#💚💀🌙 your king (nightmare sans)

[skeletonh0e]

Can ignore if this is too dark but uh

Nightmare finding out his S/O had an extremely abusive ex? Again fine if you aren't down with that

Oof, time for some angst and some fluff. But more importantly some protective Nightmare content

Obvious tw for talk of domestic abuse & some ptsd, reader and the ex in this situation are both kept gender neutral. Also I guess tw for some minor manipulation (reminder Nightmare isn't the healthiest partner either)

Nightmare finds out about your last relationship

The thing about dating dear ole' Mare is that it's hard to hide most things from him

His whole thing is he can sense emotions, negative or otherwise

So even if he doesn't know, he knows something is up, you're very jumpy and there's this sense of fear around you whenever he so much as raises his voice

He's patient as he can be with it, a part of him naturally assuming these feelings are simply because he is....himself, that despite what you say a part of you is truly disgusted and terrified of him

A part of him almost doesn't blame you even if that sentiment still hurts coming from his partner of all people, most rightfully should be

When he does learn the truth though?

.....interesting

He's calm as you explain your former relationship and the things your ex did to you, like alarmingly so. You'd expect some form of anger, but no....he's calm.

Once you finish, he gently but lovingly pulls you into a tight embrace. Giving you all the reassurance you need

Dare I say, he's the perfect boyfriend in this situation. He'll let you cry, he'll soothe you, he's there to care for you and promising you'll never go through that again

It definitely becomes a night all about spoiling you

The moment you fall asleep though is when things take a turn

He gives his underlings a very important mission, your ex is retrieved that Night and then brought to his castle right to Nightmare

The things he does to that poor sucker

By the time he was done they were begging for death and even then he still didn't grant it just yet

No matter what happened though, there was no way your ex was getting out alive or if they did it might as well be a fate worst than death

Depending on the nature of your relationship and how well you'd take the news, he might relay what happened. Not going into every gorey detail but in a very "oh your last lover? I took care of them" :)

If you raise a fuss he'll downplay the issue or try to assure you that it was for the best, don't you trust him after all?

Regardless there is definitely a shift in how he treats you afterwards, not an extreme change bit but a change for sure

Gentler in his approach, more careful and somehow despite Nightmare already being known for a partner that's quite controlling more protective

Killer made the mistake of simply grabbing your shoulder a bit too roughly then Nightmare smacked him so hard he flew across the room

Nightmare is many things but he's a patient guy, so he'll be understanding as he can about most trauma and due to his unique skillset can usher away any bad dreams (won't guarantee the return of good dreams but still HE'S the only Nightmare you'll ever have to worry about)

If there's one thing you should never have a doubt about is that you're loved and more important that you're safe

And woe to the person that attempts to challenge that

[skeletonh0e]

Under his Spell

Similar to Fresh I noticed a STAGGERING lack of Nightmare smut so here I am yet again, plus I demand soft dom Nightmare. Fem Reader with she/her pronouns, AFAB anatomy. Implied that the reader and Nightmare are a thing already dating, but it's vague enough that you can interpret their relationship however. Hypnosis, power play, overstimulation, praise kink + minor degradation, some possessiveness, tentacles (obviously), minor size kink if you squint ig. Everything is consensual but due to the nature of hypno kinks there are some dub con elements so continue cautiously if that's not your thing. I wrote this at the spur of a moment so again apologies if there's more spelling errors than usual.

MINORS DNI

"You're certain you wish to do this?"

"Yes, c'mon, how many times do I have to tell you that I trust you?"

Another moment where Nightmare simply put, does not get you. No one in their right mind would put this much trust in him, he's not even sure if he trusts himself that much. Yet right now you might as well be putting out a steak on a silver platter to a very hungry wolf.

"Yes, but there is no going back once I start. You won't be able to say no." it's worded like a reprimand, squint and you miss maybe a hint of concern being shown for you. Your body endeared by it, but you knew better than to press it.

