Undertale Sans Headcanons: What soul trait they personally like and/or find attractive
Sans included in this post: Sans (Undertale), Red (Underfell), Blue (Underswap), Hop (Dancetale), Nova (Outertale), Dust (Dusttale), Axe (Horrortale)
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Undertale - Sans
Perseverance
This is a man that likes to live peacefully. He's laid back and takes things slow. Some might say that he's a little too slow. Stagnant.
While Underground, he lost his will. He didn't have much purpose beyond taking care of his brother because he saw no point in having a purpose. He couldn't push through anymore.
He's familiar with soul traits. He used to work with someone who studied them intensely. And Alphys knows more about them than any other person in the world, nevermind the Underground.
He knows about Perseverance. Pushing through and moving on despite the setbacks and the hardships. It's resilience in it's truest form, and to Sans, it's a complete pipe dream. Yet, there are people out there who are defined by it.
They've gone through their own hardships and maybe they ended up as disheartened as he is. But they're still here, despite everything, and they carry on. They wake up in the morning. They may not get out of bed, or even open their eyes, but they still pushed through and woke up. He finds that more admirable than anything else in the world.
Underfell - Red
Kindness
When you come from a world that whole heartedly believes in 'kill or be killed', any form of kindness is seen as alien and more importantly, weak.
Back in the Underground, Red would have laughed at the concept of being kind. It's stupid, it's weak, and it's what gets people killed. He cannot afford to give or accept kindness.
Plus, he has a reputation to uphold.
It'll take a while but he can change his mind. He'll start to wonder how someone can afford to be kind. How can someone be so selfless and good that it becomes the core of who they are? And to be able to stand by that goodness, to be able to stay true to who they are despite the warped world around them?
A Kindness soul is physical evidence of a concept so foreign, he didn't think it was even possible. Yet it's staring at him in the eyes with a nice smile and a pretty face. Maybe being kind isn't so bad.
Underswap - Blue
Blue likes all soul traits.
He doesn't have a single preference because there's something in each trait he finds admirable.
Instead of liking a single trait, he likes that humans have traits at all. Monster souls don't have defining traits. They're made up of love, hope, and compassion which manifests as white. It's not possible for them to be any other colour (unless they absorb a human soul).
Humans on the other hand have an entire rainbow of colours. They are able to have a characteristic so strong, it literally makes them who they are. And he loves discovering what makes people, well, people.
Meeting humans is like a puzzle. The more you get to know them, the more you find out what makes them so unique. You get close with them and before they know it, they're best friends with the most magnificent skeleton in the universe.
It gives him two of the best feelings in the world: solving a puzzle and making a friend.
Dancetale - Hop
Integrity
The act of dancing is the purest form a monster can take. While the body is the physical form of a monster, dancing is the manifestation of the self. It is them, wholly and purely them. As such, it's not possible for a monster to lie about who they are. They can supress it, they can hide it, but they cannot lie.
Humans on the other hand have no such manifestation. Some can dance but it's not a sacred, integral part of your being. It's considered nothing more than a talent.
So if humans don't have dancing, how do they even know who they are? The answer is, they don't.
But some try. Some find themselves and try their damndest to protect that. They want to be themselves, wholly and purely. And it manifests into a pure soul. Being themself is who they are.
Hop wants to be like that one day. Maybe someone can show him how.
Outertale - Nova
Bravery
People often define bravery and courage as the ability to act even when you're scared. It's more than that. It's knowing that something is going to hurt and doing it anyway. It's trusting that you will be okay in the end.
It's being able to sit out and look at the stars, knowing there's a chance you'll never touch the ground again, yet cherishing the sight before you.
Being out in space for so long, he knows how terrifying the unknown can be. Out here, one wrong move and you're dead faster then you can blink.
Yet here humans are, doing stupid things anyway because they're curious. Curiosity is one hell of a drug and he'd be lying if he said he wasn't addicted.
He wants to know everything. He wants to know the science behind it all and the only way to do that is going out there and discovering it for himself.
And having someone by his side who'd go through hell and high water to discover it with him? Heh, he certainly can't complain about that.
Dusttale - Dust
Patience and Integrity
He likes these two better simply because the colour is so distinct compared to the others.
