Anatomy Lessons

by Pozzo

Rating: mature
Tags: Romance, My Little Pony: Friendship is Magic, Spike, Comedy, Sex, Twilight Sparkle, Random, Gore, Dark
Length: 4245

Twilight takes herself apart. For Science.

Twilight Sparkle, after finding out that she is immortal, decides that this is an excellent opportunity to learn about how the pony body works. What she didn't count on was Spike walking in during the process. And then things just get weird.

Contains: Extremely graphic yet non painful/lethal gore. And technically a bit of non-con but really it's that first one you need to watch out for

(This story is being reuploaded after a false plagiarism claim. To be clear: I am the original and sole author of this story, which was first written for a 4chan thread, then put on a pastebin, before I tidied it up and posted it here.)

Published 2017-03-24 23:50:01 UTC
Last updated 2017-03-24 23:50:01 UTC

Anatomy Lessons

You are Spike the Dragon. Assistant to the Princess of Friendship herself, Twilight Sparkle. Well, you’ve been with her since you were born, so she’s a bit closer to you than that suggests…anyway, mushy stuff aside: You’re feeling kind of hungry, and could do with some snacks. You were just about to head out to the bakery for Twilight when you heard something strange from behind her bedroom door. It was something wet sounding. Kind of gross, really. It made you think of noodles for some reason. And every so often, you could hear little gasps, and the sound of heavy breathing.

You stand there, not sure if you should check or not. I mean, you've heard stuff like this before, and Twilight seemed fine to you. Even if she did seem a little breathless sometimes So you decide to ignore it for now, and turn to leave, wondering if there were any specials going on at Pinkie's place.

"Ahh!"

You hear Twilight cry out. Then you hear a heavy thud. Is she alright? Delicious pastries can wait, for now. You just need to see that nothing’s going on. It should only take a moment. You open the door and peer inside.

"Twilight, are you ok? I heard a....a..."

You falter somewhat, and blink your eyes. You were expecting Twilight to be in bed with the covers over her, like that one time you came in to talk about rarity. She was kinda mad at you for some reason. Mares are weird like that. At the very worst, you thought that maybe she had fallen out of bed. Which would have been a little funny. You could have had a laugh at her expense and then went off to the bakery, as planned. Easy.

Instead, she’s lying on the cold floor, surrounded by books, notes, various sharp tools… and blood. So much blood. Twilight smiles up at you from the floor, nervously. It’s hard to make out though, on account of all the blood. Seriously it’s everywhere. On the floor, on her bed, on her face, her wings, her coat, her legs-

Her legs. Oh Celestia, Twilight’s back legs are missing. One’s lying beside her, cut into small pieces. You can see the bone in the centre, and the marrow inside of it. The other is floating in a purple glow, blood still oozing from it. Twilight sees you staring at it. She attempts to shrug with her two remaining limbs, which proves difficult when you’re trying to support yourself with them.

“Spike! Hi! Haha, hah…I, uh, thought I asked you to go out?” says Twilight.

You continue to stare. Twilight is visibly sweating.

”Well, I’m fine, haha! Sorry about the noise. I forgot I had taken the other leg off earlier, so I fell. Whoops! Haha.”

Am I ok? You’re asking if I’M ok?!” you ask

”Spike, I’m fine, honest. I’m an alicorn now. That means…well, you know how Princess Celestia is 1000 years old? That’s because she’s immortal. All Alicorns are.”

“Right. Ok. And that explains this…how?” You ask, waving at her discarded limbs

”Don’t you see what this means? That means this is the perfect opportunity to learn about the pony body! I’ve already dissected my back leg. There’s so much more to anatomy than what the drawings tell you! For instance, in the average leg, there are-“

“Twilight, you cut your own legs off!” you almost shout. “You’re covered in blood! This is…weird! Doesn’t it hurt? Will it grow back? What if-“

”It’s ok, Spike, really. I can put myself back together again. I checked with the princesses. Well, Luna cut Celestia’s head off, which was kind of a shock, but then Celestia borrowed a guard’s spear and shoved it into her-uh, long story short, it’s all fine.”

You stand there, unconvinced. She crawls towards you, propelling herself slightly with her wings, and gives you a hug.

”I’m sorry for scaring you, Spike.” She says, softly.

You feel her warm blood covering your scales. You can smell it, even. You slowly return the hug.

“Whatever you say, Twilight. I trust you.”

”Great! Well, while you’re here, can you write down some notes? I’ll have my hooves full for most of this, so to speak.”

