to a woman at work that you’re certain he’s having an affair with, you’re planning your escape with your four-year-old son. However, five years of marriage did not expose you to a certain side of your husband. A side of Jungkook that only gets triggered when you try to leave and break apart your perfect ‘family’.
Warnings- Yandere behavior, graphic language, violence/murder, women bashing on other women, heavily implied infidelity, bad parenting, absent father, broken family vibes, very slow buildup bc Jungkook doesn’t really snap until you leave him so just give him a min lol, inexperienced author writing for a four-year-old (I never wrote for a kid before pls gimme a break), also I chose my future son’s name for this fic but pls feel free to name him whatever you want :)
Slow burn Yandere Husband Jungkook
Word Count; 5.4k
Unlike the vast majority of married couples, neither you nor Jungkook donned wedding rings.
I mean this in the best way possible, but it was so hard to get through the prologue of unsaid vow. I was just immediately hit with this awful feeling in my stomach because of how oc was being treated at the office party. I made sure to sign up for your Patreon right away bc I absolutely needed to know how this story goes. I feel like with any yandere fics that I’ve read the murderous devotion is immediately known and just there; but with this prologue I already don’t trust myself on what to think about anyone’s behavior besides oc because, of course, that’s exactly how I would react; her place and relationship with jungkook feels so unofficial despite being married to him and having a child with him… I still have to read the first chapter on patreon, and while I’m so excited to do that I’m so nervous because I just know the gaslighting and uncertainty is going to be so crazy 🥲
𝐝𝐞𝐟𝐢𝐧𝐢𝐭𝐞𝐥𝐲 𝐨𝐯𝐞𝐫 | boyfriend's dad!cillian murphy x reader
𝐬𝐮𝐦𝐦𝐚𝐫𝐲 | for some reason, your first instinct after the breakup was to talk to his parents; maybe because you'd come sort of uniquely close to them, for a relatively short relationship. you might not have gone to their house if you'd known you'd find mr. murphy there alone...
𝐰𝐨𝐫𝐝 𝐜𝐨𝐮𝐧𝐭 | 4k
𝐰𝐚𝐫𝐧𝐢𝐧𝐠𝐬 | SMUT (18+ ONLY!! unprotected sex, creampie, oral m and f receiving), age gap (reader's age unspecified, cillian is 45+), hurt/comfort (but, you know, sexual comfort), infidelity, slight manipulation/coercion since the reader is very vulnerable at the time, somewhat inexperienced reader, degradation and praise, a little bit of breathplay, hair pulling, slight dacryphilia?, reader is slightly implied to be an immigrant/foreigner
note: yes I use his real name but this is just fiction and not meant to have anything to do with the real cillian murphy or his life/family so please keep that in mind!
He had a smile on his face as he opened the door and greeted you, but it fell instantly when he saw you biting down on your quivering lip, looking down to hide how red and watery your eyes were.
"What's wrong, sweetheart?" he asked, voice heavy with concern as he reached out and rubbed your shoulder. "Oh, god— come in, come in— what's going on?"
He ushered you into the house, shutting the door behind you and wrapping his arm around you as you sniffled. "I-I'm sorry—" you began instantly. “I thought— I don’t know why I even came here…”
But, actually, you sort of did. You’d been wanting to talk to Cillian’s wife, hoping for some motherly advice, until he answered the door and you abruptly remembered she was in England on business for a week or something. And you couldn’t exactly show up on somebody’s doorstep crying and say ‘oh, sorry, I thought your wife would be home— I’ll come back in a few days’.
You weren’t disappointed by running into him instead, really, you just felt a little weirder about it. The two of you had never actually been alone before.
"Don't apologise," he soothed, "it's okay, just tell me what's happened. Are you alright?"
"Yeah," you sighed, trying to compose yourself a bit as he guided you to sit on the couch with him. "Yeah, I'm okay, I just... um, well, it's sort of stupid—"
"I'm sure it's not," he offered with a small laugh, "if it's got you this worked up."
"We, um... I think we broke up?"
"What?" he breathed, knitting his eyebrows together— he cared more than you expected... but it sort of made sense, Mr. Murphy had always made you feel welcome here. Mrs. Murphy too, maybe ina different way. Yes, it's bizarre to respond to being dumped by going to visit the guy's parents, you needed a sort of... mature, familial presence right now while you were so far from your own.