I headcanon Dust as colourblind due to his high LV. Don't ask me how that works, I just think it's neat.
As such, he sees red, green, yellow, and orange as similar/the same colours. Since he doesn't really like red anymore due to it reminding him so much of the player, any other colours that look similar are forever ruined.
Even if you told him that your soul is green, all he'd be able to see is the player. It'd take him a long time to trust you, and to repress his urge to kill you upon seeing your soul.
The only colours that are relatively safe are cyan, blue, and purple. I say relatively because while he can distinguish purple from red, the trait it represents reminds him of Determination.
Determination allows people to live on despite death, to push on and try again. Perseverance is the ability to push through despite the circumstances. They're too similar for Dust's comfort.
Integrity is fine though. It's a nice blue colour that he can't mistake for anything else and the trait itself is also something he quite likes. Staying true to yourself and standing by your principles is something he used to encourage.
He used to judge people on their principles so seeing someone he knows he can trust to not break them is a breath of fresh air.
Patience is probably the safest of the three. He easily mistakes cyan for white which remind him of monster souls. While he does have bad memories of seeing white souls, courtesy of wiping out the Underground thousands of times, he has faint memories of happy times with his brother. White has positive connotations to him. And if he were to meet a good human with a Patience soul, he can start to associate them with white as well.
Patience, he feels, is generally a good trait to have because he knows they won't mind if it takes years to get to know him. There's a chance they'll stick around because that's just what they do. They wait.
Horrortale - Axe
Kindness
Axe is a simple man. Decency was not something that was commonly practiced in the Underground so any form of politeness or general thoughtfulness makes him fold like a lawn chair.
Plus, Kindness is easier to manipulate than the other traits. It was the easiest way of doing what he needed to, whether that was to lure a human in, make them feel relaxed and catch them off-guard, or straight up toy with them until he's bored.
But when he doesn't need to do that anymore? When his brother doesn't need food or he doesn't need entertainment? When the Underground is safe on the surface with access to all the food and fun they could possibly want?
It makes him feel odd.
There are people out there that look at him, see the giant hole in his skull, the unnerving red eye, the bloodstained bones, the creepy grin, and still decide to hold out their hand and introduce themselves with the biggest smile on their face.
They tell him they thought of him the other day, they invite him to hang out with their friends, they pay for his food when they get take-out. And they do it not because they have to or because they want something from him.
They do it because they're kind.
He appreciates that more than they'll ever know.
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hhuuurrgh, san s undertable............ share your thoughts, tell me which boy you liked best, rant lovingly to me about the skelemans.
Don't need to ask how you found his hoodie. Just say he took it off while doing something and deciding to wear it. He'd been looking for it before seeing you standing there with his hoodie on. That hoodie means so much to him and seeing his partner in it made his soul skip a beat. “didn’t think ya’d wanna wear… y’know. somethin’ of mine.” he'd say quietly. He's bashful about it but would quickly recover with a pun. "or maybe... you're just trying to hood-wink me into thinking you're cold." Then he would be super sweet about it like how he is with a lot of things in the relationship. “if ya get cold, lemme know. hoodie rental includes one free skeleton heater.”
Red:
This poor skeleton. He wasn't suspecting it at all. When he sees you wearing his hoodie he freezes in place. "...that's mine" he'd tell you. 100% this skeleton will say he wants his hoodie back all the time. 'Please sweetheart don't listen to him. Keep it on he loves it on you. I swear if you give it back to him inside, he will be a sad skeleton but not show it on the outside.' A skeleton who will think that once you wear his hoodie that you claimed him fully and he is yours forever too. Makes sure his coat smells more like him before you wear it to make sure no other monsters touch you. Stake his own claim.
Stretch:
Stretch loves it when he finds you in his hoodie. Whether it be too big on you or fits just fine. He will tease you endlessly as you were wearing his hoodie. “comes with free cuddles, if you're wonderin’. Hoodie rules.” Of course, you have to give into him when he says something like that. You're his new favorite pillow when you wear his hoodie. His long lanky form laying against yours. His skull nuzzling against your chest. Please run your hand over his skull while he lays against you. He will fall asleep in minutes.