Well, you were her assistant…

You spend the next half hour or so writing down Twilight’s notes as she studied her own legs. She was as happy as a pig in mud, as Applejack would say. Humming little tunes to herself as she peels the skin off her foreleg like a furry sock, occasionally levitating a hanky to her face to wipe away the blood.

”Wow, the forelegs are so different to the hindlegs! Look at this, Spike!”

“Wow, amazing.” You say, recoiling slightly as she waves one half of her own hoof in front of you. You’ve just about gotten used to the sight and smell of blood, at least. You just hope she’s got a spell to clean all this up.

At this point, Twilight is totally limbless, save for her wings. If it wasn’t for the red, raw stumps on her torso, she would look ridiculous, like a duck at rest. As it was it was just a bit gross. Twilight suddenly let out a massive yawn, her limbless body quivering as she does so.

“Oooh… I feel pretty tired now. Must be the blood loss…I might go for a power nap. Then we can get started on the really interesting stuff!” She hovers up with her wings and gently floats into bed.

”It must be easier to fly, at least” you say. Twilight giggles, and beckons for you to join her.

You feel like a little snooze as well, actually. You jump into bed and join her, snuggling against her warm, limbless body and having a peaceful, completely platonic snooze, like you’ve done so many times before. Well, except for the limbless part…

================================================================================

It’s dark when you wake. You feel very warm. You can feel fur and feather on your scales. But also something else. Something alien. Wet. Large and circular, just by your claw You force your eyes open and investigate Oh yeah, you went for a nap with Twilight. She’s still asleep
…
Oh yeah, you remember what you were doing. You look up at the weird thing your outstretched claw was touching It’s a big red stump, right where her right foreleg should be. You stare at the large, round slice of one, right in the middle. Maybe it’s cause you’re just waking up, but you’re not as freaked out as you feel you should be. Or maybe Twilight’s sense of morbid curiosity was rubbing off on you. Either way, you experimentally tap the bone with your claw. It’s cold and hard, the opposite of the warm, moist meat surrounding it. You spend a few moments gently tracing these new textures.

Twilight giggles in her sleep. It must tickle. You slightly increase the pressure. It’s not long before she wakes up. She looks at you hazily, but you soon see recollection flash across her face.

“Oh, hi Spike. Is it…morning?”

“More like evening. We went for a nap, remember?” you correct her.

”Oh, that’s right. We were, uh, studying.”

“Yeah, studying you. Until you ran out of limbs, that is.”

Twilight turns over, splaying her wings out on the bed.

”I’ve still got these to look at. I’m still learning things about mine, and now I get to get to study them in-depth!” she says, smiling.

Yup, she’s still into this. Guess that’s what you’ll be helping her with today. You sit up, surverying the room. It looks like something out of a horror movie.

“Can we clean this up, first? It’s starting to smell really bad.”

Twilight rolls out of bed, yelping as she hits the ground. She starts to hover in place with her wings-like a hummingbird, you think-and concentrates. Her magic starts to work its…magic. The congealed blood is soon gone, leaving the floor relatively spotless once more. What remained of her legs were neatly set to the side. They had stopped bleeding, at least.

“Aren’t you gonna put those back on?” you ask. Twilight wiggles her limbless torso

”Well, I kind of like the novelty of not having any right now. Trust me, this is just the start!”

You chuckle nervously. You hope she knows what she’s doing. You find that you don’t look too closely at Twilight while she’s hovering like that. She’s a little, well…exposed, without her legs in the way. Nothing you haven’t seen before. It just seemed rude to stare, is all…

”Well, shall we begin?”

After you get yourselves some snacks from the fridge (you did miss an appointment with Pinkie’s baking, after all), Twilight lays down on a cushion on the floor. She picks up a small saw with her magic. Then she looks at you.

”Spike, would you like to do the honours?”

”Are you serious?” You ask.

”Just thought you might be curious. It’s ok if you don’t want to, I can do it-“

“No no, I can do it.” You say, suddenly. You’re not entirely sure why. But it’s true. You are curious. Not often you get asked to perform a little surgery. Shrugging to yourself, you tentatively pick up the saw. You’ve never used one before, but you’ve seen ponies use them. Simple enough, right?

“Now, try to cut as close to the base as possible. Let the saw do the work.”

She guides you like this as you start to cut-slowly at first, then quickly. She betrays no sign of any real pain. Was it a spell, or a potion? You forgot to ask, you were so caught up in the act. It was like you were watching yourself do something unimaginable. You’re not sure if you like it or not. You feel….something, and it’s a strong feeling, as you cut through flesh and bone. It honestly doesn’t take long before you’re holding Twilight’s wing in your claws, blood trickling from the wound. It’s surprisingly heavy.

“Well done, Spike! You’re a natural!” says Twilight.

