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Get It On Your Chest, Not Off (Sans/Trans Female Reader)
“hey. hey, hun. hey.”
“...Mmmmrfff… Sans?”
“get up. we gotta get goin’.”
“You’re… *yawn*… outta bed before me? I dunno if that’s ever happened before…”
It’s true; your morning routine is giving Sans a smooch on the cheekbone that he’ll sleep right through as you pull out of bed. Today, he’s already up, and has his hoodie and slippers on.
“probably not. ya might be dead tired, but you’re not seein’ a zombie.”
“Heh, I’d… I’d sure hope not. What’s up?”
“you’ll see soon. just get up. trust me.”
“...O-Ok.”
Playing along with it, you sit up, give your arms a big stretch, and slowly step out of bed.
“Let me just throw my outfit on first, and-”
“don’t.”
“...Don’t? I already picked it out last night.”
“you won’t want it where we’re goin’. trust me.”
“You’re… you’re being kinda weird. You know how much those skirts have done for me.”
“and I wouldn’t drag ya along to something you won’t be happy with. c’mon, what ya got’ll do just fine.”
You’re only wearing an old white t-shirt and some shorts, but it sounds like that’s how Sans wants you to be. It’s weird; ever since you opened up to him a few months ago about your gender not aligning with your male body, he’s done everything he can to help out and help you know you’re an amazing girlfriend, even if the appearance doesn’t match up with the words. He’s been an audience for plenty of outfits that you’ve felt much more like you in, plays around with the bit of longer hair growth you’ve managed, and when you took your first estrogen, bought a huge balloon that spelled out “IT’S A GIRL!”
“sorry, no gender balloons at the grocery store,” is how he put it. With all that in mind, he’s been amazingly supportive, and way more inclined to push himself to treat you to nice things than to himself. Why’s he being so certain you don’t need the outfit today?
“If… if you insist. What do ya want for breakfast?”
“no time for that, either. this is all you can eat.”
He hands you a fruit bar that emphasizes the peach in it.
“you’ll feel peachy about all this once ya eat it.”
“…Are you trying to take me to a colonoscopy? If you are, this would ruin it, you can’t eat anything for those.”
“heh, nah, it’s not a colonwhatapy. eat up.”
Sighing while your stomach grumbles, you munch down on the fruit bar. It’s a little too sugary, but at least there’s probably some nutrients in there.
“there ya go. just take your estrogen, and then we gotta get goin’.”
Whatever it is can’t be all that bad if you can still take that. You pop a pill under your tongue, feeling a little more awake and energized thinking about it being another step towards really being you.
“Okay, think it’s dissolved.”
“lemme see. open up.”
He’s made this joke before, but it’s funny enough for you to roll with it again, so you open your mouth and lift your tongue while he uses his phone light to peek under.
“...yup. it’s estrogone. your girl meter went up a bit.”
“Pffff, thanks for checking.”
Not really feeling like going back to the sock drawer, you throw some slides on. They should feel nice for a sunny June morning, anyway.
“alright, i know a shortcut. let’s get on over there.”
“And I don’t get to know where ‘there’ is?”
“nope.”
“...You’re lucky I love you so much.”
“heh. love ya, too.”
This is all still really weird, especially the outfit thing, but he hasn’t led you wrong before. Taking his hands, the world disappears in a familiar blue flash, then appears again with another. He’s taken you outside what looks like a big warehouse. There’s lots of strange lighting equipment and boxes outside… is this a TV production building?
“Sans? Is this where you meant to take me?”
“yup.”
One of the many doors on the side of the building opens up, and a very excited teenager steps out with his parents. He keeps hugging them, looking like he’s about ready to cry.
“Thank you, thank you, thank you, it’s all even better than I thought it’d feel…”
He keeps thanking his parents, who’re beaming ear to ear as the three of them walk to the parking lot.
‘Better than I thought it’d feel’… wait.