You took him through the whole drama as efficiently as possible, trying to regulate your crying so he could actually attempt to make out what you were saying. He listened thoughtfully, perhaps with too much attention compared to what you expected— after all, this was stupid college drama and he was so much more mature than all that. Still, you appreciated a listening ear and a shoulder to cry on.
"And, uh, that's how he ended it," you finished with a sigh, sniffling as you recalled the heartbreaking conversation. "He basically told me that he's too young to be stuck with one person, and he needs to 'explore his options'..."
"Then he's an idiot," Cillian groaned, "and I hate to say that about my own son— but he's a fuckin' idiot."
"Well," you mumbled, "I don't know— I thought maybe he had a point. I mean, we're pretty young..."
"But look at you, honey," he offered pityingly, "you can't tell me this is what you wanted."
"No, but—"
"And yes, you're young," he added, "but not too young— not if it's real."
You bit your lip to stop it from shaking any more, and he cooed at you gently as he reached up to rub your shoulder.
“Poor girl,” he breathed. “Honestly, I always… well, maybe I shouldn’t say it now…”
You looked up at him expectantly, and he smiled nervously as he glanced away.
“Well… I guess I always thought that you could do better,” he admitted with a soft laugh, “but, you know, I didn’t want to say anything, of course. He was lucky to have you, and I just hoped he would treat you right, but…”
“I thought I was the lucky one,” you replied with a thin smile and another little sniffle. “He could be really sweet, you know— he used to be. And I always thought he was, uh, sort of… you know, out of my league.”
“Oh, honey, no,” Cillian frowned, moving his hand up to your face and holding your cheek, wiping a small tear away with his thumb. “You’re gorgeous.”
You laughed awkwardly, not sure what to think— or how to think— with him looking at you like that. “I… I don’t know, you’re sweet, but—”
“No, really,” he assured, and only when you met his gaze did you realise how close he was. You wouldn’t call it too close, only because it didn’t bother you like you knew it should. “You’re so beautiful.”
You opened your mouth to say something, but nothing actually came out… there was nothing to say. He was coming closer, you knew it, and you wanted to reach up to stop him just as much as you wanted to shut your eyes and give into it. You ended up sort of splitting the difference: you rested your hands on his shoulders, but didn’t push him away, and gasped slightly just before he kissed you. Even a second of resistance could’ve given you some plausible deniability, but no, you fluttered your eyes shut and kissed him back; it didn’t help that you could feel how warm and strong he was through the t-shirt, holding on tighter to his shoulders with a hum.
His hands wandered to your waist, pulling you into him— and you were like putty, embarrassingly enough. With him kissing you like that, you really couldn’t do anything but let him pull you around wherever he wanted. His lips were soft and gentle, his tongue teased you so carefully, and he even sighed against your skin in the sweetest way… you were totally helpless already.
Sure, some part of you knew how fucking bizarre this was— that you were kissing Mr. Murphy, your boyfriend’s dad— well… ex-boyfriend’s. You weren’t blind, you noticed how attractive he was when you met him, but you’d managed to successfully ignore it since then. It made sense, after all, since the first thing you’d noticed about your boyfriend was his good looks… but Mr. Murphy was handsome in a totally different way. Strong and broad— not especially massive or anything, still a lean guy— with thin streaks of grey in his hair, a patient sort of smile, subtle wrinkles around his eyes that added a sense of wisdom to his expression… really, he was a bit more of your type. But that was something you had forced yourself not to acknowledge— until now.
You sat up slightly, holding onto his neck, breathing in sharply through your nose as you kissed him back a little harder. You could feel him smiling— god, even just that made you feel so desperate— and he even moaned ever-so-quietly when you ran your fingers through his hair.
“Oh, sweetheart,” he breathed against your lips, breaking away just enough to make you open your eyes— his lashes seemed especially long as he looked down at your legs curled up on the couch (and his hands petting them slowly. “You haven’t been treated properly for a long time, have you?”
You whined in the back of your throat involuntarily as you nodded— how could he see right through you like that? It wasn’t like it was bad with your ex, it was just… not good. Not enough. You wanted to feel wanted, not used— not a means to an end.
“Will you let me?” he asked softly, breathing beside your ear on his way in to kiss your neck. You gasped, wrapping your arms around his shoulders to keep him close, head falling back to give him as much of you as he wanted. His tongue was fucking fiendish, the way he used it to tickle along your pulse, the sharpness of his teeth making you jolt only for him to soothe you with his plush lips.
