Reader has PCOS and has frequent visits. Knives has been your doctor for a while and has always had minimal teasing... that is until his twin brother Vash becomes his intern.
AO3 is RenjiRin69
Story Below
Doctor/Patient Privilege
I always dreaded these appointments. What normally would be a yearly or every three year check-up… I had check-ups every few months. The life of someone with PCOS.
If the check-ups weren’t painful enough, I have painful menstrual cycles, sensitivity to basically everything, headaches all the time, and painful intercourse… not that I was getting any in the first place.
Another reason why this is so difficult. My Doctor is gorgeous. My nerves always got the better of me and I’m sure he notices how nervous I get. I head into the room where his… new assistant maybe? comes in. He was just as cute as the Doctor. He smiles.
“Hello, I’m Dr. Nai’s intern Vash. So what brings you in today?”
We exchange small talk as he takes my vitals, getting a few chuckles out of him.
“Well I have all your information, please undress from the waist down, and use the sheet to cover yourself. The doctor will be in shortly.”
I nod, “Thank you.”
He nods, “No problem.”
After I situate myself, Dr. Nai comes in.
“Hello again, [F/N]. Any changes?”
“Nope.”
He looks at my charts, “Sexually Active?”
“No.”
“Any chance of pregnancy?”
“Same as last time. If I was, you better call a priest.”
He chuckles, “Alrighty then,”
Then his intern comes in, Nai smiles,
“Just in time. I was just going take a look at her. [F/N], Vash here is in training. I hope you don’t mind?”
I shake my head, “No… it’s fine.”
He looks at Vash, “She’s the one with PCOS. Be sure to be extra careful with patients with similar diagnoses. This one especially, little [F/N] here is a virgin.”
I blush and his assistant blushes too while Nai chuckles.
“No need to feel embarrassed [F/N].”
I look over to Vash and notice his beauty mark… then I noticed that they looked alike.
“You two… really look alike.”
Nai smiles, “He’s my twin brother.”
He begins looking and running tests. After a bit the tests were getting to be too much, I begin to tear up and making noises of discomfort. Dr. Nai touches my knee.
“You need a break?”
I nod and he looks to Vash, “Be sure to watch their reactions as well. But don’t watch them too much.”
Dr. Nai asks, “How about we reschedule for in a couple of days. I don’t want to put too much on you.”
I nod, “That sounds good.”
He writes a slip to give to the receptionist to schedule me. He slides away in his chair before getting up.
“See you in a couple days, [F/N]. Vash make sure she gets her appointment time correct.”
He leaves but before Vash left, to let me get my clothes back on, he stood by the door.
“Does Nai… tease you about your virginity often?”
I was a little shocked by his question and a little nervous.
“No… I mean he brings it up, but that’s his job to know.”
“R-Right… but don’t feel like it’s a bad thing… I’m actually still a virgin.”
My cheeks flush as I grip the sheet, he defends quickly.
“Sorry. I said too much. I forgot the first rule already… don’t get personal with patients. Sorry. I’ll let you get dressed.”
With that he left. I sit up, go to the bathroom to clean myself before getting dressed. I exit the room and walk to the desk. Vash was at the desk and he smiles as he hands me the card with the date and time of my appointment. He looked a bit embarrassed.
I smile, “Thanks for the reassurance. See you in a couple of days.”
He seemed taken aback for a moment but then smiles.
“Yup. See you later.”
The couple days went in a flash and I was here again. Vash seemed to be more closed off this time. I must have been one of his first patients the other day. He checked my vitals and then gives the normal talk before leaving. It actually bummed me out a little. I liked his cheerful demeanor.
I undress from the waist down and once I sit, they both enter. Vash looked a bit bothered. Nai smiles.
“Morning, [F/N]. Didn’t get lucky with anyone while you were away did ya?”
I chuckle, “Afraid not.”
He puts on his gloves, “Well I’ll know when I check.”
Vash whispers, “Nai… you can’t say that.”
Nai sighs and looks at me, “She knows I’m teasing.”
He smirks… it was almost seductive, causing me to blush, I nod and he continues,
“And hey, at least I’m not like Vash here. Getting a job like this is the only way he’ll get to see some real women.”
Vash’s blush covers even his ears and neck.