You remember seeing on the news recently that Mettaton, the eccentric, spotlight-crazed robot that’d moved up from the Underground along with the rest of monsterkind, had recently converted some equipment that’d been used for one of his stage performances into an amazing breakthrough for transitions. People who are willing to pay up its exorbitant costs to be run can sign up to step inside, and with a few seconds of magic that human science can’t understand, it shifts the body of the user into exactly what their true gender identity is. It’s been a miraculous breakthrough, and it’s stunned lab companies that an entertainer was the one to design it, but… no, this couldn’t be it, it’s way too expensive to be in either of your price ranges, and it’s only offered one day a month, Mettaton keeps a busy schedule.
“...Sans, this couldn’t be-”
“just keep on walkin’.”
He nearly pushes you inside, leading you down a thin hall full of posters of Mettaton. They’re from all his famous movies, Mettaton VII, Mettaton XIII, and Mettaton XIX to name a few. Somehow, he pumps out over a dozen of these things a year. You can dwell on his movie-making “ability” later, though… is this really… no, it…
“that door.”
Sans points you to a door that used to say “Lighting Rigs & Spotlights”, but has been crossed out to say “APPOINTMENTS ONLY”.
“follow me.”
“...I’m not still sleeping, right?”
As if he knew you were about to ask that, Sans pulls a strawberry out of his pocket and throws it at your nose; it bursts into a bunch of little pieces.
“yeah. you’re awake.”
...At least the strawberry tastes good.
Once you’ve cleaned yourself up, you step into the room with him, where the one-and-only Mettaton, currently in his simpler state of a giant box on a wheel instead of his lavish performance body, is standing behind a desk, looking over some papers.
“HMMM… THE RED DRESS WOULD BRING OUT MY WHEEL, BUT THE WHITE DRESS WOULD REALLY ACCENTUATE MY HANDS… OH. HELLO THERE, SANS.”
It seems everyone knew everyone in the Underground, so you’re not too surprised Mettaton knows Sans, even with his celebrity status.
“heyo. sorry to bust in on ya without a-dress-ing anything first.”
“HAHAHA. VERY FUNNY. IT’S VERY IMPORTANT I CHOOSE THE RIGHT COLOR, IT’S GOING TO MAKE THE DRAGON MECH FIGHT ALL THE BETTER.”
Dragon mech fight…?
“I SHOULDN’T EVEN BE TELLING YOU THIS, IT’S STILL CONFIDENTIAL. WHY’RE YOU HERE, ANYWAY?”
He doesn’t let Sans answer, noticing you first.
“OH. THIS MUST BE ____. I KNOW YOU HAD NOTHING BUT KIND THINGS TO SAY ABOUT HER WHEN WE LAST SPOKE.”
“yuppers. she’s the best.”
“Awwww, you- o-oh, right. Hi there, Mettaton, pleasure meeting you. Watched plenty of your movies with Sans and his brother.”
“GOOD TO MEET YOU, TOO. PAPYRUS WAS SO FOND OF XVIII WHEN HE MET ME. WAS THAT YOUR FAVORITE, TOO?”
“Hmmm… very possible. The part where the daughter was the secret agent really surprised me.”
That movie was more perplexing than ‘good’ to you, but it is the one you’ve dwelled on the most. Mettaton reaches for a handshake that you accept; he might be a bit egotistical, but he’s completely respected your gender, which you appreciate.
“ANYWAYS, WHAT BRINGS THE TWO OF YOU HERE, OF ALL PLACES? I DIDN’T GET A CALL.”
“i’m here to cash in on that favor you promised.”
“...OH. RIGHT, THAT.”
You remember Sans telling you the ‘favor’ Mettaton assured him he’d fulfill. When prepping his news segment a couple weeks ago, Mettaton accidentally let off a flock of robotic pigeons that threatened to tear down the studio, piece by piece. Sans was the only monster with a good fighting ability he could get ahold of fast, and after taking down the pigeons with some well-timed bone throwing, the studio was mostly saved. It got Sans a segment on the broadcast, and Mettaton promised him he’d make up for it with something.
