Hiii, could you perhaps do SFW and NSFW HC for castor (Dioscuri) in fgo? Please and thank you
Warnings: Sex, Sexual Situations, Rough Sex, Mild Voice Kink
It’s hard to tell Castor is interested in you. At least as far as you can tell. He’s still short and doesn’t want to ‘waste his time’ with humans. It takes someone, either Mash or Da Vinci, to point out he’s always hovering and watching you. You assumed it was slightly hostile, but no, he defends you first when someone starts to give you issues. It’s sweet, if a little convoluted, but you don’t hate it.
Most people won’t know you’re in a relationship unless you tell them. Castor isn’t into public displays of affection, and that changes slowly, at a snail’s pace. Castor might hang around you, sure, but that doesn’t mean anything on the surface. He’s going to have to be more affectionate to get other people to back off. The first time he’s sweet to you in front of others, your brain short circuits and it’s his new favorite thing. Don’t expect him to leave you alone now, not when you’re so cute.
It takes him a bit to get comfortable with physical intimacy. He’s attracted to you, but it’s like not using a muscle. He never had a high sex drive before, but with you the flood gates have opened. Once Castor registers he likes you and likes sex, he’s going to be all over you. He thinks he’s subtle and he’s really, really not. Take pity on him and lead him to the bedroom before he embarrasses himself in front of his sister.
He prefers rougher sex, pushing you against a wall or pinning you to bed. Castor wants you to fall apart on his cock, moaning into his mouth as he pounds into you. Your sounds are what he craves; if you’re a quieter lover than it’s his personal mission to get you to cry out. Something about your voice drives him crazy, from your laughter to your sighs. The louder you are, the better. That way he knows he’s doing a good job and everyone knows you’re taken.
Tags: Obsessive thoughts, little manhandling, little choking, everything in moderation.
Me, during the JP livestream: Dio-who?
Me, 5 lostbelts and 2 fics later: So I love them now I guess???
You blink, you really didn’t notice how tall the twins were. Honestly in Olympus you had other things to worry about than the height of Dioscori, like Castor threatening to pull your spine from your neck when he held you hostage.
Maybe you should have noticed it then, how tall the man behind you was.
You always have been very aware of the emotions and expressions of others, so it isn't hard to notice the scowl Castor never leaves his lips. He stands tall, like an unmoving and impenetrable wall.
Yet Pollux is different, while she kept her sadistic streak, she warmed up quickly. So while Dioscori was one servant consistent of two souls, you could not help but to gravitate more towards Pollux.
Like Castor, Pollux is tall, she stands tall as she protects you. She feels warm as Pollux ruffles your hair as she laughs with you. She stands between you and anything she deems a threat to you.
Of course your favoritism doesn't go unnoticed by either of the twins. While Pollux is very happy to be in your favor, she notices that her brother, for all his 'I dislike humans, so I have no need for their affections' bravado, is very disgruntled with the current situation.
Something he only has himself to blame for in Pollux's opinion.
Castor in turn is very annoyed. It annoys Castor how easily you wear down Pollux defenses. How Pollux dotes on you, easily falling in the role of divine spirit, of a protector. Yet Castor feels the burn of Avenger class more heavily than a Saber. He couldn’t forget how you slaughtered the gods in Olympus, a human, a god killer.
But he also remembers how cruel they had been. The lives they took, blinded by their hatred for humans. How he was so close to taking your life, your delicate neck in his hands.
Yet you were unfazed when they answered your call for aid. You stand there unafraid and you welcome them with a smile, their sins against humanity forgiven just like that.
He hates you for it. Hates how he felt a sense of relief when you smiled at the both of them, welcoming them home as if they were old friends, not divine servants to be used.
"Why are you being so obtuse?" Pollux asks and Castor jerks out of his negative spiral. He looks at his sister before the familiar scowl settles on his features. He is not being obtuse, you are a difficult human.
Pollux raises a brown, observing her twin, before a sly smile creeps upon her lips.
