I Want Your Girlfriend to be My Girlfriend Too
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Pairing: Frank Castle x f!Reader x Matt Murdock
Summary: After months of pining in an underground safe house in New York, Frank, Reader, and Matt finally let the sexual tension come to a head when a conversation swiftly turns from innocent to sensual after Frank confesses his deepest desire to Reader.
a/n for context: My poly!fratt content has never been apart of a chronological series, or even necessarily happening in the same universe. I've always left it vague enough to make these more like oneshots, and less like a cohesive story. In this instance, Frank, Matt, and Reader have never been together and are discovering their feelings for each other for the first time. This is straight up S M U T.
Wordcount: 4.4k
“C’mon, go again.”
Frank’s gruff voice carried across the makeshift gym you’d been exercising in for months. You were currently in the middle of beating a punching bag into submission, but your mind had wandered a little too far from your body. When you blinked out of your haze, you realized you had stopped punching completely and had a fist resting against the swaying bag.
You didn’t know how long you’d been standing there, panting hard without actually moving. Frank stared at you from the other side of the safehouse, hands on his hips in clear admonishment of your daydreaming.
“Sorry.” You mumbled, shaking the thoughts from your head and repositioning your feet.
You began your combination again. Jab, jab, straight right, knee to the groin, reset, go again. It was your favorite because it involved getting to imagine kneeing men in the groin, but your mind was having a hard time keeping up with your body today, so even that wasn’t enough to keep you focused.
“What’s going on with you today?” Frank sidled up to the other side of the bag, holding it lightly as you continued the combination.
“I’m just,” you started, breathing out as you brought your knee up to the bag, “worried about Matty, I guess.”
“What’s wrong with Red?” Frank stuck a hand out, pushing your right shoulder back into the proper position.
“He’s been so weird lately. I can tell something’s bothering him, but he won’t talk to me.”
“Ah.” Frank nodded, tapping the bag with his palm as a reminder that you’d stopping moving. “That’s Red for you. Keep going.”
You rolled your eyes, throwing another punch into the bag in the hopes that it might knock Frank off balance a little. He was made of stone apparently, because he barely acknowledged it, arching an eyebrow at you.
“It’s not just that. He hasn’t-,” you paused, unsure if Frank really wanted to listen to your boy problems.
Frank nodded along, lightly nudging your elbow back into place with a finger.
“He hasn’t what?” Frank eyed your technique, looking for something else to correct.
“Well, he’s usually so touchy with me.”
Another punch, another knee.
“And since we got here, it’s like he’s been terrified of touching me. He comes and goes so much these days. I haven’t seen him in two days.”
Frank blinked. Clearly, this is not what he had been expecting you to say.
“And...that’s upsetting you?” Frank asked, trying his best to be supportive. He was in over his head, but at least he was talking to you.
“Yes.” You emphasized your frustration with another punch. “I know we’re not together, but I thought maybe we’d-...that he might...I don’t know.”
You shrugged, turning away from the bag. This workout had done nothing but make you more anxious about Matt. You plopped yourself onto the padded floor, stretching your legs out in front of you. Frank shuffled his feet next to the punching bag.
“I mean, I’m not delusional. I know a relationship right now would be a bad idea. He’s in hiding, you’re supposed to be dead, and I haven’t been seen in public in years. It would not end well. But I still thought...maybe he’d want me.” You trailed off, slowly falling back onto the floor so that you could lay flat. “Does that make me insane?”
You looked over at Frank, who looked like he’d rather be anywhere else in the world.
“Don’t answer that.” You scoffed, resting your hands across your stomach and closing your eyes. “Never mind.”
“I don’t think you’re insane.” Frank said, voice a little closer than before. You kept your eyes closed, but you could tell he was working up the nerve to move closer to you. “I think both of you are idiots.”
Your eyes shot open, glaring in Frank’s direction. Frank stretched out next to you, laying in a similar position to yours. His smile spread into a smirk, chuckling.
“What the hell, Frank?” You asked, stifling a giggle of your own.
“I didn’t mean it like that.” Frank looked away, shaking his head. “I just meant it’s clear to everyone in the room except y’all that you’re dying to rip each other’s clothes off. Do you know how annoying it is to live with people who clearly want to have sex, but won’t do anything about it?”
You jolted up, leaning on an elbow to stare at him fully.
“That’s not true!” You yelped, though there was a buzzing in your chest at Frank’s words. He was right, but you weren’t going to admit that.