“Be professional, Nai. I’m supposed to be learning.”
He sighs, “[F/N]. I’m going to be performing a new practice. It’s supposed to help with the pain. I’ll will be careful and I hope this method is better suited for you.”
I nod, “If it’s less painful then sign me up.”
He smiles but Vash looked confused, Nai pats my knee.
“Atta girl, just lay back and move your hips forward a bit.”
I do but it apparently wasn’t enough, he lifts my butt and pulls me closer to him.
“There we go. Now just put your legs on the rest and just relax.”
I nod, taking a shaky breath. The way he lifted me up slightly, startled me. I heard a small sound of rubber gloves and Vash was staring at his brother, in shock, shaking his head. I look at the ceiling, trying not to focus on them too much.
“Now you’re going to feel some pressure [F/N]. Tell me if it’s painful.”
I nod, closing my eyes. I suddenly feel the pressure of fingers, I try to relax.
“It’s okay, see Vash. Even our tools can be too difficult to insert in a patient such as [F/N] here. We don’t want her to be in any pain, do we?”
“N-No.”
“[F/N]… try to relax for me.”
I nod and he pushes his fingers in more, I shiver and then my eyes widen… his hands weren’t gloved. His fingers then scissor. My breath hitches and I grip the sheet.
His hand lightly squeezes the inside of my thigh.
“You okay? Does it hurt?”
I shake my head no, “It’s… different.”
He chuckles, “Here…I’m going to let Vash take over for a minute. He really needs more hands-on training.”
I nod, “Okay.”
He pulls away and when I look, my cheeks redden before I look away quickly… Nai had his fingers in his mouth. Vash’s hands pat my knees.
“Okay, [F/N]. Let me know if you experience any discomfort.”
I nod, and he carefully inserts two fingers, getting the same reaction out of me again… He wasn’t wearing gloves either. His fingers began to move, feeling my inner walls. I let out a shaky breath.
Nai says, “You feel all the ridges and bumps? Make sure to take note of any changes at a later date.”
Vash suddenly curls his fingers slightly, hitting a really good spot. I cover my mouth and my legs begin to tremble.
Nai says, “Don’t do that too much. Her virgin body can only handle so much. We are here to examine her… not sexual misconduct… she’s got some cute reactions though, huh Vash?”
Vash huffs, “Shut up.”
I cover my face, “This isn’t a new practice is it?”
Vash’s fingers retreat carefully, “I’m so sorry. My brother is an idiot and-“
Nai interrupts, “If she wanted you to stop… she would of said so.”
I couldn’t look at them, I didn’t want to give consent, it was too embarrassing. I didn’t even want to admit that this was really happening. I feel hands grip my inner thighs. I jump but then look.
Vash was looking at me. I only nod, afraid of what I would say. He nods back and raises the bed that I was on. Once it stops I hear the rolling chair scoot closer. I suddenly feel warm breath against my core.
“If I’m gonna get in trouble, might as well go all out then.”
He leans in, kissing it before lightly sucking my sensitive areas. I let out a shaky moan as I grip his hair. Vash groans and it only adds to my pleasure. Nai gets up, walking towards me.
“You’ll need to keep quite, [F/N]. Want me to help?”
He grips himself through his pants and his pants definitely looked strained. I look up with a nod and he smiles.
“You’re being so good for us. I knew you were special.”
He undoes his belt, unbuttons and unzips his pants before pulling himself out. I’ve imagined how it would look but my mind was fuzzy… this was the real thing. He aligns himself at my lips.
Vash inserts his fingers again, curling them at the right spot. Nai quickly inserts himself in my mouth before I make any more noises. Nai groans, his hips stuttering.
He guides my mouth to his liking. I sit up a little, doing more work to please him. My tongue presses firmly against a vein on his length before sucking a little more. Nai grunts.
“Sh-Shit [F/N]. You’re being so good for us… right Vash?”
He moans into my wanting heat and my legs go to wrap around his head, but he holds them open. He pulls away.
“Is she… can I?”
Nai’s brows furrow, “Wait your turn… I saw her first.”
He slides away in the chair while Nai takes himself out of my mouth. He goes back to look at my core.