"You know, you look far more handsome without that awful scowl brother…" Pollux is pleased that Castor's scoff is rooted more in embarrassment than annoyance. Her sharp eyes never leave her brother as the following words leave her lips.
"I bet Master would think so too"
Castor sputters and Pollux chuckles, very aware of the flustered look on her brother's face.
"What makes you think I would ever want that!" Castor grinds out, trying and failing to ignore the heat that crept in his neck and how his heart sped up by that ridiculous thought Pollux put into his head.
Castor, having enough of Pollux teasing and prying, leaves the room with a grumble.
"Are you going to see our favorite human?" Pollux calls out right before the automatic door slides shut behind Castor.
His sister sounds a little bit too pleased with herself Castor notes before he sighs.
Like it wasn't enough that Pollux absolutely dotes on you, from headpats to casually showing you affection in public. It feels like, with you favoring Pollux over him, there is a growing distance between him and his sister. The thought alone has his heart clenching and his hatred for humans, for you burning a little brighter.
Castor would think he would be happy, leaving his sister to deal with you yet every time you grow closer to Pollux there is a nasty emotion bubbling in his gut. Wishing, for a brief moment, you would turn towards him instead of his sister. It is absurd, that he would want for you to look at him the same way as you look towards Pollux.
He does not want nor need that.
Castor, again, so far away in his own thoughts that he doesn’t notice the cause of his annoyance to be right in front of him until he literally runs into you while rounding another corner.
You, at that time, manage not to fall flat on your face. As you stabilize yourself, you mumble a quick apology, not really meaning it because you felt like if someone can't pay attention to walking that servant in question should not be walking at all.
Said servant in question just huffs and you chuckle a bit nervously before asking;
"Isn't Pollux with you?"
Castor really shouldn't feel so offended by your question. Castor feels his hackles rise, the disgusting feeling at the pit of his stomach growing over the fact that you ask about his sister while he is right here.
"It is just rare to see one of you guys without the other'' You offer as an explanation, wondering briefly if Castor is annoyed as soons as he sees you or if it was just his default mood. Honestly if he hated humans so much, why did both him and Pollux answer the summon?
You look to the side briefly, mulling the thought that Pollux dragged the Avenger kicking and screaming towards the Wandering Sea.
In that brief moment of distraction Castor strikes. First you ask about his sister and then you couldn’t even look him in the eye? Your transgressions against him are him just stacking up and without his dear sister, to reign him in Castor just had enough with you plaguing his thoughts and sight.
Your breath leaves your lungs roughly as you are forced against the wall, yet you find taking in a breath is harder than you think.
Castor's hand presses against your throat. Not hard enough to be dangerous, just enough to make breathing a little harder. His lips are twisted in a scowl and his eyes are blazing. Your hands quickly find their way to the arm pinning against the wall.
"Castor?" You breathe out, the events of Olympus fresh in your mind again. You fingers rest against the golden armor on Castors arm. You feel the pressure against your throat increase a little as does the burn of your command seals on your hand.
Yet you never utter a command.
The avenger stands tall, the light of the hallway seems to disappear behind him. He could force you against the wall with his height and presence alone. The hand on your neck is unnecessary, really.
"You are the type of human I hate most of all" Castor sneers as he leans closer to you, only stopping when he is a mere breath away. Something in his stomach churns as he sees your eyes widen for a fraction at his confession.
Yes, you truly are. Because you are the type he has grown fond of. Castor wants you to look at him as much as you do Pollux. Even more, he wants you to watch with those beautiful eyes yours as he razes everything down that stands in your way.
Even now you haven't called for aid, instead your eyes are searching his face for something. The Avenger wonders for what.
But did it matter?
It feels nice, your warm skin against his fingers and Castor flexes them against your neck. His scowl gives way for a smirk, he enjoys it immensely. To be the one you have your eyes on, even if it was for all the wrong reasons.
There is a shift in the tension as soon as Castor smirks. The rage finally gave way to the emotion and desire that fueled it.