In truth, you’d imagined both Matt and Frank fucking you in every position possible, whimpering when you touched yourself and knew they were too far away to hear. You’d made yourself come more times than you could count to the thought of them, but you never imagined any of that would come to fruition. It was a silly daydream.
“I don’t blame Matt.” Frank added, facing you again, “Sometimes I want to tear your clothes off too.”
A blush crept up your face. Frank had never been so forward with you. Sure, he flirted with you occasionally, but he’d never been so pointblank about it.
“You don’t mean that.” You breathed a laugh.
“I do.” Frank said, shaking his head, “But I’d never say that in front of Red. I think he’d have an aneurism.”
You gaped at Frank, realizing you had completely misread every interaction you’d ever had with him. Frank shook his head again, facing the ceiling. Your mind was a car crash of conflicting thoughts and images as you processed Frank’s confession.
“Well, I didn’t know that.” You finally said, mirroring his movements. The room had suddenly swarmed with heat. A sudden image of Matty gripping your throat while Frank dipped his head between your legs popped into your mind, and you couldn’t stop a sigh from leaving your chest. Was it too much to ask to have both of them?
You’d had plenty of those delicious thoughts before, but this felt different. Frank had started it this time, which made the tension in the room a tangible beast.
A sudden scuff on the floor pulled you from your daydream. You quickly sat up, turning to find Matt standing in the stairwell, frowning.
“What’s going on here?” He asked, reading the tension in the room like a book.
Frank chuckled again, pushing himself off the floor.
“It’s nothing, Red.” He said, attempting to stalk past Matt. Matt’s face was caught between desire and anger. He shot a hand in front of Frank, stopping him.
“Are you sure?”
You didn’t know which man you wanted to watch more. Matt, with primal desire written all over his face, or Frank, who couldn’t hide his growing smirk. Unstoppable force meets immovable object. You wished you were inbetween them. You tightened your already crossed legs at the thought.
Matt cocked his head, registering the movement. Smirking when he realized what it meant.
“Because if you’re not,” Matt whispered, tightening his grip on Frank, “She’s so turned on right now at the thought of us fucking her that I can taste it.”
He tilted his head towards you, sending another wave of heat through the room. You froze, slightly embarrassed that he read you so well. Incredibly turned on at the thought of being taken by both of them.
Frank eyed Matt, narrowing his gaze. You’d never ached for something so much in your life.
“Now, I’m gonna go take care of her. You’re welcome to join me, if that’s something you might be interested in.” Matt said carefully, loosening his grip on Frank before turning to face you. “She’s so needy already.”
Your eyes widened, suddenly self-conscious of Matt’s full attention. You caught Frank’s gaze, pleading for his attention too.
Frank didn’t move toward you, but he didn’t leave either. He simply relaxed against the doorway, curious to see how this played out.
“Is that okay?” Matt asked, stooping in front of your figure, still frozen to the same spot on the floor.
You glanced between him and Frank, wondering if you were dreaming. Your cunt was already so wet, you had surely soaked through your panties by now. Slowly nodding, you looked up at Matty.
“Yes.” You breathed, suddenly wanting nothing more than to put his cock in your mouth.
“Good girl.” He said, tapping you on the nose with a teasing finger.
He opened his palm, indicating for you to place your hand in his. He slowly pulled you to a standing position, tugging you behind him.
A confused grunt escaped your lips, bringing a smile to Matt’s face.
“I’ve been dreaming about this for months, sweetheart. The first time I take you, I want to do it in bed. Properly.”
“Didn’t realize you were such a gentleman, Red.” Frank snorted, watching you with such an intense look on his face that you thought you might faint.
Matt chuckled. “I’m full of surprises.” He replied, voice gruff.
You quietly gasped, realizing Matt wanted Frank to join this as much as you did. He really was surprising you today. He pulled you past Frank, giving Frank another opportunity to join. Frank still seemed unsure, sending you a questioning look as you passed him. You smiled, placing your free hand in his, tilting your head for him to follow. You knew he wanted it too, but you figured Frank was fighting a war against himself in his head.
“It’s okay to want us both, Frank.” You whispered, squeezing his hand. “Right, Matty?”
Matt hummed, unsure if his input would convince Frank to join or make him run for the hills. Frank had never looked so conflicted, but he cleared his throat and nodded, decision made. He was nothing, if not brave. Your core pounded as both men led you to the bed you’d been sleeping in since making your way to this safehouse a few months ago.
Another flush made its way up your throat when you realized the two people you had been having filthy dreams about were currently walking you to the bed where those dreams occurred every night. You wished you could pinch yourself to make sure this wasn’t another dream.
