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mypoisonedvine · 9 months

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𝐜𝐚𝐥𝐥 𝐦𝐞 𝐂𝐢𝐥𝐥𝐢𝐚𝐧 | dad's best friend!cillian murphy x reader

𝐬𝐮𝐦𝐦𝐚𝐫𝐲 | based on the following request: what would dilf/dad's best friend cillian do if he found your dildo?

𝐰𝐨𝐫𝐝 𝐜𝐨𝐮𝐧𝐭 | 5k (this was literally supposed to be a drabble...)

𝐰𝐚𝐫𝐧𝐢𝐧𝐠𝐬 | smut (18+ only), significant age gap (reader is college-aged, cillian is in his late forties), voyeurism/exhibitionism, semi-public sex, use of toys, praise kink, unprotected sex, very brief/semi sarcastic 'sir' kink, shockingly fluffy??

Not that your parents' anniversary cocktail party wasn't horribly riveting (cue dramatic eyeroll) but you were upstairs, on your bed, on your phone; you'd had enough of 'so how's college going?' and 'what's your major again?' and 'got any boyfriends yet? you must be a heartbreaker' for one evening— or a lifetime, preferably.

It wasn’t even that comfortable to be on the bed in your party dress—a cute, short sparkly one that you’d picked out for tonight—but it was better than standing around and trying to balance in those sky-high heels; those you had kicked off into the corner of the room the second you were alone.

When you heard a small rap on the door, you hummed a quick "Come in!" and didn't even look up from your phone, figuring it was your mom or dad come to find you after you disappeared.

Instead, you heard Mr. Murphy's voice as he leaned in the doorframe; "Sorry to bug you," he said, startling you slightly as you closed Instagram and set your phone down. "Just needed a Tide pen— your mom said you might have one in here?"

"O-oh, yeah," you said, sitting up, "sure— what happened?"

"Salsa fiasco," he joked softly as he shut the door behind him, showing you the dark red stain on his shirt— though the shirt itself was red, so it wasn't too egregious, but still noticeable.

"That's too bad," you chuckled, "I warned them about that salsa— if you serve salsa, there's gonna be a fiasco, that's what I said."

He clicked his tongue disapprovingly. "They should listen to you more," he agreed.

"I've got a couple stain remover pens in that top drawer," you suggested as you pointed to your dresser.

"Great," he smiled, starting to unbutton the shirt; you got nervous for a second until you realized he had on a black undershirt beneath. It's hard to say why you were nervous about that, since you'd seen him shirtless plenty of times in the years you'd known him...

"Nobody's worried about me going missing, right?" you wondered as he continued working on the buttons, and he shook his head while shrugging slightly.

"Not yet," he replied, "but they're going to want to find you soon, you're sort of the star of the night."

You rolled your eyes, frowning. "It's my parents' anniversary party, I think they should be the focus."

"Maybe they should, but you're the much more interesting one," he informed you.

You pulled your legs up a bit, leaning to the side as you sat on your bed; as much as all this attention from your parents' friends was usually annoying to you, something about being interesting to Mr. Murphy didn't bother you so much. "Is it weird for you?" you asked, lowering your voice a bit; he tilted his head quickly as if to ask what you meant. "Going to an anniversary party after, you know—"

The words hung in the air, seeming to gather around his conspicuously naked ring finger: after the divorce. "Oh, no," he scoffed, taking off his cufflinks. "It's fine; but I'm sick of the questions about it."

You winced. "Sorry, I didn't mean to—"

"Don't worry," he laughed finally shirking off the shirt; he looked a little too good in just the short-sleeved undershirt. "You can make it even by letting me ask you how college is going."

"Oh god," you groaned, rolling your eyes, and he laughed.

"If I didn't know from your parents that you were acing it, I'd worry that your aversion to talking about it meant you were struggling somehow."

"It's not that," you assured, "it's the people."

"The people?" he pressed. "Or the guys?"

You laughed nervously, looking down at your lap. "Geez, you learn to mindread while I was gone or something?"

He stepped around your bed to get to the dresser, laying his shirt down over it. "No, I just remember that time— somehow. And I remember how much of a headache I and every other young guy was."