You can see it in the Avenger face, sense it in how the energy changes around him. Castor doesn't look like he wants to annihilate you anymore, no, he wants to devour you.
You briefly wonder if that change in intention makes you safer or more in danger.
Castor is too close and the intensity of him causes you to feel the heat spread underneath the skin of your cheeks.
Aren't you pretty like this? Castor didn't think he could find anything pretty but as you are left to his mercy, your cheeks pink and mouth slightly open to draw quick breaths. He can’t help to find you very pretty.
"Why aren’t you doing anything?"
Castor is not sure what he wants you to do. Call for aid? No, not that. His other hand comes to rest at the side of your head and Castor peers down at you, absolutely delighted that he is that one that caused you to be in this state.
He feels there is a tension in the air, a wire that is pulled so tight, threatening to snap at any moment.
And you are the one grabs it and gives it a harsh tug. Answering his question at the same time as you drag him down that last inch forcing his lips on your own.
Castor's reaction is instant. The hand on your neck gives way and curls around the back of your neck instead, tilting your head up. Almost bullying his tongue into your already open mouth.
His other hand lands on your thigh, dragging it down slightly before grabbing it, forcing the limb up and aside so he can push himself even closer to you. So that you taste and feel what exactly you did to him.
Castor could devour you whole and as let out mewl against his lips. Eat all the words and sounds out of your mouth, map your body so he would know it better than anyone else.
"If you plan on going down this road I would suggest a more private setting, brother."
Castor groans and detaches his mouth from your own. Only tilting his head to give his sister an annoyed look. Yet Castor refuses to move, shielding your body with his own. Like he would show anyone that pretty face of yours.
The Saber only shrugs her shoulders, but she is happy that her brother is finally honest with himself. As she walks past the both of you she gives Castor a pat on the back, almost in a congratulatory manner.
"It is pretty commonly used hallway"
Is the only thing Pollux says as she rounds the corner and you can hear her smile in the tone of her voice.
Yet Castor pays Pollux's advice no mind as his hand on your leg moves upwards again, skirting around the edge of your skirt. Tilting his head downwards again and you don’t object as you meet the man halfway.
You fully intend to enjoy as much of this side of Castor and Castor finally had you how he wanted you. He wants to indulge in it a little longer.
Busy, you are always busy. If you weren’t preparing for a new lost belt, there are events you get roped into and not to mention everything that happens when a holidays comes around. Last but not least there are all the servants that call upon your last bit of free time.
Reading stories and playing with the younger servants. Playing mediator when a family drama ensues.
"Ah Dioscori!"
At the sound of your voice the twins stop their own conversation to look at you.
"Attached to hip as ever I see" you say with a smile, no malice behind your words, just a teasing lit.
Castor, as per usual, scowls "of course, we don't need anybody else, least of all humanity's last master." Even as you managed to max their trust towards you, Castor remained rather standoffish.
Pollux shakes her head at her brother. "Don’t mind him, do you need anything from us? We are always happy to lend a hand"
You shrugged. "It is alright, I know he means well.."
At your comment Castor sputters slightly before huffing causing you and Pollux to snicker.
"Anyway, I was wondering…" you start but before you finish your request a familiar voice calls you out.
Mash easily forces her way into the conversation, the twins stop listening as soon as you stop talking. Their pale blue eyes focusing on you.
How your lips twitch downward ever so slightly at the mention of another request. Before twisting upwards to a smile that doesn't quite reach your eyes.
You shift your weight from one foot to another, your gaze shifting from Mash to the twins. Noticing you had their full attention you open your mouth to something but snap it shut as Mash grabs your hand.
"We have to hurry senpai!" And Mash pulls you away from Dioscori.
Castor eyes narrows at that, the nerve of that demi servant. Firstly interrupting their time with you before rudely whisking you away.
You are his master, their master.
Pollux notes the change is her brother's demeanour and quickly calms him by grabbing his hand.
Before Mash and you round the corner, still find a moment to wave and smile at the twins.
Pollux returns your sentiment quickly and even Castor, before he even notices his own actions, raises his hand to wave.