Matty nudged you toward the bed, placing his hands on his hips in typical Matt fashion. He quietly set his glasses on the bedside table, clearing his throat. Frank stood nearby, fiddling with the fingers of the hand he still held.
“How do you want me?” You breathed, looking up at both of them from the bed.
Frank grunted, running his free hand along the curve of your shoulder. He didn’t answer, but his eyes darkened in response to your question.
“Red?” He said, giving Matt the lead in the situation.
“I need to taste you,” Matt said, dropping to his knees in front of you. “That okay with you, Frank?”
Frank grunted, stalking to your side and pulling you into a fiery kiss. His tongue plunged into your mouth, domineering the kiss immediately. You considered pointing out that this was the first time Frank and Matt had ever agreed on anything without arguing, but Matt was already sliding your leggings and panties down.
Matt hissed when he found the mess between your legs. You gasped as the cool air hit your swollen clit. Matt licked his lips before pressing kisses to your inner thighs. All the while, Frank was demanding your attention with intense kisses. His hands gripped the bottom of your shirt, tugging it over your head in a swift motion.
You were suddenly bare in front of both men, eliciting a deep moan from your throat. The dichotomy of Frank’s bruising kisses and Matt’s gentle nudging against your inner thighs was working you into a frenzy.
Finally, Matt’s tongue swiped between your folds, sighing contently when he finally allowed himself the pleasure of tasting you. You gasped into Frank’s mouth. Matt’s tongue felt like fire between your legs, and you squirmed without meaning to.
Matt tugged your cunt closer to his face, forcing you to be still. It was all so overwhelming that another moan left your throat before you could stop it.
“I think she likes that, Red.” Frank mumbled, leaving a trail of kisses down the column of your throat.
You certainly did like that. Matt’s tongue lapped at your cunt, devouring you whole as you whined. The ego you’d have after all this attention from Frank and Matt would have you swimming on cloud nine.
“Oh god, Matty.” You breathed, grinding against his face, begging for more friction.
Matt smirked up at you, plunging his tongue into your cunt again with a ferocity you didn’t know he was capable of. Frank pulled you into another kiss, lightly squeezing his hand around your throat. You nearly came from that alone.
“Oh, god.” You whined, shaking as Matt continued to attack your core. “I’m gonna come.”
“Oh yeah, sweetheart?” Frank asked, nipping at your jaw. “Matty’s going to make you come?”
“Yes,” you cried, involuntarily arching your back when Matt sucked on your clit.
You panted, feeling the heat deep within you bubbling under the surface. Matt smiled as he slowly brought a finger up, teasing your wet entrance.
You whined again, pathetically widening your legs. Frank was holding most of your weight up with his strong arms, otherwise you’d surely be writhing on your back on the bed by now. Matt sucked on your clit harder, slowly plunging his finger in and out of you.
The orgasm hit you faster than you expected, but Frank and Matt were ready. You let out a cry, breathing hard as heat washed over your body. You felt like you were swimming on dry land, hurled into the most mind-blowing orgasm of your life.
“There you go, baby. Come for us, sweetheart.” Frank whispered, tightening his grip around your throat.
You whined, orgasm crashing through you as Matt continued to lap at your pussy, pushing his finger in and out of you.
“Ah, fuck!” You yelped, panting as you finally came down from your high. Frank loosened his grip a little, but Matt continued to play with you, kissing your sensitive clit. You squirmed, but even being oversensitive didn’t stop you from enjoying Matt’s attention.
When you were finally too sensitive to let him continue, he pressed a kiss to your clit that told you he was finished for now and rested his cheek against your leg.
“How’d she taste, Red?” Frank asked, panting when he noticed the shine on Matt’s jaw.
Matt licked his lips, seducing the deepest, most primal part of you into submission. You would do anything to see him do that again.
“Delicious. Want a taste?”
Frank smirked, tugging Matt off his knees. The air whooshed from your body as Frank pulled Matt into a bruising kiss, mouth still slick from eating your pussy. Their tongues melded together in a fierce battle, daring the other to stop, damning you all to hell with how sensual it was.
Frank’s hand wound around your shoulder, tugging you off the bed and into his arms. He groaned in indulgence, taking turns kissing you and Matt. Your hands managed to tug on the bottoms of both of their shirts. With a pant, you pulled away from them.
“Off. Off.” You said, before colliding with Matt’s smirking lips.
“Yes ma’am,” he mumbled against your lips, cupping your face slightly before pulling away to remove his clothes.