“I wanna use it for ____. you still got time today?”
Mettaton peeks at the clock, then you, and then back at Sans.
“...DEFINITELY. A PROMISE IS A PROMISE, AND I’M SURE SHE’D ENJOY IT PLENTY.”
“enjoy? oh, with how much she’s talked about her goals, she’s gonna feel woman-derful .”
“...Are- are you really meaning-”
“YES! HE’S MEANING EXACTLY WHAT YOU’RE THINKING. COME WITH ME!”
It’s more a demand than a suggestion; Mettaton starts pushing you along the room and through another door, where you come face to face with a huge, white box with another door on it. It’s so bright that you have to squint a bit to look at it. You can hear the thumping of Sans’ slippers as he enters the room from behind.
“here ya are, ____. the box o’ your dreams.”
“Sans… how… why…”
“y ask y when x marks the spot? let’s get those chromosomes fixed.”
“...Y-Y-You’re really about to…”
It can’t be real. No, you have to still be sleeping. That favor was big enough that Sans is really about to get Mettaton to… give you a spin in the gender device? To fix you up and get you looking just like how you feel…
“...I… I don’t know how to…”
“THE SOPPING CAN WAIT FOR LATER! I DON’T HAVE A LOT OF TIME. READY?”
You look at Mettaton, then Sans, who has the biggest, most sincere smile he can give. You’re certain he’s not pulling your leg, not for something this serious.
“I… yes. More than anything.”
“THEN GET INSIDE!”
He’s about to push you again, but you want the feeling of knowing you felt enough drive to leave your man-ness behind for something better, so you step inside on your own. The door shuts behind you, and the roam fills with some kind of bright white steam. You can’t see a thing, and right now, the only ‘change’ you feel is a bit of difficulty breathing.
“*Cough*… What should I do?”
“NOTHING RIGHT NOW! GETTING THINGS READY!”
You can’t even tell which direction you came in from; everything is a blinding white. You can hear Mettaton pressing a bunch of buttons on the other side of the wall.
“OKAY, CLOSE YOUR EYES AND ROLL YOUR SHOULDERS BACK THREE TIMES. DON’T OPEN THOSE EYES UNTIL I SAY SO!”
“A-Alright…” You close your eyes and roll your shoulders backwards once, then twice, and after wondering again for a moment if this really is still a dream, thrice.
“OKAY, HERE WE GO!”
He presses one more button, and then the inside of the machine starts beeping and booping; it starts loud and only gets louder. The steam picks up speed, blasting you in the face and abdomen, but you keep your eyes closed. One of Mettaton’s famous songs starts to play, and as it does, you can feel your feet lift off the ground. No wonder this is so expensive…
“GET READY FOR ____ AS HER TRUE SELF, WORLD!”
You start quickly spinning around, but somehow don’t feel nauseous from it. The steam keeps whipping and whipping, surrounding you with a cocoon, and suddenly, your whole body feels warm while it presses up on your skin, and-
*WAZOOOOOOOOOOOOOOOOOOM!*
…
Everything feels numb. You try to think, but it’s all too hazy. For a few seconds, everything hangs in place like this, until your spinning slows down and you feel your feet touch the ground.
Except… it doesn’t feel the same as when you took off. Instead of slides, it feels like you’re wearing… a pair of little boots?
“OKAY! COME ON OUT, ____!”
“what mettaton said. want to see how ya look.”
“I’ll- I’ll be right- there?”
What. That didn’t sound anything like you, it’s a woman’s voice.
Wait. It’s a…
The steam clears out, and as you step out of the door, you feel a strange heft in your chest.
When you look down and see the top of the breasts that’re there, you almost collapse.
The machine did exactly what you hoped it would. Your body’s been completely changed to the shape of a woman; your hips and butt have changed shape, your chest’s grown out, you can feel hair touching your shoulders, and as you blink a few times and look at your hands, you see that, along with your body hair saying goodbye, your nails are longer and coated with gloss.