"I know. And. I. Trust. You." you assure, which while that statement was true you were honestly a bit intrigued by Nightmare's truly darker side. It was part of the reason it was so much fun to give him this level of control over you. "Don't tell me the great King of Negativity is being chicken."

"Ha, ha, ha, you know better than to mock me." a deep breath is taken, if all apprehensions are put aside. "Very well, ready then?"

You nod, "Always."

He grips your chin, it's firm enough to guide your face to keep your gaze directly focused on him but gentle enough you could break through it if you wanted to. Not that you did. "Keep your eyes on me," he instructed, that single cyan pupil starting to radiate a strange energy. His magic was always so strange to you, you couldn't even try to understand it, but damned if you didn't enjoy it's many perks.

It's hard to tell if it's simple the effects coming in full force or if the eye actually changes shape as it seems to shift into a delicious spiral. Your gaze is further fixating on it, waves of relaxation starting to hit your body.

"That's a good girl, submit." he assured, voice deliciously sweet right now.

And your utter submission he had.

Your eyes became hazy, your entire body slumping as all tension soon leaves your form. Any noisy thoughts that left your brain instantly shushed, only thing you could focus on what his eye and his voice.

"You make it so easy for me," he cooed, the sight of you like this was always an engaging one. The way your mind went dumb, the way you looked at him, and the utter power he had over you was something else entirely. Tentacles start to snake across your form, your body pushed back onto the nearby bed as he takes his time in groping you. Looming over you the entire time, your eyes never once leaving his own. "I couldn't ask for a better plaything, now, could I? No one would be this good for me."

It's always amusing how red your face gets, doesn't seem to better how deep of a trance you're put in or how many times you two do this. You always get flustered. You weren't really properly dressed to begin with, pajamas loosely clanged to your form and his tendrils make sure to quickly dispose of your shirt. A sharp gasp escaping you as your bottoms were quickly worked to be removed, one of those black inky things accidentally brushing over your folds.

"No underwear at all?" he asked, clearly amused as the bottoms are dragged down your legs. "Really were eager tonight, weren't you pet?"

God damn that little nickname (or pet name you guessed would be more appropriate), you feel your hips trembling.

"Answer me." his tone was still dotting, but firmer this time.

"Yes." you answer, truthfully while you were like this he could ask you to bark then you'd do it. But this was the truth, you wanted this tonight. You didn't want to think about anything else. You wanted to be his little fuck doll tonight.

Nightmare took good care of his toys too, even when playing rough.

"Good girl," he hummed, your reward for that. "Now, keep being good for me and spread your legs."

You comply, several of his tentacles still on you but not quite gripping you though if Nightmare changed his mind he could easily have all of them restrain you in seconds. Your back naturally arches, your legs moving to either side of the mattress.

"Come now, wider, I want to see all of you."

You tremble, but comply. Your thighs flexing a bit, you move to further arch your hips as well. Nightmare clearly pleased with the sight.

"There we are, good girl, my good girl," there's almost a growl in his voice, lord above he'd kill anyone who'd ever even get close to seeing you like this. The display is utterly divine, you completely helpless underneath him, your pretty pink wet cunt on full display, and the sheer amount of control he has nearly makes him drunk.

The things he could do to you, the way you'd only be able to lay back and take it, the fact you'd all enjoy it too. He's already hard, he ignored the feeling of his erection before but it was impossible to do so now.

Clothes are being undone, but he keeps talking.

"So wet, all wet for me, how long were you thinking about this?"

You tremble, body needy but your mind utterly compliance. Couldn't even touch yourself, not unless he ordered you to. You had to be a good girl and wait. "A-All day," you admit.

"All day?" his chuckle echoes through the room, "You desperate little thing, what exactly were you hoping for? My cock inside you? My tentacles inside you? Or maybe you wanted me to abuse that pretty mouth of yours?"

"All of it." you rasped out, "All of it, all of it, all of it," you repeated dumbly.

He makes a sound akin to a tsk, it would have embarrassed you if you weren't so utterly wrapped up in this trance right now. "My slutty little plaything, what am I going to do with you?"