"I guess not much has changed then," you smiled.

"What, I'm still a headache?" he grinned as he looked over his shoulder at you.

"No, I meant—"

"I know what you meant, I'm just teasing," he chuckled. "Top drawer you said?"

"Yeah," you nodded, and he opened the top drawer of the dresser; of course, only right then did you remember that you should have specifically said top left. Because the top right was—

Oh shit.

You swallowed thickly as Cillian stared down into the open drawer, and your heart pounded as you somehow hoped and prayed that what was in there had turned invisible or something; but if the look on his face was anything to go by, it was just as visible as ever.

“I—fuck, sorry, I forgot that’s—” you choked out, face burning impossibly hot. “I never meant for you to see—I’m—could you shut the fucking drawer, please, you pervert?!”

“I’m the pervert?” he laughed thinly, looking at you again finally. “You’re the one with a massive fucking dildo in here.”

“Well—you weren’t supposed to see that—”

“Yeah, but—fuck,” he choked, “I was just looking for your stain remover and I see your— you have a— are you sure that isn’t technically considered a weapon or something? How’s a guy supposed to compete with that?”

“That’s the great thing about it: he doesn’t have to compete,” you explained, “that’s sort of the whole idea.”

He looked back at it for a second and you yelped, reaching your leg off the bed to kick him in the hip. “Would you please shut the drawer?!”

“Sorry, sorry,” he laughed a bit, “but I mean, how am I supposed to react to that?

“Well, you’re not supposed to just stare at it!” you insisted.

He shut the drawer, giving you a look you couldn’t possibly decipher.

“What were you thinking?!” you said, somewhat rhetorically.

“I—well,” he hummed, looking away from you for a second, “I was thinking that I can’t imagine how you can possibly fit something like that.”

You blinked quickly, not sure what to say in response to that. “Well—I mean, it’s a little big, but… it gets the job done. Keeps me from calling the guys I shouldn’t be calling.”

He nodded. “Well, that’s good… none of those college boys could possibly deserve you…”

His eyes were running all over you, and even though you’d picked out this dress just for this party because you loved how you looked in it, you felt a little exposed by his stare.

“I just can’t believe a girl like you—”

“Come on, I’ve never been a saint,” you scoffed, glancing away.

“No, I just mean… the size of that thing…” he trailed off.

“You really can’t get over that part,” you noticed, “is this some kind of… intimidation, Freudian situation?”

You glanced quickly at his pants, and he started to deny it instantly. “No—come on, it’s not—I just can’t believe you take all that. For fun. It looks like it would break you.”

You hadn’t even had any drinks at this anniversary party, and yet you found yourself with this foggy head like you were tipsy; you blurted something out as if you were tipsy. “What, you want me to prove it?”

His chest sunk a bit, and you were about to take it back when he spoke before you. “I’d like to see you try.”

Biting your lip, you sat up on the bed, reaching around him and into the drawer. He didn’t step back or out of the way, just let you grab the toy and lean back on the bed in front of him.

You reached up under your dress, sliding your panties out of the way, finding yourself suddenly plenty wet to fit this toy.

His eyes never left you, though they certainly travelled all over your body as you pressed the toy up to your entrance; it was thick, he wasn’t wrong, and you had to slowly warm yourself up to it whenever you used it on yourself.

After pushing with enough pressure, the tip finally slipped inside and you let out a small sigh. He watched carefully, and your lips fell open into a moan as you pushed the toy deeper into yourself. When the stretch became a bit too sharp, you winced and slowed down, trying to take your time even with your heart racing and hands shaking.

You heard his own breathing picking up, watching you take the toy deeper; you found your gaze wandering over him, even lingering on his groin to see if you could catch a bulge growing there, but nothing was obvious yet. You stared for a moment at his hands, too, suddenly wishing to have them all over you—well, maybe not that suddenly, you’d sort of thought about this before. It wasn’t until somewhat recently that you noticed how sexy he was. Maybe when you were younger, you understood that he was better looking than all the other adults you knew, but only once you left for college did you start thinking about him out of nowhere, imagining what he was really like when he wasn’t just being friendly with you—you even asked your mom once on a phone call if he was dating anyone. Thankfully, she didn’t seem to get suspicious when you asked that; but she’d be more than fucking suspicious if she walked in now, saw you doing this to yourself under his watchful eye.