“...hun, you… mettaton, ya got a mirror around?”
“YOU BET I DO! HERE, ____, LOOK AT YOURSELF THROUGH ONE OF MY FABULOUS MIRRORS! A MIRROR THAT’S HAD MY REFLECTION PLENTY OF TIMES.”
Mettaton holds up a body mirror for you to look at, and the first thing you see, aside from the shock in your eyes, is the lashes that now sit on them. Your hair is wavy and works just down to your shoulders, which are covered by a red crop top you’re wearing instead of the tee from before. Your legs are slender, free of any hair, and the tops of them are covered by an adorable pair of jorts, just like the ones you’d seen online recently and wanted. A pair of cute white socks sit under the little boots you’re wearing, and looking back at your chest, you see a necklace with the first letter of your name, your real name, hanging from it.
“...It’s… I’m really…”
The voice again… you grab at one of your cheeks to make sure it’s real, watching it squish as you grip it. Its skin is so much softer than just a few minutes ago.
“...Sans!” You run to him and scoop him up in the tightest hug you can give, jumping around in circles. You don’t know if you’re about to laugh, or cry, or both.
“heheh, strong gal. nice hair, too. can i ask where ya got it done? really is a cut above the rest.”
“Ahahahahaha, aaaaaaaah! AAAAAAAAAAAAAHHHHH!!”
It’s everything you’ve wanted you to be, thanks to a robot movie superstar’s old stage performance equipment?? It’s not how you ever imagined your journey going, but who cares? Look where that journey took you!
“IT’S ME! IT’S REALLY ME!!”
“sure is. happy first day of the next part o’ your life. makes me happier getting to hug the real you, too.”
“You… M-Mettaton, how did you- there was all that steam, and I started spinning, and…”
“YOU HAVE TO SIGN THIS BEFORE I CAN SAY ANYTHING ELSE.”
“Okay!” He hands you a clipboard, and you sign it and hand it back to him, not stopping to read anything it says.
“THANK YOU. JUST SOME CONFIDENTIALITY LEGAL MUMBO JUMBO. ANYWAYS, GLAD TO TREAT YOU TO WHAT BODY CHANGE FOR STAGE PERFORMANCES IS LIKE, ONLY IN A PERMANENT VARIETY!”
“It’s never going away, then?”
“NEVER. IT’S AS PERMANENT AS THE REST OF YOUR DNA. JUST BE GLAD I DID SOME TESTING ON THIS BEFORE TRYING IT ON ANYONE.”
“What- what happened?”
“LET ME SHOW YOU.”
Mettaton pulls up a video on his phone, showing the two of you. It’s from inside the room that changed you, but there’s a watermelon resting in the middle instead.
“I TOLD IT TO MAKE THE MELON PURPLE. THIS HAPPENED.”
The steam picks up and the beeps and boops begin, but they suddenly make a bunch of awful sounds instead, and the watermelon expands a bit before exploding, making a huge, sticky mess over everything.
“Woah! Yikes, that’s, uh, not good.”
“I WAS GOING TO DONATE THE GUTS TO THE ZOO, BUT IF THEY HAD RADIATION IN THEM, THAT WOULD’VE MADE A REALLY BAD HEADLINE. ANYWAYS, IT WAS FIXED, AND NOW YOU AND MANY OTHERS HAVE GOTTEN TO TRANS YOUR GENDERS WITHOUT EXPLODING.”
“That would’ve made it a little harder to enjoy.”
You almost forget in the middle of the conversation just how much of you’s different now.
“I… this means so much, thank you, thank you, thank you, I… I don’t know what else I can do right now but keep thanking you.”
“PROMISE YOU WON’T TELL ANYONE ABOUT THE DRESSES AND THE DRAGON MECH?”
“That works.”