It's a trick question, he has concocted several plans in his mind for tonight. It's unclear where it'll end but it'll start here for sure, you feel something hard press against your needy entrance. You know what it is. You know what's about to happen. And the way your insides twist with pure need.

That's when he whispers devilishly in your ear, "While I figure that out, what you're going to do is scream nice and loud for me. Don't you even think about holding back. Got?"

Sure, his servants and underlings might hear but honestly? Good. The one thing that should definitely come out of these sessions was the undeniable claim he had over you. How good he could pleasure you. How much control he had and would continue to have over you. His.

"Yes sir," you uttered out, never one to bother with overly formal titles but that went out the window when you were like this.

"Good girl." that was all the warning you got before he slammed into you full force. The tentacles no longer being lax in their hold as they clamp down on you, restraining your body not only preventing you from being able to squirm much but as well as raising you up in the air slightly.

The scream you make as your pussy is violently intruded is loud, painfully lewd sounding. He was big, not to the point that taking him was painful (your natural arousal prevented that for the most part anyway), but the way he stretched you out was always so intoxicating. Especially when he got all rough like this. Your pussy barely having time to adjust before the tentacles pulled you back then slammed you back down on his cock. Nightmare synchronizing his thrusts with the way you were repeatedly through down on his thick shaft.

Your mewls and moans are loud. Nightmare lets out a series of soft grunts, voice always managing to sound so composed even as he breaks you on his cock. "Fuuuuck you're always so nice and tight for me, perhaps I should keep you here? My personal pleasure toy to use whenever, wouldn't even have to bother keeping you restrained. Because-"

A series of particularly harsh thrusts come, one making you see stars as it perfectly hit your g-spot. You highly doubt it was coincidence either, Nightmare mapped out every inch of your body by now. "-you wouldn't be able to walk from everything I've done to you."

You definitely won't be able in the morning, a problem for another day. You cry out in pleasure, but your body's response keeps him all the confirmation that he needs. The way your little pussy clenches around him briefly at the mention of those words.

"Such a good girl," he purrs, he takes a moment, only a moment to rearrange himself before thrusting himself in again at the same rapid pace. This time hitting your g-spot maliciously with each hard thrust and the scream that it earns while you yell out his name is music to his non-existent ears. You writhe around, as much as you're allowed to like this. It was by instinct then by anything else, the intensity quickly overwhelming your senses as-

"Now, now, I said no holding back." It would have been frustrating how composed he remained if it also wasn't so fucking arousing. "Cum for me."

You're not given much of a choice, especially as you're slammed down and the way the head of cock hits your g-spot full force sends you over the edge. You scream out his name again, your orgasm hitting you violently. Your cunt attempts to milk Nightmare dry for all he's worth as he just keeps going, your fluids practically baptizing his shaft.

A groan does escape him, feeling you perfectly you squeeze him. It only encourages him to make you keep doing it, speed and intensity increasing. Tentacles still keep you in place but some taking stride to grope you. Nightmare's hand going to pinch your clit as he keeps his movements up.

"Again," he demands, the reckless abandon as his thrusts being further empathized by just how oversensitive it is. Not even being given a chance to recover, the only thing you can do is whine. "Good little toys do as their told and I want you to cum again, you will cum again."

And you do. The words, his thrusts, his movements, you scream again as another orgasm rocks through you. You can swear it feels like the room is staring to spin and it's an utterly amazing feeling.

"That's it, just like that, that's it, good girl. My good little cocksleeve, fuck-" he's not gonna last long if he keeps this up. Not that he plans to stop this at one round, far from that. However, he wants to full you cum on his cock one more time before he does. "Who do you belong to?"

"Y-You."

"Stop holding back, don't make me tell you again. Say it, who do you belong to?"

"YOU!" you scream.

"Say my name."

"NIGHTMARE! I BELONG TO YOU NIGHTMARE! I-"

There's a surprisingly low sounding moan as you cum against, especially as a near feral growls erupts out of Nightmare as he finishes inside you. The fingers pinching your cilt nearly painful as he prolongs the feeling, his hips giving a few sputtering thrusts both to make sure he gives you every last drop and fuck his own seed deeper into you.