Oddly enough, the knowledge that someone could walk in and see this just made you even more desperate, and you gasped as you pushed the toy in deeper.

It still wasn’t all the way in, and you already felt so full… truth be told, he had a point about it maybe being too big for you—when you usually used it on yourself, you only put it in a little over halfway, since that was all you really needed. You hadn’t put the whole thing inside since you first got it—and yes, you’d ordered it online, because if you’d seen it in person you probably would’ve been as intimidated by its girth as he was.

Your decision not to wear a bra with this dress became very apparent when his gaze settled on your chest; your nipples were hard, and clearly visible under the fabric now. It was just because it was strapless that you went without, but you were thankful for it when you saw him quickly lick his lips at the sight. You dared to moan just a little louder as you pulled the toy in and out, picking up your pace carefully.

“How’s it feel?” he asked lowly, his eyes drifting back to where the toy slid into you.

“Good,” you mumbled, “really fucking good.”

“Can you really take it all?” he pressed, making your walls clench on the silicone.

Instead of answering aloud, you simply pushed it all the way in until your eyes rolled back—it was so deep, pressing heavy and fat against your deepest points until it felt like you might burst.

“Fuck,” he praised—it was just a swear, but the way he whispered it made it sound like a praise.

You sped up slightly, trying to do this the way you normally would without someone staring at you. But you were even more sensitive with him watching, your walls clenching more and more around the toy until it was almost hard to keep thrusting it in and out. Sighing, you shut your eyes and laid back on the bed to try to help yourself relax. The change in angle just seemed to make the toy go deeper, rubbing harder against the spot inside you that made your back arch.

“You’re so wet,” he breathed; you whimpered, nodding in agreement, and kept moving the dildo as deep as you could get it with every thrust.

Your free arm went back over your head to hold onto the comforter under you, your hand gripping tight for some relief for the pressure inside you. “Fuck yes,” you whispered, knitting your brows together and fucking yourself faster. “Feels so fucking good…”

He hummed a little, but you kept your eyes shut, afraid you’d lose your nerve if you looked at him again. It had been months since you used anything but this, and you had no regrets—the toy performed way better than any of the guys you’d met at college. But, truthfully, you didn’t like having to do this to yourself. It felt like you could never move it fast or hard enough, and you needed to constantly have perfect control over the toy to get yourself to come—and when you come, the last thing you want is to take control, you want to lay back and lose control. Still, it was better than the college fuckboys who smelled like beer and didn’t last more than two minutes.

Thinking about them wasn’t going to help you now, though; it was much better to think about Cillian, about those icy blue eyes running all over your body, about how his hands would hold you down while he claimed you, about how his lips would feel on your neck before he whispered in your ear that you were his…

You let out a sharp and sudden moan as the toy hit harder on that spot; your legs started to shake. “Good girl,” he mumbled, making you moan even louder because god, those words just sounded right in his accent, with that rough voice—and they sounded right being said to you.

“Fuck,” you choked, “Mr. Murphy, I—”

He laughed a little. “So polite,” he cooed. “Open your eyes and look at me.”

Though it made your heart beat even faster, you did as you were told. His stare was all-encompassing, making you feel completely trapped in a way you enjoyed more than you could’ve imagined.

“Call me Cillian,” he insisted.

You weren’t sure if he meant to literally call him that right in that moment, but it sort of came out anyway: “Cillian,” you moaned, and the grip he’d taken on the dresser behind him tightened.

“Can you come for me?” he asked lowly. “Right now? Can you come on that fake cock?”

You bit your lip and nodded, moving the toy faster and faster— more desperate to come than ever. “I—fuck, yeah, I’m close…”

“Good,” he praised again. “Let me see you come, honey.”