“Look at how wet you are. I knew you just needed someone to be patient with you. Your diagnosis is to be treated with care… Now [F/N]… I know one’s virginity is something special… and under normal circumstances it is between two parties… but… would you be willing to share this experience with Vash too?”
Vash looked as nervous as I was. I avert my gaze with a nod.
“It’s okay… as long as you two are careful.”
Vash says, “Y-You’re really… why are you letting us do this?”
“I wasn’t really saving my virginity or anything… Nai seems to know what he’s doing… you say you lack experience but you’ve been doing good so far.”
Vash blushes and Nai pats him on the back,
“Now we know you’re good at eating out at least.”
Vash grumbles at his brothers comment but seems to be happy with mine. Nai gets closer, placing himself at my entrance. Gliding himself between my folds, gathering lubrication.
“I’ll start slow.”
I nod and he presses in, he bends down and kisses my chest. He moves in a little more, the discomfort coming back. He stops and starts massaging my hips and pelvic area. He looks to Vash.
“Make sure to do this too. This relaxes her body so she can take more… it also increases the intensity of her climax as well. Best to give her a win-win.”
Vash nods and Nai grunts as he pushes in fully. My legs tremble.
“N-Nai.”
He hums as he continues massaging my hips and pelvic area.
“Such a good [F/N]. You’re taking me so well. Your insides are perfect.”
I whimper and he shivers, gripping my hips a little tighter.
“You’re tensing up so much. I won’t ngh- last if you keep it up, [F/N].”
“S-Sorry, I’m-“
He chuckles with a small moan, “Don’t apologize. It just feels so good.”
I moan and Nai looks to Vash, “Help her out.”
Vash gets up quickly, unbuckles his belt, unbuttons and unzips his pants before quickly pulling himself out. He wasn’t as thick as Nai but he was definitely longer. He slides in my mouth with eagerness. His movements caused my gag reflex to kick in.
His movements slowed and were more careful. I moan as Nai’s thrusts hit every perfect spot. I pull Vash’s hips towards me, taking more of him as I moan. Nai’s hips stutter again but he lets out a low moan as I feel him release. He pulls out carefully, sitting on the chair. His breath was heavy.
“Shit. I don’t think I’ve ever came that fast before.”
Vash pulls away, moving to my lower half,
“Can we continue? We haven’t finished yet. You wanna cum too, right?”
I nod, and he slides in slowly. My back arches into him. It felt so deep. He does what Nai was doing and massages my hips and pelvic area. He starts moving.
“Is it good?”
I nod, “S-So deep, Vash… So good.”
His thrusts pick up in speed, “You’re so tight. I don’t think I can last.”
He begins stimulating me with his fingers as well, bringing me closer to my release. I reach up, pulling him on me, wrapping my legs around him.
“I’m ngh- please, Vash.”
He nods, massaging my hips as I reach my peak. He kisses me as his body stiffens and thrusts long, deep thrusts, releasing inside me before putting his weight on me. After a minute he sits up, pulling out.
“Sorry. Are you okay?”
I nod, “These tables aren’t comfortable enough for this.”
Nai chuckles, “I’m sure.”
I ask, “Have you done this sort of thing to many patients?”
“No… you’re the first. Seeing you always in pain really bothered me. I wanted to show you that you could experience non painful intercourse… when you’re with someone who is patient. I had been drawn to you for quite some time. You are a very beautiful woman who I would very much enjoy taking out sometime.”
I blush and Vash adds, “Under different circumstances… I would of given you so much care and would bring us to this point the right way. Sorry that your first time had to be on a patient’s table.”
I sit up more, taking Vash’s hand. I smile.
“It doesn’t matter where… all that matters is who… and I’m happy with how it turned out.”
He gets closer, “Really?... M-Me too. I mean I would have preferred to have done this without my brother around… but I’m happy.”
He leans in, kissing me, then places his forehead against mine.
“Maybe we can do something together sometime… just the two of us?”
I nod, “I’m sure I’ll be busy, now that I have to go on separate dates with you two.”
He smiles, and helps me to the bathroom to clean up the best we could. As Vash helps me dress, Nai stands outside the bathroom door.
“Be sure to take something for pain if you need it. I’m sure your body will be sore.”