“IT’S A DEAL, THEN! SANS, IF YOU COULD SHOW YOUR GIRLFRIEND TO THE EXIT, I HAVE TO GET DRESSED FOR MY COURT HEARING!”
“Your… court hearing?”
“OH, DARLING, DON’T WORRY, IT HAS NOTHING TO DO WITH THE DEVICE. I FORGOT TO PAY SOME TAXES, AND NOW I HAVE TO USE MY GLITZ TO CONVINCE THE COURT TO NOT HOLD IT AGAINST ME.”
“Oh. I’ll, uh, be rooting for you!”
“good luck. make ‘em feel guilty about ever thinking you could be guilty.”
“I’LL TRY! SEE YOU SOME OTHER TIME.”
The walls don’t feel real when you walk out the building. It still doesn’t feel like something this important and profound could’ve just happened in a few minutes, but there’s no way you can be dreaming. The weight you feel in your boobs as you climb some steps to reach the exit is much too real, just like the sun that soon hits your belly under your new shirt.
“you really look amazing. no wonder the perfect you in your head’s looked so good. fits the personality like a glove.”
“I don’t… don’t know what to do with myself…”
“got an idea. take my hands.”
“O-Okay. You’re probably better at thinking than me right now, anyway.”
You place your hands again in Sans’, and he takes a moment to feel the gloss over your nails before teleporting. All the things he could’ve used that valuable favor on, and it was you…
When the teleport flashes again, you hear lots of happy chatter, and your nose is filled with amazing smells. Opening your eyes, you see you’re at the entrance of the county fair you’d been hoping to go to with Sans sometime soon!
“Oh! The fair! Sounds perfect, I… I still don’t know what to say.”
“i’ll do the sayin’, then. it’s a day at the fair with my gf.”
“With your gf…”
“that’s what ya are, right?”
“Yeah-I, I mean I- yeah. Inside and out.”
“and I want her to get to feel just like herself on all those silly rides. whaddya wanna do first?”
“Would… would you be bummed if I said ‘eat’? I know there’s lots of rides, but I think that magic got me really hungry…”
“now when would I ever be bummed about eating? that magic mighta screwed with your brain.”
“...Uh oh, did it really-”
“pfff, nah, you’re fine. lets get some grub.”
“Ooooo, hot dogs!”
It won’t be a hot dog from Sans’ stand he set up downtown, but you’ll still enjoy it plenty. Holding his hand, you head with Sans to the hot dog stall, waiting for your turn and taking the time to appreciate how even your breathing sounds more feminine now. You get caught up in it enough that Sans has to give you a little tug when it’s your turn.
“Oop, sorry!”
“heh, you’re fine. you might have a thing or two on your mind today.”
“Heheh, you could say that.”
The man behind the register finishes putting cash in, then looks at Sans.
“Hey, there. What can I get ya?”
“gimme a chicago dog, please. extra neon on the relish.”
“I’ll see what I can do. And what does the misses want?”
The misses… you want to say something about how nice it feels, but he’d probably be a bit confused.
“C-Can I have the chili dog, please?”
“Sure thing. That’ll be twelve dollars total.”
You’re about to reach for your wallet, but Sans hands him the money before you can get to it. He leans in and whispers into your ear.
“that one’s for pride month. not that I can think of why that’d apply, mrs. changed-my-gender-in-the-device.”
“Pffff, happy pride to you, too. Did you forget you’re bi?”
“whoops. guess i let that slip bi.”
Laughing and giving him a little shove, you take the finished hot dogs and find an umbrella to sit under, munching down on your first meal post-gender whoosh.
“These tits aren’t gonna keep themselves fed, huh.”
“nope. excuse for ya to eat more.”
“Good. This… mmmrf… this dog’s delicious. how ‘bout yours?”
“real good. relish is extra neon, just like i asked.”
You're glad the Chicago dog is helping Sans’ vegetable supply; he’s not always great at keeping it up. It doesn’t take long for you each to tear through your food, and you feel much more able to enjoy the fair.