Bear:
One skeleton who really doesn't understand why of anything you'd want to wear his hoodie. He didn't hate it was just confused. “...didn’t… think you’d like somethin’ that beat-up.” He would get closer to you. “been through… a lot, y’know?” If you told him that his hoodie was nice and warm despite everything it's been through he'd smile. He could feel something melt inside him. If you're sitting down, he'd sit next to you. “…it suits ya,” he mutters. “better’n it ever suited me.” If you try to tell him that it's his hoodie and it always looks better on him than you he'd shake his head. "...nah... ya can keep wearin’ it. i… like seein’ ya in it.”
Nova:
Kinda acts similar to Sans. It would be early in the morning when he's in the middle of a yawn and see you in his hoodie. “guess ya, uh… raided my closet, huh?” He loves it on you. Like many of the others please don't take it off. “looks better on you anyway… not that, uh… that’s hard.” "Nova this hoodie literally matches you... can't look better on me if it's made for you" you'd try to tell him. All of them would say that you look in it better than him. He would smile softly seeing you in his hoodie. God, he loved you so much and this made his love deeper.
Rus:
Once he sees it on you it's like he blue-screened. “i didn’t think you’d… w-want to wear something of mine.” So nervous but loved the way you looked inside of it. Please don't take it off. Never take it off. He knows how much that jacket means to him but seeing you wear it is making his soul feel like its running in circles and constant fluttering. “does it— um— fit? i mean— of course it fits, it’s big, i just— i mean— i hope it’s not… uncomfortable or anything.” Trying so hard to not to explode as you tell him its warm and you like it. “you… like it? that’s… good. i don’t mind. i really… don’t mind.” His voice would soften into something fragile and earnest. “you can keep it on. i… kinda like seeing you in it.”
Astro takes reader to the observatory when their favorite planet is visible
Jogging up the spiral staircase, you call out to the top, you call out, “Knock knock! I got your transmission, space cadet. What did you wanna show me?”
The stars are out in full tonight. They’re out every night, actually – such are the wonders of extraterrestrial living, beyond the light pollution of the cityscape from your old life. While there’s a multitude of things you miss dearly from your time on terra, such as the smell of the salty wind, the tickle of grass on your skin, or the steadfast gravity that doesn’t rely on man/monstermade tech, you’d trade it all for the nightly view from your colony-sanctioned cot – which, you suppose, you technically did.
There’s no more weather, no torrential downpours or softly falling snow, no breeze to cool you from the summer heat. You miss the fresh, cold air that expanded your lungs, and the ease of communicating with just your vocal cords through the simple channel of atmospheric particles, without the need for tools to help carry your voice through the desolate vacuum of space. Mostly, you miss the color, the spectrum of everything from verdant greens to dusky violets to deep blues. Not that there’s no color out here, it’s just less… diversified. You find yourself getting sick of planets spanned in the same hue from pole to pole. But no, you firmly tell yourself whenever you doubt your choice to leave, earthly comforts are nothing in comparison to the full scope of the universe right outside your door.
Nor can they compare to the newfound company you keep.
“took you long enough,” a voice from the platform answers, “i thought i’d have to star-t without ya.”
Rounding the last few steps, your lungs thankful for it, you catch Astro scribbling measurements into a notebook and giving the massive telescope microscopic nudges as he coaxes it into position.
“Hah, funny,” you deadpan. “We’d just have to call this whole thing quits and re-planet, I guess.”
“eh, we could probably scope out a different day for it.”
“I’m going to kick your ass-teroid if you don’t stop.”
“ouch. only if you say something nice in my orbit-uary.”
You hold up your hands in defeat (and a plea for the puns to end), and you sidle up beside him. “So, what is it? New planet? Satellite? Life? Aww, you named a comet after me, didn’t you?”
Astro shakes his head and taps the eyepiece with his pen. “nope, you gotta look to find out. hurry up, before it moves out of sight.”
Excited, you dip down to dive headfirst into the vague promise of something supposedly worth a surprise. But before you can press your eye into the lens, you stop, jaded from one too many practical jokes.
“Did you put paint on the eyepiece again?” you ask flatly.
Astro’s grin flattens to a startled grimace, which quickly bounces back up into its usual easy curve, albeit more forced at the edges. He pshaws, and sways his weight on his legs. “what makes you think i’d do that? i’m a monster, not a monster.”