I nod and walk towards the door, “I will. Anything else Doc?”
He smiles and then leans in, kissing me while holding my chin up. He breaks the kiss and runs his thumb across my bottom lip
Vash gets hurt and almost kicks the bucket. You help him and make sure he's on the right track to recovery. Plants heal faster than humans, and once he's better, he wants to thank you.
An Archive of Our Own, a project of the
Organization for Transformative Works
Summary: you have endured Knives countless abusive speeches ever since Vash convinced you to babysit his brother while he ran errands in the town. Eventually it became too much, to the point you had to put your mutt in place.
warning: this fic is an absolute kinkfest, I apologise. Also heavily Trimax implied (mostly anatomy wise not actual spoilers).
Another bitter lecture on why humans were an insufferable species, those words filled with venom that bounced off your slouched shoulders. Head already pounding with a headache, you had regretted agreeing to watch Vash's spiteful twin, bearing his verbal abuse on what appeared to be a daily basis now.
Yet despite those words spat your way, like you were the very reason of his hatred for humankind, Knives still found himself begrudging spooning your smaller form. The only issue with that was you were still subjected to his rants, until they were all that filled your dreams, dreams that use to be full of nothing but pure happiness.
"Incompetent species your kind are, useless and disgusting to gaze upon. Your very existence plagues this world, may you all burn one day." You rolled your eyes, yet kept silent about how his actions contradicted his words. The arm slung lazily over your waist as your back was pressed uncomfortably into his chest, his aura suffocating.
"Do you ever shut up, I'm trying to sleep and you're grating voice is causing my ears to bleed." You sighed, voice bitter as Knives squeezed your waist.
"You dare speak to me in such a tone? I will make sure you regret every word spok-"
"You piss me off," Knives' taller form was now beneath you, the rage on his face obvious from your position a top of him. "Acting high and mighty, but then crawling into my bed like a bitch in heat. You're fooling no one bar yourself."
Knives looked furious, teetering on the edge of rage if you persisted your outburst. He was furious, until the moment you tore that silk nightgown from your body.
"Someone ought to put you in your place," You hissed, fingers embedding themselves into his platinum blonde hair, pulling at tuffs until his face collided with your cunt. As your weight sunk onto him, squashing his face underneath you and the pillow he rested upon previously. "I know you don't require sleep, that's one positive we now have all night to make sure you're returned to your brother a dumbafied mess."
The growl against your clit had your thighs shaking, suffocating Knives between them. When he made no move to advance in your pleasure you took it upon yourself, grinding your hips against his contorted face. Chasing your high as Knives clawed at your body, mind indecisive as whether to stop you or indulge you.
It took a few minutes until you felt something wet slot its way inside your folds, lips suckling at your intimate flesh. Knives had decided to indulge your humanly needs, hands gripping your ass, a need to dominate even in this particular predicament. But he'd soon find out you had no intention of allowing him an inch power, stamping out that idea like embering flames.
You greatly despised the hands holding your waist, dragging you along his awaiting mouth. None but impressed, you raised your hips to break away from his reciprocation, bile in your throat as he slammed you back down hungrily. So you let him have his fun, manipulating him to believe he had the upper hand, that he was the one bringing you unrelented pleasure as you moaned sweetly.
In reality it was painfully obvious that Knives had no idea what he was doing, having never touched or seen a woman's body. His hungry lapping was sloppy, unsure of what to focus on, sure his teasing suckling against your flaps had you keening enthusiastically but that's where it stopped. Forcing you to press your neglected clit sharply against his nose, grinding against it to offer some relief. Knives may not have been pleased with this, but it didn't matter, soon he'd be finding out just how 'in control' the fucker truly was.
Once it hit the ten minute mark you knew you weren't going to orgasm any time soon, and as embarrassing it was you didn't have a choice to stop this unpleasant mouthing. Face red as you let out an loud moan, thighs clenching Knives face as you faked an orgasm, quick to remove yourself as your eyes glared at the man smirking at you. God he looked like an idiot, and how you desperately wanted to make him whimper like one.
"You humans are such simple creatures, chasing your disgusting pleasure highs and here you are calling me a bitch in heat, when you so beautifully cum." You wanted to gag, perhaps even admit you faked it to get him to stop embarrassing himself.