“congrats.”
“What for?”
“for finishing the dog. there’s exactly zero wieners on you now.”
“*snort* Ahahahaha… w-wow, you’re right, huh?”
“you bet i’m right. let’s go try some rides.”
The roller coasters feel amazing, between how much you already have to be happy about and the feeling of your hair whipping in the wind. Sans isn’t usually much a rides guy, but he has a great time enjoying them with you, and shows off a bit more vocal range than his usual monotone dialogue would make you think he has on the loops. He then shows off his knack for winning carnival games, nailing each and every throw involving a ball or ring. There’s a couple times you wonder if he’s using his magic to make things land where he wants them, but there’s enough rigged carnival games out there that it feels justified if that’s what he’s doing. You aren’t about to say no to the huge stuffed toys he’s winning and giving you, anyway.
You and Sans would usually be feeling a bit tired this late in the evening after doing so much, but the adrenaline carries you through. Between all the soft toys he’s won and how many times workers at the fair have referred to you as his girlfriend, it feels like you’re making your grand debut to the world as the woman you really are. By the time the fair closes, you’re laughing your way through the exit with Sans, talking about how sure you were you’d fall off the Wild Mouse coaster, the ring Sans threw that bonked off the top of eight milk jugs before falling on the right one for a big teddy bear, and, of course, plenty of jokes about your new shape.
“heheh, when ya sat on my leg on that cramped tilt a whirl, I got to feel where that peach bar went.”
“Pfff, is that why it had to be peach?”
“yup. i’ve got no clue how it works.”
“And you can’t tell Mettaton?”
“nope. one of those papers we had to sign was an nda. a ‘no details allowed’ paper.”
“Oh. Well, the destination was more important than the journey.”
With another flash, Sans teleports you back to the house. He has to use the face camera to unlock the door, since your face’ll need to be added again later.
“don’t worry. I’ll delete the old face when we add yours. that thing’s old news.”
“You…”
You leave the door open when you enter, mind buzzing too much from all that day you experienced. Sinking into the couch and feeling your hair touch up on the cushions sounds soul-soothing, and there’s someone you want to enjoy that with, as you set your winnings on the floor.
“C’mon. Air ____ is about to take off.”
“whaddya-”
Pulling Sans down onto the couch with you, you close your eyes and plant a big, wet smooch on his forehead, feeling a tingle in your toes from your hair touching his skull. He chuckles a bit from the sensation, gripping at your shirt with one hand and feeling your hair with the other.
“this was waitin’ inside ya all this time, huh.”
“It- it got hard at times… but now it’s all I am. Glad it didn’t make you want a refund on that favor.”
“pfff, for someone this adorable? nah.” He places a hand around your cheek, giving it a squish.
“human women are weird. weird in a good way. you’re so friggin’ squishy now.”
“With your bones, I guess we balance each other pretty well, huh?”
“yuppers.”
“I… I still don’t know how to give you something as nice as this back.”
“just keep bein’ you. that’s all I need. not gonna make you pay a boob tax.”
“Ahahahah, that’d nip pretty bad at my bank account.”
Laughing together, you keep him pinned close to you, feeling a deeper warmth in your face than before. He’s perfect, and you feel so whole like this, and the outside gets to match the inside and make you feel completely visible, and… and suddenly, you’re a bit overcome with wanting to know what your new shape has to offer.
“Shut the door.”
“heh, why’s that? the breeze is nice.”
“You know why, ya dork.”
“fiiiiiine.” He throws a bone at the door to close it.
“There we go. Imma just…”
Catching Sans by surprise, you gently grab at his ribs and flip him around, now being the one pinning him down.
“Wanna make some dreams not dreams anymore?”
“could ask ya the same thing…”
Grinning, you give his forehead another kiss, while he starts to explore your sides with his hands. Together, you’re gonna learn a thing or two about what makes your body feel its best.