You level him with a skeptical glare.
He clears his throat, and taps on his notebook with his pen. “oh, uh, look at that. measurements are off. gimme a sec, will ya?”
You gladly step out of the way and allow Astro to “unsmudge” the eyepiece by furiously scrubbing his sleeve over the glass.
When it’s deemed “recalculated,” you lower your head slowly, still fixing that suspicious look on him and giving him ample time to butt in to make any more last-second adjustments. When the eyepiece taps your cheekbone, you suppose you’ll just have to put an incredulous trickle of trust into him, like you usually do.
The image through the lens is blurred, a dark, fuzzy bloom of blue against the infinite inkiness of space.
“I think you missed a spot,” you snort, messing with the dials to try to bring it into focus. “What am I looking at, exactly?”
Astro bats your hand away, and you can hear the clicking of a dial as the image sharpens, then… blurs again.
“one, or two? three, or four?” Astro clicks the dials back and forth, his tone clinical as he mimics an optometrist’s vision test.
“You’re pushing it.”
He chuckles, giving it one more click to sharpen the image fully before retracting his hand and stuffing it in his pocket. “whatcha see?”
You’re about to make another dry comment about his antics when you really look at the shape in the viewport.
It’s a planet, one far off in the distance, so far that the image is still blurred at the edges as the telescope strains to pull it into focus. It’s dark, the side you’re viewing turned away from the sun, rendering the blues that span across it with a somber midnight depth. It’s marbled over with sweeping, swirling white clouds, curled around the sphere’s atmosphere like tendrils in a fragile embrace. And dotted across the landmasses, like veins of stars, are lights. Earth, sporting its own sea of constellations, only visible to those who left it behind. It takes your breath away and makes you ache with a dizzying homesickness.
“it’s neat, i thought,” Astro speaks up, timidly swinging his arms with his hands in his pockets. “maybe it’s a little silly to show it to someone who used to live there, but…”
You clear your throat. “No, no, it’s… it’s beautiful. From here.”
Adjusting the focus a little more, you can just barely make out the edges of the familiar continents, and the major cities where the lights glow the brightest.
“always wanted to visit. sit on a beach, get a tan, drink a mai tai with a little umbrella, that sorta thing.”
You look up from the eyepiece, grinning. “Then let’s go.”
“yeah? we’re making vacation plans? for a distant planet?”
“Sure,” you shrug, your mind already buzzing with an itinerary sure to knock his star-patterned socks off. “You ever heard of a county fair?”
Can I get how underlust and outertale sans would ask a human crush out?
Underlust Sans:
Mauve is actually surprisingly smooth when it comes to asking others out!... or at least, that's what he had thought. When it comes to you, he actually gets quite flustered. He had to take his time to figure out how he wanted to ask you out, and may or may not had to ask his brother for advice. In the end, he would take you to a more secluded area, one that had a romantic atmosphere, which he may or may not have had something to do with it, before he actually asks you out, taking your hands into his own. He is surprised, yet relieved, when you tell him the feelings are mutual
Outertale Sans:
Altair was a little nervous about asking you out, but with some encouragement from his brother and a few others, he figured he would just go for it. He had took you around to a few of your favorite places before taking you to a more secluded area, one where the stars shone their brightest, before he confessed his feelings. When you told him you felt the same way, he was so ecstatic to hear this as he pulled you into a tight hug, not letting you go for a while
If you had to pick, which of your skeleboys would be okay to be in a poly relationship?
Oooh! This is an interesting ask! As someone who's polyamorous hope I did alright! I hope you all have a lovely day/night!
(Undertale Sans) Salix: He doesn't mind sharing his S/O. He's too lazy to throw a fit about it. As long as he gets some quality time with his S/O, he's chill with it. But sometimes, he thinks he can't provide certain things for his S/O. For example, I headcanon him as asexual, so he isn't comfortable with sex, like, at all. And so, he pities himself about it. Does his S/O ever find out his true feelings? That's up for interpretation.
(Underlust Sans) Hearts: He wants to know everything about his S/O's partner! He'll even ask them out for dinner, too! Knowing him, he'd probably fall hard for his S/O's partner, so he'll likely end up dating them, too.