Your back arched harder, deeper—your hands were shaking but you kept going, holding on tight to the dildo and forcing it back and forth as your legs began to quiver.

Moans poured from your mouth faster than you could try to quiet them—everyone was downstairs, you just had to hope the music and conversation was enough to drown out your desperate, pleading noises. “Fuckin’ beautiful,” he mumbled, right as you hit the peak and melted into the mattress, a wave of ecstasy pouring over you.

You felt hot everywhere, but especially between your legs—you could swear you felt yourself leaking out around the toy, soaking it, giving away how needy you’d become and not even having the mental energy to feel any shame for it.

Cillian certainly didn’t look like he was trying to shame you for it; when you opened your eyes again, he had a stunned expression—in the best way. “You normally come that fast for a toy?”

You laughed a little, but you still couldn’t quite catch your breath. “No,” you admitted, “it normally takes… a bit longer than that…”

“What was different about tonight?” he mused, and you scoffed and rolled your eyes again.

“Shut up,” you sighed. “Now I have to figure out how to take this thing out—I’m always sore after…”

“If you can handle putting it in, taking it out shouldn’t be much trouble,” he noticed.

Which, yes, that would make sense, but after coming you always got all tight and sensitive and it could be a little intense.

“How about I help you?” he offered, and your chest tightened. He waited for you to nod before carefully wrapping his hand around your own, watching your face as he gently guided you to pull the toy out.

Your lips were slack and your eyes were probably glassy and dazed as he looked at you like that, completely enveloping you in his stare as he studied every detail of your expression. Aside from some heavy breathing you didn’t react much to him sliding the toy out of you, until the ridge of the head reached your entrance and you winced.

“Shh,” he soothed gently, “it’s okay…”

A long sigh of relief emptied your chest when the toy tapered off and you felt the last of it slip out of you; you really noticed then how soaked you were, as a draft in the room seemed to cling to the patch of wetness that had coated all between your legs somehow.

“Lemme see, baby,” he cooed under his breath as he set the toy aside, kneeling down and resting a hand on the inside of your thigh to keep your legs open.

You could barely catch your breath with him doing that; you’d never had someone… look at it like that. You felt incredibly vulnerable but impossibly sexy as you heard him sigh at the sight. “Is it all stretched out now?” you wondered.

“No,” he said, “you look… just as tight as before. Fuck. That’s incredible.”

You bit your lip, sitting up enough to try to get a look at his face past the puffiness of your dress’ skirt, and he smirked up at you with the loveliest sparkle in his eye. “Really?” you breathed, and he nodded.

Even though your hands were still shaking you suddenly felt brave; maybe it was just the afterglow, but you grabbed him by the shirt and sat up to kiss him, colliding your lips with his. He reciprocated instantly, putting his hands on your upper back that the strapless dress left bare.

The kiss was perfect—needy but not too fast, sweet but not too chaste, teasing but not too slow. The guys in college couldn’t even kiss like this… you were wondering why you ever even tried with them—or, you would’ve been if that kiss left you capable of thinking about anything but him. “Need you,” you whispered as you pulled him closer, wrapping your arms around his strong shoulders.

“Fuck,” he mumbled against your lips, a hand holding your waist while he started to kiss your neck and jaw. “Not here—your parents—”

“Don’t care,” you whimpered, “I’m so—fuck, Cillian, please—”

“You already came,” he noticed with a small laugh, “didn’t that take the edge off?”

“Not enough,” you whined, getting impatient and running a hand down over his shirt and down to his pants—and you smiled proudly as you felt the hardening bulge beneath. He choked a little when you touched him there, holding you tighter. “You want me too,” you noticed.

“Of course I do, but—” he breathed, then stopped himself as he tossed you back on the bed; you giggled as he crawled up over you, pinning you down. “But we can’t… your parents would have my head on a platter—once they’re done serving crawfish etouffee off of it downstairs.”

“Well, I wasn’t planning on telling my parents,” you smirked. “Were you?”

“No,” he agreed, kissing your neck again as you hummed happily. “But if they found out—”

“So? They wouldn’t like if they found out about what just happened, either—and they won’t.”