Both of them notice that, even briefly, your smile reaches your eyes before you disappear behind the corner.
"Hmm Master is always so busy" Pollux mumbles as you get dragged away from the twins by your ever doting kouhai.
Not doting enough, in Pollux her opinion, as they could see fagitude clearly on your face and Castor clicks his tongue.
Pollux knows her brother shares her sentiment, they would do a much better job. You are burning the candle at both ends and it needs to stop, they need to make it stop.
Maybe it was the Avenger class of Castor, he is feeling awfully vengeful at everybody and everything just taking and taking every bit of your time but never giving you a moment to rest.
Castor grips his sisters hand more tightly before starting a brisk pace. Pollux doesn't say a word, knowing exactly what her brothers thoughs are. They are one and the same servant after all.
It was not hard to find you napping in an unusual place.
Castor scowls as Pollux pets your head. You are sleeping soundly while sitting behind a desk. Resting your head on your arms. The desk is scattered with papers and reports.
Was this the 'emergency' that demi servant had to drag you away from? The absolute audacity.
"Master looks so peaceful, right?" Pollux notes fingering some strands of your hair through her fingers.
Castor huffs but doesn't disagree with his sister. Pollux only smiles slyly.
"Don't be like that brother, I saw how you looked when that demi servant dragged our master away. You would have killed that girl on the spot but you knew it would only sadden our Master. "
Castor flushes, the tips of his ears turning red as his sister calls him out ruthlessly. He is glad you are sleeping, you would never let him hear the end of it.
"Well then, let's tuck master in"
Castor nods and hesitates. Pollux gives her brother an expectant look.
"Come on now, I know you are dying to princess carry our master to the bedroom."
With a roll of his eyes he manages to pick you up without waking you up. Acting like it is a chore, even before his dear sister.
Maybe it is because Pollux is his sister that he doesn’t want to give her the satisfaction that, like with her, you wormed your way into his heart.
Pollux holds her tongue as she sees her brother cradling you to his chest, his lips quirked up into a small smile. Deciding not to tease her brother about his obvious affection for you.
When they entered your room it was of no surprise that the demi servant was about to join them and Pollux blocked the way into the room.
As Mash opened her mouth to protest Pollux interrupted her, she wasn’t about to let that demi servant intrude a second time.
"I am sorry girl, but Master is exhausted at the moment. We would appreciate it if you could let her rest." Pollux spoke, Mash felt the underlying threat in the words of the Saber and Mash was about to protest but was again halted, this time by the brother.
"If you know what is good for you, you will leave Shielder. We like take care of Master, properly"
Castor is not above using a threatening tone, looking over his shoulder at the unwelcome servant at the door.
His eyes narrowed in a glare.
Mash swallows, but doesn't protest. Feeling hurt and guilty that she didn't notice your fagitude.
"Oh and could you let everyone else know to let up with all the demands? Or we might intervene and we won't be so kind"
They weren’t kind right now, but Mash only nods. It felt wrong to leave you with the twins but they outmatched her easily. Plus the twins had only your best interest at heart. Right?
So without further protest Mash left causing only further ire with the twins.
"What a horrible girl, when it doesn't suit her strength, she just disappears." Pollux huffs.
"It is to be expected from common humans" Castor sneers, sitting himself on the bed.
"So you finally admit that Master isn't a common human?" Pollux goads her brother and the Avenger stiffens and averts his gaze away from Pollux and to you.
"Then I guess it is up to us to protect and guide Master." Pollux concludes, back to her own cheerful demeanour.
You never put a lot of thought into why you suddenly had more free time or could have a proper night's sleep. Or why you found one or both twins hanging around you more often.
"Master"
Looking up from your tablet you smile as you see Castor and Pollux. The twins quickly take a place on either side of you on the couch. Pollux, as per usual more in your personal space and Caster just barely. Yet he never moves away as an over excited justle from Pollux pushes you closer to him.
It makes them happy to see that you don't look tired anymore. To see you smile and laugh in earnest again