Without so much as a single word you got up, crouching down to grab a locked crate from underneath your bed. Knives watched with a quirked brow, sitting up as he crossed his legs, amusement in the form of sly smirk.
"Giving me the silent treatment? You truly are petty," Unknown objects were beginning to line up on the bed's edge, Knives frowning at them in confusion. "What are these?"
"You'll know soon enough, but this bitch in heat wishes for you to properly fuck her, think your Lordship could treat me with his cock?" Your voice was laced with something, malice? No, that couldn't be it.
Knives smirked, chuckling as fingers propped your delicate face to look at him. "Who am I to deny my sweet human bitch?"
The room was filled with desperate pleas, moans soon muffled harshly by the ball gag slammed against teeth. Nails dug into the sheets, clawing frantically to try and escape.
Knives felt his drool pool around the ball gag, tears filled his blue eyes as he whimpered, jolting at another harsh smack to his ass.
"I don't know whether to be disgusted or amused that you're getting off to this," That silky voice, belonging to the only devil present in the room as you smiled wickedly down at his form, running the whip teasingly along his cock. "Next time, don't test my patience."
Another snap of the whip, Knives crying against the plastic gag, trying to crawl away from your sexual torture. Only you brought him cruelling back, pulling him arms back as you clicked a pair of pink, fluffy cuffs around his wrists.
Laughter made Knives shiver, eyes wide and filled with fear as you leaned against his arched back, fingers pressed delicately against his rim. "Good thing you've already cummed for me three times, otherwise this wouldn't be as enjoyable. For you at least." The way Knives tensed had you giggling, shoving his face into the pillow as you angled the strap on against his prepared hole.
You could hear the frantic pleas from the man, muffled as he begged for you to stop. Except they only acted to urge you on, slamming your hips into his anus, earning a high pitched moan from the usual calculated and cruel twin. Satisfaction at having turned him into a drooling, moaning mess beneath you as you pounded into him at ruthless pace.
Knives with eyes full of beautiful, bliss out tears, looked back at you, not having the strength to muster even a glare as you winked at him. He wanted to curse you, strangle you for withering him to a submissive being completely at your mercy. Yet despite it all, Knives couldn't help but find some pleasure at how you had him drooling a muffled version of your name at each thrust against his prostate.
"You likin it? What a filthy excuse of a creature, indulging in such a disgusting act of self pleasure." Your words reflected his own, cruel and condescending. Those deceitful fingers drawing lines along his spine, causing his back to arch against the touch.
Leaning against his back, breasts dug into shoulders as your teeth nibbled at his ears. Laboured breathing sounded heavenly, eyes rolled into his skull as he covered the sheets beneath you two in bioluminescent cum.
"Please....no more...I can't."
"Such a filthy whore."
"You can't? I thought you were a superior being, stronger than any mere mortal that walked this hellscape?" Knives whimpered, hiding his tears has you dragged your hips excruciatingly slow along his pelvis.
Hands placed against his chest, fingers pinching his nipples as you stilled, appreciating how his cock twitched against your cervix. You had to admit that Knives looks angelic beneath you, the feathers sprouting at random an added extra as he struggled to keep eye contact.
"You've satiated your desires, please you can't need anymore." Knives hated begging, but what else was he to do when it came to appeasing the succubus milking him until he was dry.
Knives could no longer see straight, cum dribbling endlessly from his throbbing cock, encased in your hands as you pumped the fleshlight up and down along his shaft. His mouth was wrapped around one of your nipples, not like he noticed at this point, numb to overstimulation.
"My sweet Knives, you should know by now," You leaned forward, pulling the collar tighter around his throat untilheet out strangled cough. "I'm insatiable."
A stuttering cry sounded from the blonde, releasing your nipple at the pain of coming again, fresh tears staining his feather covered cheeks. Those soft, silk like feathers encased your body, their touch gentle against your skin.
Collapsing against your chest, face buried between those warm pillows as he sobbed. Incoherent word vomit spilled from his bruised, drool coated lips. Shivering at the way you giggled, finally freeing his flaccid cock from the textured fleshlight.