“Uh…thanks” you say. You offer the wing to her, lamely.

”Now, get ready to take some notes.”

You do so, clearing your mind as best you could and dutifully writing down what you hear as Twilight takes her beautiful wing apart. Cutting parts off, striping the feathers away, holding it this way and that as she looked at it. Then she did the other wing. You sawed that one off too. It was even easier this time. Twilight was now just a head on a torso. And a tail, you guess. Before you had found her weird and gross. But now she looked oddly cute. Vulnerable, even. She looked completely helpless. She would be, if it wasn’t for her horn.

You had always seen Twilight as this protective, powerful figure. Now she was stripping herself away. It stirs something in you, without you even really realising what it was.

Only question now was…what part of her was next? Your question is answered when Twilight rolls over onto her back, exposing her belly. She sticks her tongue out as she drags a scalpel down her abdomen. It’s so sudden that by the time you realize what she’s doing, it’s already happened. Her intestines spill out of the cut, helped along by her magic. Fittingly enough, you feel your own stomach turn a bit at the site.

“Oh, that’s nasty, Twilight. Warn me if you’re gonna do that, huh?” you protest.

She looks at you as if you’ve said something particularly silly.

”Well, what did you expect?” retorts the purple alicorn. “I did say I wanted to study myself.”

“Well, yeah, but-“

”And you just seen me take my own legs and wings aparts, is this really all that much worse?”

“Uh…a little bit? It’s definitely more gross.” You say, as she continues to spool her own entrails out.

“Oh quit being a baby and straighten these out for me. Did you have any idea how long the small intestine is?”

“No. I bet you do though.”

She did. She practically squeed when the measurements matched up to what was in her books. After you were done with them, she severed the ends and coiled them up like a big rope. There were still plenty of other squishy things inside of her.

”Oh, the kidneys! Surprisingly complex, huh?”

“Ah, the liver! And I think that’s…yes, the spleen!”

And so on, with you writing down whatever facts she starts to rhyme off about each one.

“What’s this one?” you ask, holding up a small, round thing. Something sloshed inside it.

”That’s the bladder. I’d put that one down…”

You do, hurriedly. You wish you had gloves for this.

Soon her stomach area was completely empty save for her pelvis and spine. And something else…

“Hey, this thing looks kind of weird.” You say, prodding it with your claw.

”B-Be be careful with that, Spike!” Twilight says.

You study it carefully, your face practically inside her hollowed out abdomen. You trace your claw down it, fascinated. Two little white balls attached to a rubbery thing that was connected to a fleshy tube that led to… An opening…

“Oh, eww, that’s your mare-bits!” you say, recoiling in horror and embarrassment.

”It’s called the uterus, Spike. Come on, you’re not a kid anymore. Stop acting like one.” Says Twilight. She’s acting calm, but you can tell she’s at least a little embarrassed too. There’s an awkward silence as she removes it herself, gently setting it down next to its fellow organs. You subconsciously cross your legs as you stare at it.

“Ok, uh, moving on then” Twilight says at last. “This could be a bit tricky, so just give me a moment…”

The alicorn produces a large saw, much larger than the one you were using earlier. You hold her by the sides and keep her steady as she saws her ribcage in half. It takes a while, and the sound of bone being sawed through makes you feel a little nauseous again. You can feel the vibrations go right through you as you hold her. When it’s done, she pulls her ribcage apart with her magic, exposing her beating heart and two pulsing lungs. Watching them reminds you of a clock. Maybe it’s the rhythm of the heart.

“Twilight…that’s your heart.” You say. It sounds simply but the fact astounds you. She asks you if you’d like to touch it. You hesitate, but you do. It’s hot in your hands. It feels powerful, and yet fragile, all at once. You know that Twilight’s immortal or whatever, but you’re gripped with a sudden, instinctual fear, and let go suddenly, backing away from the dissected pony. Your claws are bright crimson. You look down at them like they were mirrors.

”You ok, number one assistant?” asks Twilight, sincerely.

“Y-Yeah, just…weirded out a little.”

Twilight continues on with her study. With only a slight moment of hesitation, she removes her heart, turning it over this way and that, even giving it a few squeezes with her magic, before setting it aside. When her lungs come out you hear her breathing get funny for a moment, like she has to concentrate on it Her torso is now devoid of organs. You think you might be done for today, but then she starts removing her ribs, one at a time, snapping them off with a loud cracking noise that seems to vibrate right through you.

Following her ribs was the rest of her skeleton from the neck down. The hip bone comes out in one big piece, the skin and muscle left drooping on the floor, still attached. As she peels the spine away from her back muscles, she asks you to saw it off at the neck.