(Outertale Sans) Orin: Like Salix, he doesn't care either. He isn't as excited as Hearts is, though. He feels incredibly self-conscious about his S/O's partner. The poor boy doesn't think he's enough! Luckily for him, his S/O comforts him until he feels better.
Hello, may I request UnderLust, DanceTale and OuterTale Brothers with if S/O with ADHD or artist S/O if you're not comfortable with the first one? İf you can't do them/Had to remove some of them, that's perfectly fine! Still, thank you! Please eat and sleep well! Don't forget to drink water as well!
Also may I ask, do you have a anon list? Or are you accepting anons? Like 🎨 anon?? I'm just curious 👀 okay but if you do accept anons may I be 🎨 anon?
I'm gonna have to take out the dancetale brothers because I don't know much about them, sorry-
I don't have an anon list yet, but! you're now officially 🎨 anon! (thank you, and please remember to take care of yourself too!! :) )
Outertale And Underlust Brothers With A S/O That Has ADHD, And Is An Artist
-Outertale-
Cosmo:
Cosmo doesn't know too much about ADHD, so he'll likely end up asking you to explain it, and the symptoms that you specifically have
He'll listen patiently as you explain, and as you do it starts to make more an more sense to him
He didn't realize that some of those things you did were symptoms of it, but it makes sense to him now!
If he sees that your hyperfixating on something for to long, whether it be drawing, or really anything, he'll remind you to take a break
And if you don't want to, Cosmo will probably end up just dragging you away from it for cuddles
But speaking of art, he thinks that what you do is amazing!
He's quite the drawer himself, so he'll spend hours with you sketching and talking with you
And if you can't pay attention to talking to him and drawing at the same time, then he's happy to just sit there with you
It's one of his favorite things to do with you, aside from sitting out on a blanket and stargazing
Star:
I personally see all Papyruses as being autistic, so even if his experiences aren't exact, he still knows some of the struggle
He'll gladly listen to you if you want to explain your own experiences with him, and he'll share some of his own with you as well
Star will do what he can to help you cope, it doesn't matter if it hyperactivity, bad attention span, executive dysfunction, or even just forgetting to do things during the day
He'll remind you to eat, drink water, and he'll come and find you during the day (if he's not already with you) to take breaks
He thinks your art is amazing!
Star will most likely end up wanting to frame some of you pieces, or at least put them on the fridge
(He also might hint at him wanting you to draw him, but he won't say it outright)
If you do end up drawing him though, he'll be ecstatic!
He'll tell you how much of an amazing artist you are, and how cool it is that you can create things like that
It doesn't matter what skill level you are at drawing, he'll absolutely love it
-Underlust-
Lust:
Like Cosmo, he doesn't know very much about ADHD, but he's going to ask you a lot of questions about it
He's just trying to understand it the best he can, he doesn't mean to pry about it
Once he understands it a bit more, he'll go and do some of his own research to see how he can help you, and he'll do what he can to
Lust will remind you to take breaks throughout the day, to eat, or really anything you forget to do
Also, he thinks your art is so cool!
Expect him to jokingly ask you to draw him like one of your French girls, he can't pass up the opportunity for that joke
He really likes to sit and cuddle with you while you draw, not only does he get to hold you, but he also gets to see your process of how you make things
Lust will probably be complementing you the entire time he's with you and can see you making art, and he means everything he says
(seeing you blush is just another plus side to it)
Lilac:
Honestly, Lilac probably already knew that you had something like ADHD, he's pretty good at reading people
But he'll listen while you tell him, and he'll ask you what your experiences with it are
After that he'll be sure to try to help you the best he can with it!
He'll set timers throughout the day to remind you to eat, drink water, and other stuff like that
He'll also try to organize your art supplies if you have a hard time keeping track of them
He'll get small shelves to put your brushes, markers, pens, and pencils on so they're easier to find, and he'll remind you to put them back in their places once you're done
Lilac will eventually end up asking you to teach him how to draw, and he'll spend hours at a time practicing it with you!
He really likes the time the two of you can spend together drawing, and it gives him something to do
He thinks the things you make are really cool, and he eventually wants to make things like it too!