Taking the collar off his neck, smiling proudly as Knives sucked in much needed air, thankful to be able to breath properly. You moved him to the side, his body limp as you circled his cock with a finger, watching it stand yet again in painful anticipation. Knives whimpered, wondering what other cruel torture you had in mind, no longer surprised at your insatiable desires.
"Still wanting more? My, my, my how adorable you are my sweet slut." Your voice was no longer cruel, you may have whipped his ass raw, choked the air from his lungs and fucked him into another dimension, but you no longer had that malicious undertone. Instead opting to sweetly degrade him, praising him for how he came for you over and over again, getting hard after each touch to his cock.
Legs hoisted over his head, Knives tried to focus on what you were doing, panting as he felt something enter him again. It was large, not to mention unnaturally wide as he grunted at the intrusive toy. What had his body convulse and contort with pain and pleasure was the intense vibrations against his prostate, drawn out whines filling the small room yet again as his legs rested against your shoulders.
"Good boy, now he can't forgot that gorgeous cock of yours." Something snapped against his tip, the small band squeezing the head of his pulsating dick. "Just to make sure you last as long as possible, don't want you coming too soon, especially now that you're on the verge of breaking."
You re-inserted his cock into the fleshlight, only this time pressing a few buttons on the side, intense vibrations causing Knives hips to buck up, back arching. You flipped him over, laying on your back as you wrapped your legs around Knives face.
"Now eat me out properly this time, I want to cover that face in my cum, mark you as my personal whore." You cooed, fisting tufts on his hair as grinded his face against your dripping cunt.
This time Knives knew what to do, mustering enough energy to suck and lick your clit. His actions were slow, sluggish as the smallest of movements were agonisingly painful to perform. Releasing your clit, Knives began lapping at your pussy, pressing a shaking thumb against your bud of nerves.
Moans spilled from those cruel lips, along with praises and mocking coos. Yet despite the way you mocked him, Knives couldn't help swelling with exhausted pride at finally pleasing you, hoping this torture would now end.
And thankfully it did, the moment you crushed his head between your quivering thighs, gushing over Knives fucked out face, you halted the devices vibrations. Freeing his abused cock and anus from their toys, Knives collapsed wings wrapping themselves around his body as if to protect himself from your satiated lust.
"Heya Y/N! Hope Knives behaved last night, so sorry about leaving you with him again." Vash, finally back from whatever errand he was running, stood awkwardly at your door.
Gentle hands brushed themselves along those wings, weight sat upon his back as he caught his breath. Knives prayed to whatever holy being that you had had enough, eyes drooping at the exhaustion tugging at his limbs. Arms encased his feathery form, your warm body pressed against his back as kisses were placed along any exposed patch of skin. Humming filled his ears, drifting him into a much needed sleep.
A smile tugged at your lips, cruel and devilish. The look had Vash confused as you stepped aside to let him in, leading him to the living room.
There, collapsed and sprawled out on soft, velvet couch was his sore, strained twin brother, face contorted as the discomfort of moving had him remain in place. Not even Vash's gentle greeting stirred Knives, who was still covered in last nights sins, too exhausted to even make it to the shower.
"Is he okay?" Vash asked quietly, noticing the many tear stains on Knives cheeks.
"Oh he's fine," You waved off Vash's concern, pouring warm water into a mug. "He was very well behaved last night, the most obedient he's ever been actually!"
Wings sprouted from Knives instantly, startling the younger twin. Knives face was bright red, hidden by the pillow that covered his face as the feathers quivered in excitement at the praise. His body reacting eagerly as if you'd take him then and there, disregarding his stupid brother's presence.
"You might have to carry him home though, he's exhausted from helping me move some furniture around." You lied, sliding some freshly made tea towards the Humanoid Typhoon, blowing to cool your own drink.
"But everything looks the same? What furniture did you move?" Vash asked innocently, warming his hand on the mug.
You quirked a brow at Knives, catching his gaze sent a shiver along his spine. "Just rearranged a few things in my room."
An Archive of Our Own, a project of the
Organization for Transformative Works
Under 18 DNI 🥵🥵🥵🥵🌶🌶🌶🌶
Vash wants to let you stay with him and his older brother. But what happens to the twins when they are around a fertile woman for a long period of time? They are strong, but your advances may prove it difficult for them to resist....there is dp 👀
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