“Yes,” you panted, “fuck— I, god, I can’t believe we’re doing this…”
He laughed a little. “I can,” he admitted. “All I could fucking think about since I met you…”
That surprised you— you’d never noticed anything that would’ve made you think he thought of you that way… but knowing that he, apparently, had made a shiver run up your spine.
He certainly hid it well, playing the part of the slightly-embarrassing dad and polite husband so well that you never would’ve known… oh god, his wife. You didn’t want to think of her now, yet the unavoidable memory stirred arousal alongside guilt in your gut. You had no idea you were this sort of person— but you weren’t really operating logically right now, anyway.
He held your face again as he pulled back, petting your cheek— it made you feel especially juvenile when he did that, holding your chin to examine you. This wasn’t really the ideal state for you to be looked at, in your opinion, with you having been crying all evening. But he looked amazed by you, even if it was just for a moment before he looked down at your body and smirked.
“Take this off,” he instructed, tugging at your shirt slightly. You thought it would’ve been a little more romantic if he helped you out of it, but it was alternatively a bit sexier that he was just going to sit back and watch you strip for him. It must have been his way of demonstrating his power over you, that you were just going to take it off and toss it aside without question. Which, of course, you did.
He smiled proudly at the sight, and before you could even get your bra off, he started to carefully tease you through it— fingers running around the edge, moving the straps off your shoulders, tickling up your sides as you shifted nervously on the couch.
“Look’t that,” he whispered proudly, and you took a second to realise that he was referring to your nipples getting hard enough to poke visibly through the fabric; you felt self-conscious all of a sudden, even if he was clearly enjoying what he was seeing. “So needy, huh?”
“Y-yeah,” you admitted, whining when he reached inside the cups and ran his fingers over your breasts— they usually weren’t so sensitive. “Fuck,” you breathed, shutting your eyes as a way to try to escape his gaze. “I… I need you.”
“Fuck, baby, don’t talk like that,” he groaned, “m’gonna try to take my time with you— how am I supposed to do that if you say such lovely things?”
His lips were on your neck again— and he was leaning you back, laying you down under him, tugging your shorts down with a bit more urgency than he’d had before.
When you were basically naked— or at least, your bra and panties pushed out of the way enough that he could see what he needed to— he purred at the sight, grinning as you hastily undressed yourself the rest of the way.
"Of course he couldn't appreciate this," Cillian sighed, baring his teeth just a bit. "Of course he couldn't appreciate a perfect fucking body like this— a perfect little pussy like this..."
You were about to open your mouth to say something, though you hadn't even decided yet what it would be, but only a low moan came out when he held your legs open and dove between them, humming as he lapped at your clit. You couldn't imagine why you were so sensitive, but your whole body was shaking already just from the gentlest motions of his tongue...
"Fuck," he said, muffled against your skin, before he pulled back enough to bite playfully on your thigh. "Fuck, darling, you taste delicious. Christ. You're too perfect..."
He devoured you again, exploring all over you with his tongue as your thighs kept instinctively clamping down on his head. He kept looking up at you through it all, even when you couldn't stand to meet his gaze and had to arch your back from the pleasure. "Fuck!" you yelped, grabbing tightly onto his hair. "Fuck, Mr. Murphy, I— oh, god..."
"He never made you come like this, did he?" Cillian realised with a groan, nearly growling when you shook your head. "Has anyone?"
"N-no," you shakily admitted, and he moaned around you as he suckled harder on your clit for a moment until you whined loudly.
"Oh, poor thing," he cooed, "how could anyone taste this sweet cunt of yours, and not want to spend hours between your legs?"
He didn’t need to spend hours, though— the taboo nature of the situation seemed to turn your body into overdrive, making you so sensitive and desperate… or maybe that was just the effect he had on you, but it was hard to say.
The point is, all too soon, you were shivering under him, back arching up off the couch, holding on tightly to his hair. He hummed approvingly, even moaning against you as he slid his tongue inside; he must have been able to feel you pulsing, moving closer and closer to the edge, because he shut his eyes tight and seemed to focus harder and pushing you further until you couldn’t take anymore.
“Fuck, fuck!” you sobbed, thighs shaking around his head; there really was no exploration to it, no teasing, he just went right in and expertly played you like he’d done this a thousand times. Maybe he had… but, obviously, he’d never done it to you. Were you that easy to solve?
Obviously, that question suddenly became the last thing on your mind as your orgasm wracked through you. He growled encouragingly, still keeping his pace, but you could barely hear it past the ringing in your ears— and your own cries of his name, of course.