“But this is different,” he insisted.

“How?”

“Because this…”

He trailed off, kissing down your neck and over your shoulder, until a hand reached up to pull your dress down and expose your chest.

“Shit,” he sighed at the sight of it, and you smiled up at him.

“You were saying?” you teased.

“Right, erm,” he swallowed, “this is different because—because if we do this, you’re gonna be my girl. Not just a misguided one-time fuck because you were turned on after screwing yourself with your dildo while I watched.”

You felt a little out of breath but nodded up at him. “Okay,” you agreed.

“Okay?” he repeated, looking a little shocked. “I tell you that you have to be mine and you just say okay?”

“What was I supposed to say, yes sir?” you joked.

“I just mean—shit, if I knew it would be this easy, I would’ve said something sooner,” he chuckled. “But I’m, er, not complaining about the yes sir thing either…”

He sat up and started to unbutton his pants, making you wiggle a bit on the bed impatiently. Even though you’d just gotten filled by your big toy, you felt needier than ever for something inside you—something real.

Your throat caught when he took it out— it was pale and veiny just like the rest of him; long, uncut, a bead of precum starting to leak from the slit… it was beautiful, honestly. The artificial fleshy hue of the silicone could never compete.

“Big enough for you?” he asked with a smirk, but you had to swallow before you answered because your mouth was watering.

“Yeah,” you panted, “plenty.”

He kissed you again, laying more of his weight on top of you; your legs wrapped around his hips, keeping him close as he pressed you down into your bed.

One hand found your wrist and held it back above your head, while the other kept a tight wrap around his cock so he could guide it to your waiting entrance. When he pushed inside, you both sighed with relief like you’d been longing for this for ages—perhaps because both of you had, in your own ways. “Fuck,” you breathed, “Cillian…”

He whispered your name back to you, heavy and desperate and right by your ear, and you absolutely knew you were his, just like he said. He only stilled for a moment when he was all the way inside, already starting to rock back and forth—but he was sort of tender about it, watching you move under him as he fucked you. “So pretty,” he praised quietly, kissing you again, even harder than before. You both moaned into the kiss, and a warm, rough hand settled on your thigh under your dress.

Soon, the pleasure was too much to even focus on kissing, and your mouth just fell wide open in front of his as needy moans passed through it. He stayed close, though, watching your face go slack with ecstasy. The previous orgasm had left you sticky and sensitive inside, still totally dripping for him, everything in you begging for more. “Oh my god,” you sighed, eyes rolling back, your composure completely slipping already. He made you feel so good so easily—and fuck, the way he was looking at you, it was just too much to bear.

“Mm,” he hummed proudly, latching his lips onto your neck again until your fingers tangled in his hair. He moved down and caught a nipple in his mouth, making you whimper as he suckled at it gently.

“Fuck,” you whined, nearly pulling him along by the hair when he moved to the other one; you couldn’t stop clenching inside, squeezing him until he groaned against your skin.

“Won’t last if you keep doing that,” he warned you softly.

“What if I don’t want you to?” you teased, and he growled a little between his teeth, sitting up to look down at you. He fucked you harder, but put a hand on top of your head and pet your hair for a moment, looking at you like you hung the moon; how could he be so dirty then so adorable within the same split-second?!

“I’ll do whatever you want me to,” he decided, speaking softly, “how about that? What do you want me to do?”

That was a little too much power to give you, at least in your opinion, but you grinned as you considered it. “Then I want you to come way too quick,” you decided, “like all those annoying college boys—because you just can’t help yourself.”

He laughed a little, though he stopped to bite his lip as he fucked you even harder—and faster, too. “Okay,” he breathed, “don’t know why you want that, but—fuck— it won’t be very difficult after that little show you gave me. You look so pretty when you come…”

“Just keep going and you can see it again,” you promised, holding onto him tighter as he pressed into you and really let you have it—not really rough or anything, you couldn’t risk making any more noise than you were, but still aggressive and passionate and desperate.

He kissed your neck again, burying his face in your shoulder and finding the spot that made you gasp out his name suddenly; your fingers clutched at fistfuls of his undershirt, and your legs began to shake where they were hooked around his hips and half-pushed-down pants.