Frank swiftly removed his shirt, tugging your attention to his muscular torso. Your mouth filled with water as you eyed the cut of his abs. A sudden urge to be thrown across the room filled your entire being with need, but Matt’s insistent kisses on down your neck pulled your attention back to him.
Your head swam with pleasure, but it wasn’t enough. You needed them inside you. You wanted them everywhere, all the time.
“Matty?” You asked, nuzzling your face against the scruff of his jaw.
“Hmm,” he hummed into your neck.
“Don’t you think Franky deserves a reward for being so patient?”
Matt smiled against your skin before turning to face Frank, whose eyes darkened beyond belief at your words.
“C’mere,” you said, tugging on the waistband of his jeans.
He stumbled forward, swallowing thickly as you unbuttoned his pants and pushed them down his legs. He stepped out of them, watching you closely as he sat on the bed, unsure how to approach this situation. He’d certainly received blowjobs before, but never with a third person in the room, let alone one of those people being Matt.
You lowered yourself to your knees, happy to watch his cock twitch with anticipation. He was huge. You wondered how heavy it must be for him to carry every day. You pumped up and down a few times, eliciting the most sensual grunt you’d ever heard from Frank’s mouth.
You licked your lips before leaning forward, taking his cock in your mouth. You couldn’t fit the entire thing, but you did your best to take as much as you could. Matt shuffled behind you, removing his pants and watching you work Frank into a frenzy. Frank fisted the sheets so roughly you thought they might tear.
“Ah, fuck,” he grunted, breathing in gasps, “Just like that baby.”
You felt Matt step beside you, pulling your hair into a tight fist and nudging you further and further down Frank’s cock. Frank couldn’t stop himself from moaning, squeezing his eyes shut as you completely ruined him.
Matt pumped his own cock with his other hand, unable to help himself. He’d never seen something as sensual as Frank at your mercy, whimpering with pleasure. Frank eyed Matt's tall figure, an idea turning over in his head.
“Sweetheart, can you be a good girl for us?” Frank asked, running his knuckle along your cheek.
You looked up at him, slowing your pace along his cock.
“Matty sure looks lonely over there,” Frank said, eyeing Matt’s cock with hunger in his eyes.
Oh. Oh. You released Frank and turned to Matt, wrapping your lips around his cock. Matt’s knees nearly gave out when he felt your sweet tongue along his tip. He watched in delight as you sucked him, then switched back to Frank, then came back to him. All the while, pumping the cock of the man who didn’t have the pleasure of your mouth on him.
“Atta girl,” Frank said, praise shooting directly to your cunt as you continued to pleasure them both.
“Oh, god.” Matt said, panting. “You’re doing so good, sweet girl.”
You looked up at their faces, lost in pleasure and desire, and decided right then and there that you needed them to eat you alive.
You slowed your pace, pulling back to whine.
“I need you inside me.” You grunted, not sure which man you were talking to. Both? Definitely both.
Frank didn’t hesitate to lift you from your knees and pull you onto the bed next to him. He was tired of going second, and he hadn’t made you come yet. Matt chuckled as Frank hovered over you territorially. You should’ve known this would become a competition between the two of them. You figured that would change eventually, but for now you were happy to be stuck between them and their pride.
“Are you sure this is okay?” Frank asked, grunting as his tip glided through your folds.
“Please, Franky. I need you.” You moaned, reaching for Matt’s figure as Frank plunged into you.
Frank allowed you a few seconds to adjust to his massive size before he began pounding into you, attacking your neck with kisses. You were sure to have marks lining the column of your neck tomorrow, but you couldn’t find it in yourself to care.
Matt sidled up to you, pulling you into a deep kiss as Frank glided in and out of you. A heated whine erupted when Matt’s finger brushed your exposed nipple, which brought a wicked smile to Matt’s face.
“Shit, Frank,” Matt groaned, running another finger over your nipple, “She likes that.”
“Yeah, Red?” Frank grunted, repositioning so Matt would have room to do every sinister thing you’d been dreaming of for months. “Better not leave her waiting then.”
The moan that left your throat when Matt flicked his tongue over your nipple was loud enough that you were sure all of New York heard it. Matt proved again how dexterous his tongue was as Frank continued to pound into you.
The world around you faded away. It was just you, Matt, and Frank, making one another feel so good that you couldn’t remember enjoying anything besides this. You wanted to get lost in it forever. You never wanted to leave this stupid safehouse again.
“Oh, shit,” You bit your lip, lost in the pleasure of having two sinful men worship you. “ ‘m gonna come.”
“Yeah, baby?” Frank shifted his weight, plunging deeper in you than you knew was possible. “You gonna come all over my cock? Show us how much you want it, sweetheart.”