He only broke away when your squirms turned into real avoidance: you could only take so much, especially with him suckling on your clit like that.
You were almost nervous to open your eyes again— and you were right, he looked so gorgeous between your legs, obviously smug with having just made you come, it was nearly criminal.
“Is it really that easy to make you come, honey?” he laughed, petting your legs sweetly as he pulled back, looking up at you with a proud grin. “That’s so fucking cute, baby…”
As he sat up again, wiping the slick off his mouth with the back of his hand, you got this weird, clingy feeling— wanting to chase him even just as he barely moved away.
But he’d sat up for a reason, and you started to realise it when you sat up, too, and noticed the thick bulge in his jeans.
"Why don't you show me what you can do, sweetheart?" he encouraged with a smile, opening his belt for you. "I'm sure you've learned a thing or two..."
Though you still felt terribly nervous about it, you leaned forward towards his lap. Would it be awful to admit your mouth watered when he freed his cock from his jeans and boxers, holding it out for you as a little bead of precum formed at the tip?
"Show me, baby," he whispered again, "and look up at me."
You nervously blinked up at him, meeting his gaze from his lap, as you wrapped your lips around his swollen head. He bit his lip right away and reached up to hold onto your hair, groaning as you swirled your tongue.
"Fuck," he smirked, "you're sort of a tease, aren't you?"
You weren't trying to be, really, but it didn't sound like he minded too much...
"Oh, fuck," he moaned deeply, making you pulse inside as he tilted his head back. "Fuck, baby, that's good— your mouth is so fucking warm..."
He gasped and panted as he held your head, guiding it to bob just a little faster than you had been moving. "Sweetheart," he choked, "you're so fucking good... fuck!"
The praise made your chest fill with warmth, even if there was still some part of your brain that was recovered enough from the orgasm to remember how horrible this all was. It was horrible, but perfect— and feeling his cock throb against your tongue was perfect, too.
You’d never been told you were so good at this before, but he kept moaning and petting your head encouragingly, whispering the most wonderful and filthy things. “Just like that, honey,” he cooed, “mm— pretty thing… knew that mouth of yours would feel so fuckin’ good… just keep sucking my cock, sweetheart.”
That you did— harder and faster, stroking what your mouth couldn’t fit, moaning softly around him. As you tried to take it deeper, desperate to please him, you gagged on his thick head.
“God, it’s so cute when you choke on it, baby,” he chuckled. “Do it again.”
This time it was almost too much, but he held your head down and groaned deeply. It would’ve bothered you more— not being able to breathe— if he didn’t sound so sexy right then…
Thankfully, he pulled you off just in time, making you yelp as he held you by your hair— only to kiss you hard, letting you taste yourself on his tongue. Moaning, you melted into his arms, and let him guide you to straddle his lap. Feeling his jeans against your thighs and his shirt against your chest made your heart skip.
He took another long look at you when he broke away, a new darkness in his bright eyes.
“You’re so sexy,” he laughed softly, running his hands over your nude form and raising a brow as he watched goosebumps break out over your skin. “God, I need to be inside you…”
You bit down on your lip but it didn’t do much to suppress your whimper; lifting yourself up a bit, you grasped his cock and slid it through your folds, guiding him to your entrance.
You both gasped when he slipped inside, even when it was the slightest penetration— his whole head wasn’t in yet, and you just knew it would stretch you more than you were used to.
Lowering yourself, you took in a shaky breath, whining slightly as he opened you up
His fingers seemed to dig deeper into the skin at your hips and ass with every inch lower that you sank onto him.
“Oh, fuck,” he moaned loudly, tilting his head back, “you’re so wet, sweetheart…”
You could barely believe that you took it all; that you relaxed into his lap fully even when you feared being split in half by how thick he was. “Oh my god,” you blurted out, operating on instinct as you started to move— grinding back and forth, desperate for friction despite having been satisfied by his incredible mouth just a few minutes ago.
"Fuck, there you go," he encouraged with a growl, looking down at your hips rocking in his lap. "Ride me, just like that— fuck, ride my cock, little fuckin' whore..."
You whimpered at the insult, holding tighter onto his shoulders, but it only made you move faster. "S-so... so deep, Mr. Murphy," you whimpered.
"Yeah? You can take it," he promised darkly, holding tighter onto your waist as he dropped his head back with a low groan. "God, you're tight— fuck."