“Oh my god,” you gasped, the pleasure hitting you again—but it was better than with the toy, it was stronger, and it just kept going because he kept going. When your head fell back onto the mattress with a sigh, he realized that he’d made you come.

“Wait, fuck, I wasn’t looking,” he rushed as he popped his head up from the crook of your neck, “do it again.”

You laughed breathlessly and pushed against his shoulder a bit; “Shut up, I can’t do it on command.”

“You did it the last two times I told you to,” he reminded you, and that just made you feel even more deliciously dizzy.

Yes, you were definitely his girl now—totally addicted to him. You’d never felt like this with somebody—not just physically, but the trust and the laughter and the comfort of it all. This wasn’t a too-empty dorm room that still smelled like fresh paint, it wasn’t a mattress with no sheets in an apartment with 5 roommates nearby, it wasn’t a guy you vaguely knew from a two-hundred-student class or someone you saw on a dating app and talked with for an afternoon before meeting for ‘coffee’ (it was never just coffee). This was Mr. Murphy—and that should’ve made it weirder, but somehow, it just made it make more sense.

“So, if I tell you to come again,” he spoke lowly by your ear, a new authority to his tone, “you should come.”

You couldn’t think of anything else to say: “Yes, sir,” you breathed, hugging him close to you and pressing your face against his shoulder.

Of course, it wasn’t quite instantaneous, but just another minute of him giving you those deep, controlled thrusts right into your favorite spot sent you over the edge easily—and this time, he gently guided your face out of its hiding spot and looked at you, watched your pleasure overtake you, tenderly rubbing your cheek with his thumb. “Good girl,” he praised softly, kissing you again just as the last of it drained from you; you were so numb that you barely heard him whisper something to you—it took you a few seconds to process it.

“I’m gonna come,” he’d whispered to you, “fuck, you’re so fucking warm…”

“Come inside,” you instructed, and for all the concern he tried to perform for you after you said that, his moan was undeniable, as was the way he started to move faster.

“Fuck, really?” he nearly whined. “Are you sure?”

“Yeah,” you nodded, panting.

“You’re on—”

“Yes, please, just come inside me,” you begged, and he finally stopped protesting and pressed himself as deep into you as he could—you could feel the way his cock flexed, and it made your exhausted walls dig up just enough energy to flex back.

“Fuuuuck,” he groaned, holding onto you tightly.

You hummed a little at the feeling, turning your face towards his, hoping to see what he looked like in this moment—but he pulled you into another kiss before you could get a good look. Even this kiss was different from the others—a little slower, a little more tired in a wonderful, dreamy way. He was breathing heavy against you, and eventually he found the energy to push himself up with his arms on either side of your head, and you smiled up at him. He looked really fucking good like this: his face a bit flushed, which seemed to show his freckles and fine lines even more (which you adored); his hair falling down, a little wavier from the slight sweat he’d worked up; his lips swollen and slick from the kisses; and those eyes, they looked as beautiful as always, but they made you feel beautiful, too.

“Is taking this one out gonna hurt, too?” he asked you with a smirk.

“Probably a little,” you shrugged.

“For both of us,” he agreed, “I’m so fucking sensitive now… you really do have me acting like a desperate college boy—but you know, it’s been a while, so…”

“Right, sure—good excuse,” you joked, but you didn’t mind any of it either way.

He did it a little quicker, pulling back as he took a sharp breath in, and you giggled softly.

“Fuck, I can feel it, like… leaking out,” you admitted, biting your lip at the sick satisfaction of the warm gush.

“I think I need to see that,” he said, sitting up and picking your legs up from under the knee to look at you. This was apparently a habit of his—and you were starting to get used to it already.

“How’s it look?” you asked, wondering if he’d finally stretched you out after that.

He just stared at it for a moment longer, running his tongue over his teeth, before finally looking back at you and saying with a smile: “Looks like you need the Tide pen more than I do.”

#cillian murphy x reader #cillian murphy smut #cillian murphy fic #cillian murphy rpf

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