Matt’s hand slowly made its way to your clit, moving in slow, sensual circles.
Your vision faded as you came so hard you could barely breathe. Heat exploded from your core, sending sparks of never-ending pleasure through your body. You couldn’t remember a time you’d come this hard.
“Atta girl,” Frank said, though it entered your ears in a muffled rumble. “So good, sweetheart. She’s so wet, holy fuck.”
The last part was directed to Matt, who watched you slowly come back down to Earth. You breathed heavily, chest rising and falling in a hypnotic rhythm.
Matt’s breath ghosted your cheek as he praised you quietly
“You did such a good job, sweet girl. You’re doing perfect. So perfect for us.”
After a few moments of pure bliss, you finally had enough energy to blink up at both of them, instantly sparking another round of heat between your legs. Frank had slowed his pace as you came, not wanting to miss any part of the orgasm he pulled from you, but his thrusts were growing sloppier by the second.
“Can I-” You started, suddenly shy at the idea that crossed your mind.
“What do you need, baby?” Matt said, running a knuckle across your cheek. “Are you okay?”
“Can we flip over?” You asked, avoiding the gazes of both men. “What I mean is, I want Frank to fuck me while I blow you, Matty. Can we?”
A pained groan left Matt’s throat. Your sweet, innocent eyes blinking up at him while you asked for such filthy things was almost enough to make him come immediately.
Frank smirked, pulling out of you completely and flipping you over onto your stomach in one motion. He was pushing back inside of you with a groan before you had time to get embarrassed by your request. Matt shifted to his knees, lifting his cock to your mouth.
You wrapped your lips around him greedily, wanting nothing more than to repay him for the orgasm he’d given you earlier. Frank slamming into you made it even easier to take Matt fully. When his cock slid along your throat, he let out a curse so undignified that even Frank had to look up at him and chuckle. Matt’s hand found its way under your jaw, cupping your throat as you continued to take his cock in your mouth.
You groaned as pleasure washed over your body for the third time. You couldn’t believe how turned on you were by Matt’s indulgent groans. Frank’s hand smacked your ass, eliciting another deep groan from your throat.
“Oh, fuck,” Matt mumbled, closing his eyes as pleasure overtook him. Groaning around his cock was apparently enough to entice an orgasm out of him. Spurts of warm cum slid down your throat as Frank smacked your ass again. The pressure of his thick cock was bringing you dangerously close to another orgasm, but you wanted to make them come first.
Matt gulped in air as you swallowed every drop of his pleasure. He couldn’t imagine being happier than he was at that moment. Frank’s thrusts grew sloppier as Matt’s moans filled the room. You arched your back even more, wanting so badly to make him come.
“Franky,” you moaned, dropping Matt’s cock from your mouth, “I want you to come in me.”
Frank gripped your ass hard enough to bruise it. Matt smirked, mumbling another praise under his breath.
“Are you sure?” A pain grunt escaped Frank's throat as you lifted your ass even more, begging for his come.
“Come in her, Frank,” Matt said, gripping your hair in his fist again. He watched as Frank’s features went from focused to blissful.
“Atta girl,” he grunted, stuttering as he came deep inside you. You followed, unable to stop your third orgasm from cresting as Frank’s warm cum filled you up.
“There you go, sweet girl,” Matt praised, watching you fall apart around Frank’s cock. “You look so pretty when you come, baby.”
Your body shook with pleasure, and when Frank finally stopped moving, the only thing you could focus on was the sound of the three of you panting. He slowly slid out of you, flopping onto the bed beside you. Matt followed, mirroring Frank on the opposite side of your exhausted body.
“That was...amazing.” You sighed, still out of breath. “Can we do that again?”
Matt hummed, nuzzling his head against your chest while Frank chuckled.
“Was it okay?” Frank asked, a hint of insecurity creeping into his voice, “For both of you?”
“It was...” Matt whispered, closing his eyes and sighing, “perfect.”
Excitement tingled in your chest at the thought of doing it again. And again. And again.
You turned, pecking Frank on the cheek before nuzzling into Matt’s warmth. Frank’s arm wrapped around your waist, resting his hand against Matt’s muscled torso.
You knew you’d have to have a conversation later about what this all meant for the three of you, but for now, you were content to close your eyes and rest in the safety of their arms. Matty was already softly snoring against your chest. Frank looked more at ease than he had in years. The warmth of the afternoon and the rhythmic breaths of the two men next to you lulled you into a sleepy haze, pulling you slowly into the deepest sleep you could remember. Perfect, indeed.
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