You gasped as he bucked his hips up, creating more pressure against your over-sensitive clit. "Oh, fuck," you breathed, struggling to cope with all the sensations he was giving you.
Both of you settled on the right pace, and he switched between resting his head back against the couch (giving you a nice view of his gorgeous neck, how could just a neck be so sexy?!) and looking down to watch you go. “So fuckin’ cute,” he praised— though you were sort of surprised to hear him describe you that way at a time like this. “So needy, honey… you want more, don’t you? You wanna go even faster.”
Now that he said it: yeah, you did. You bounced up and down, your moans coming out all shaky and uneven because of the movement, and he grinned proudly.
His hands wandered up from your waist to your chest, groping you eagerly as you gasped out his name in response. “Love these tits of yours,” he informed you, sounding oddly sweet for how dirty of a compliment it was. “Took everything in me not to stare at them when you’d come over for dinner… see what you do to me, sweetheart? Haven’t felt this desperate since I was your age.”
Oh, he knew exactly what he was doing, reminding you of how much older he was at a time like this. He purred when he felt you clench on him, obviously affected by the comment.
“Should’ve known you’d give in right away,” he went on, softening his voice to nearly a whisper as he watched you move with heavy eyes; you angled your hips back and moaned louder, his cock rubbing against just the right spot every time now. “Hungry little thing like you— now I wish I hadn’t waited so long. We could’ve been doing this the whole time… I could’ve shown you how much better it can be, when somebody really takes care of you.”
Whimpering, you felt another heady pang inside you— if he kept talking like that, you wouldn’t be able to keep your head on straight… then again, the fact that you were here proved that you were less stable than you thought.
“Faster, sweetheart,” he ordered again suddenly. “I wanna see how desperate you can get.”
You furrowed your brows together, almost pouting, but did exactly what he wanted— you wondered if you looked as pathetic as you sounded, riding him recklessly, chasing another peak even when it took all of your strength in those shaking legs.
He grabbed you by the jaw and guided you into another desperate kiss— all teeth and tongue and low moans. “Good fucking girl,” he snarled. “Good little slut.”
“Fuck,” you panted, moving faster. “Fuck, I’m close—”
“I know, honey,” he cooed, nodding as he moved his hand down to your neck. “Show me how bad you need it, sweetheart. Let me see it, I wanna see you come for me.”
Tossing your head back, you cried out his name again— why did you always do that when you came?— and felt it overtake you. It was even heavier than the last one, even more numbing and draining, and you didn’t even notice how hard you were digging your nails into his shoulders.
When your body failed and you came to a shaky stop, he didn’t give you much time to catch your breath: he grabbed you tight, guiding your head to rest on his shoulder, and began to buck his hips up into you quickly.
“Oh my god, oh my god!” you whined, overwhelmed by the feeling, holding onto him tightly just to have something to keep you grounded.
“Fuck, m’gonna come inside you,” he warned with a growl. “Gonna fill you, baby, you’ll be so fuckin’ full of my come—”
You sobbed and buried your face in his neck, starting to cry again for a completely different reason than before.
“Tell me you want it,” he ordered, speaking roughly right against your ear.
“F-fuck, I want it,” you gasped, “I want you to come— fuck— come inside me—”
He choked out a few more swears, he held you tight enough that you started to imagine what his bruises would look like on you tomorrow, and with a low groan of your name, it all suddenly slowed to a stop. You moaned weakly when you felt his cock flexing against your walls, even more heat pooling inside you. With what little energy you had left, you softly kissed his neck— until he seemed to come back to reality and pushed you back enough to be face-to-face with you again.
You realised suddenly that you were still sort of crying from the intensity of it all, and got nervous with him staring at you like that. “I’m sorry,” you sniffled as you wiped your face.
“Don’t apologise,” he told you again, moving your hands away so he could look at you himself. “Besides, you look even cuter when you cry.”
i feel like you’re in my head because I was just thinking about this trope yesterday 🥲 like there is something about the boyfriends dilfy dad that is sooo enticing and just next level. I love your characterizations of dilf cillian they’re always so pervy (compliment) and always so different
by the way this cill is also kinda dark? I think my brain is broken because the absolute contrast between the beginning when his immediate reaction to seeing oc cry is to comfort her, to the end when he’s relishing in her tears; he’s so depraved 🥴 (I need him)… I really look forward to more dilf cill in the future it’s always such a fun read, also I didn’t know just how much I needed boyfriends dad dilf in my life 😭😭😭 tysm for writing this 🤎
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