It takes him a moment before he speaks again, instead opting to simply play with your clit. No longer pinching it, but instead slowly rolling his thumb over it. You're so overstimulated and lost in the pleasure you might just cum a fourth time from the simple movements. But he doesn't you to, not just yet anyway.

And your body has to comply.

He stops and pulls out, his tentacles shifting you so that your chest is pressed right onto the bed beneath you and your ass is in the air right on display for him. The entity giving it as a hard smack as he does so, it stings and is sure to leave a mark.

"Hope you didn't think you'd get off so easily pet,"

You didn't. You actually hoped it didn't. But you simply whimper pathetically underneath him, as you feel him lining up with your entrance again. Some of his cum trickling down your tights, hands firmly on your ass. It's unclear whether he plans to insert anything in there or simply smack then watch it bounce as he rails into it again. Doesn't matter, not up to you right now anyway.

"Ready?" he knows the answer, doesn't change the fact he loves hearing your response.

"Always."

[skeletonh0e]

May we get some romantic headcanons or headcanons you have in general for Killer, Dust and Nightmare?

Of course, the bad boys need some love. Gender neutral pre-usual and tw for toxicity, reminder none of the bad sans gang are the healthiest partners out there. It doesn't border into outright abusive territory but yeah

Killer Sans, Dust Sans & Nightmare Sans x Reader

Killer Sans:

This man is a shithead to everyone and that remains true especially when you're dating him

He's very flirty and constantly making dumb jokes, some are actually funny some are just annoying

It really do be just dating a normal Sans but worse sometimes

Weirdly clingy in a very obtuse way

Like he'll be gone for three days straight without a word to the point you half suspect he's DEAD but then you wake up one night to him literally CLINGING onto just staring like the creepy mofo he is

He wants attention now (don't question why he's covered in blood he wuuuuves you)

Very yandere-ish sometimes, he'll lowkey be stalking you and you might not even know unless he decides to reveal himself

Speaking of will kill for you, regardless of if you want him to or not, he's uh....very jealous and kind of violent if you haven't noticed

Kind of struggles with boundaries sometimes so you're gonna have to be firm about when certain things just aren't cool for you

He has his sweet side of course, he's all for praising you, he's extremely snuggly, and honestly he'll probably get you nearly anything you ask for

....might not be through the most legal of means but he will get it!

Also a PDA fiend so be careful

A big case of "does not know how to shut the fuck up" so there's plenty of teasing to be had and any arguments can easily escalate

Doesn't help that he clearly gets a kick out of annoying you

Never be afraid to return his energy though he likes some back and forth

Dust Sans:

This man? This man right here? A mess.

He don't even know how he got into this relationship and he don't even know why you want him

How does one....be a good boyfriend?

I can't stress how taken off guard he is by acts of affection, please be patient with him

Speaking of he does frequently suffer from hallucinations still so yeah patience and understanding is needed

He isn't as prone to violent outbursts as some of the other evil Sanses but that's not to say they don't ever happen and you'll need to be careful. You're not safe during these breakdowns

He'll feel fucking awful for hurting you and makeup for it somehow but yeah

Not good at expressing feelings verbally, acts of service are definitely his love language

Certain tasks and chores are just done for you, occasionally there'll be some take out in your kitchen from your favorite place or maybe an item you like in your bedroom

Have to ease into physical touch cuz again all this is new to him but once you both settle into a grove all for it

Tends to just....glomp onto you occasionally, either he's fucking tired or having a real bad day

Will also tug on your sleeve or clothes when he wants your attention

Its surprisingly cute given how intimating he generally is

Very protective, like dating any Sans gives you scary dog privileges but it's especially true in this case. He's just hovering over you and glaring at anyone that might pose a potential threat

Nightmare Sans:

Better than the other two though make no mistake he has his own issues

Honestly whether you're his friend, romantic partner or even just some person he knows...it's hard to get this guy to lighten up

And he's definitely very....controlling

Frequently tells you when and what to eat, what to wear, enforces a certain schedule and there's a certain vibe that he's not really asking

Cuz he isn't

He means well, he wants you to be healthy and protected which you are indeed protected. You are cared for. You'll never be lacking in anything and anyone that dares to challenge that is gonna suffer

Honestly he's very much a secret romantic at heart, his compliments are very sweet and endearing, dates are always surprisingly tranquil, and there's always a level of thoughtfulness toward all of it

Definitely likes pet names such as : beloved, dear, etc. Also just straight up calls you "mine" sometimes

Not big on PDA, generally keeps that stuff behind closed doors and even then he kinda doesn't like to be surprised by it

Prefers to initiate that stuff himself, but he's never going to say no when you do it but never hurts to ask first

Speaking of he has the worst habit of using his tentacles to just.....snatch his partners and walk away with them or haul them around

Sometimes he doesn't even seem to realize he's doing it and even if they don't like you up they tend to just idly wrap around you

[skeletonh0e]

I tried to restraint myself but unfortunately, I am weak

Killer, Nightmare and Dust have been added to our rosters! And are now open for requests!

[skeletonh0e]

Nightmare: Why. Can't. You. Be. Normal!?

Me, munching on his tentacles like ramen: Nom nom nom nom

[skeletonh0e]

🌙 Nightmare Sans Masterlist 💚

Find the list for the other Sanses here!

💀 = Group post / multiple Sanses

💚 = Oneshot / Drabble

💬 = Headcanon(s)

🔞 = NSFW

💬 | He finds out about your abusive ex (Gender neutral)

💀💬 | He's Jealous (Gender Neutral)

💀💬 | The Boys vs the Weather (Gender neutral)

💀💬 | S/O that wears collars (Gender Neutral)

💀💬 | General Romance Headcanons (Gender Neutral)

💚🔞 | Under his Spell (Fem Reader, AFAB anatomy)

💀💚🔞 | Darling, just Start the Chase; Chapter 1 (Fem Reader, Bad Sans Gang)

💀💚🔞 | Darling, just Start the Chase; Chapter 2 (Fem Reader, Bad Sans Gang)

💀💬🔞 | Breeding Kink? (Gender neutral, AFAB Anatomy)

[skeletonh0e]

MASTERLIST GUIDE

Alright blogs been up for a bit and I've got a decent amount of posts let's make navigating it a bit better (if you're reading this when it's instantly posted links will be added later)

Classic Sans Masterlist

Underswap Sans Masterlist

Underfell Sans Masterlist

Horrortale Sans Masterlist

Underlust Sans Masterlist

Fresh Sans Masterlist

Dusttale Sans Masterlist

Nightmare Sans Masterlist

Killer Sans Masterlist

Nicknames (used when there are multiple sanses are present): UT Sans = Classic, US Sans = Blue/Blueberry, UF Sans = Red/Fell, HT Sans = Axe/Horror, UL Sans = Heart/Ace, Fresh = Fresh (obvs), Killer Sans = Killer/Blade, Nightmare Sans = Nightmare/Night, Dust Sans = Dust/Dusty

Tags for the boys (all posts will be tagged "insert sans x reader" but these will include other posts such as incorrect posts, art, and gen headcanons that aren't shippy)

🤍💀🎙 your comedian (classic sans)

💙💀🌮 your magnificent hero (underswap sans)

❤️💀💢 your guard dog (underfell sans)

💔💀🪓 your monster (horrortale sans)

💜💀💋 your hedonist (underlust sans)

💖💀🎊 your cool lover (fresh sans)

🩶💀🪦 your protector (dust sans)

💚💀🌙 your king (nightmare sans)

♥️💀🔪 your hunter (killer sans)

💀 the boys (group post) i.e features all if not most of them

💀 bad boys bad boys what chu you gonna do when they come for you? (bad sans gang) i.e Nightmare, Killer, Horror, & Dust

🔞 the bone zone ( nsfw content, pls block this tag if you're a minor or don't wanna see that stuff at all)

Yuri speaks 🩵 (any posts where i, the mun just ramble)