You’re going to cut her head off. Well, In a way, she’s just a head and a spine right now anyway, you guess…You shrug and pick up the saw. Holding her head down with one claw, you saw through the bone where she asks you. When it’s done, you pick her up, holding her up to your face

“You’re still kinda heavy” you say.

She rolls her eyes.

”Thank you, Spike.” She says, sarcastically. “Now, I want to try something. Take out one of my eyes for me, would you?”

“Sure thing.” You say, almost casually.

”There should be a spoon for you to use nearby”

“Wow, you really did plan ahead…heh, a-head! Get it?”

She groans. Whatever, that was a good one.

You do indeed find a spoon, and dig it behind her right eye. With some leverage, the eye pops out of its socket, dangling by a weird stringy thing. Twilight immediately severs it, then groans as she holds it with her magic.

”Oh, half my vision just went dark. I was hoping I could use them like cameras, so I could watch as we study my head. Now I don’t know if I can…”The little pony head pouts, clearly annoyed.

“What if I get a mirror?” you offer.

”Spike, that’s a great idea! There should be one in the drawer over there.”

You tiptoe past a kidney, her spine and half a foreleg and retrieve the mirror. On the way back you step on something squishy. You look down. You’ve stood on her…mare parts. Some sort of juice dribbles out of the exit.

”Everything ok back there, Spike?” asks Twilight

She can’t feel it anymore, you note.

“Uh, sure! Coming!” you say, quickly.

You hold the mirror in front of her face as she lies on a pillow. She puts her eye back in her socket with her magic, and blinks. “Ah, my sight’s back to normal! See, that’s all I need to heal up. Neat, huh?”

“Yeah, that’s pretty cool” you admit.

Twilight beams, clearly pleased.

”Have to admit, I was a bit worried that wouldn’t work….” She says. “Would have been kind of a problem.”

“We’d have needed a lotta glue”

You both laugh. Then she looks at you oddly.

”Spike, try cutting my horn off.”

“Uh, don’t you kinda need that?”

”Only in the same way that I “kind of” need my legs.”

“Well, yeah…Ok, I guess…”

You pick up a saw, then turn to the head in front of you. You’re not sure what the best angle for this is. You turn her over and around, testing some out. When you put her face up, you notice her neck stump, with a gaping hole for her throat. Weird. Eventually you settle on awkwardly holding her down with one claw and sawing with the other. She complains, but hey, this wasn’t your idea.

Her horn is easier to cut through than you thought it would be. Not as hard as her other bones. it clatters to the floor and rolls away, leaving a circle of smooth purple on her forehead. Twilight giggles suddenly.

”Hah, I tried to pick it up with my magic. Haha…”

You pick it up and show it to her She’s treated everything with detachment, but you can see how strange she finds this. She’s literally helpless now. Just a head. No limbs, no wings, no magic. Nothing.

”Well, let’s keep going. Keep taking things off, Spike, then catalogue them. When I’m completely in pieces, take a photo, then follow the list backwards so we can get me back together again.”

“Why take a photo?”

”Well…because I want one! This is super cool, right?”

“Uh, sure.”

At Twilight’s suggestion, you lop her ears off first, making sure to show them off in the mirror. Then you add them to your big list of body parts, which is impressively long now. She can’t really hear you anymore, so you’re not talking much now. Twilight words “jaw” to you. You feel around her until you find the hinges, then slice them away Her tongue lolls out when her lower jaw comes off. It’s bigger than you thought. Wet and warm. Off it comes. Your claw get slimy very quickly as you roll it up. You leave her eyes in right now. She’d want to at least see everything.

Next comes Twilight’s purple mane. You peel the skin away from her skull, exposing the white bone. You set the long hair aside and work on peeling away the rest of the flesh on her head You try to be funny and put her face over your own. She can’t really laugh though, or show any emotions anymore, so it’s a bit wasted on her. But you laugh anyway, before
tossing her face away like a napkin.

She’s now just a skull with eyes.You saw around the top of her skull, just and pull the cap off like you’re a waiter revealing a dish at a very fancy restaurant. Her pink brain is now exposed You run a claw along the rim of her skull cavity, before touching the brain itself. It’s like a firm jelly. Carefully, you lift it out, making sure the eyes stayed connected. Didn’t want to leave her blind. You set the brain down next to her skull on the pillow.

You realise that you have now completely dismantled Twilight Sparkle, the Princess of Friendship. She’s just a brain now. You guess you could start slicing into the brain…but you’d rather Twilight was here to talk you through it. You survey the room, body parts taking up nearly all available floor space.

“...Aww, man, I just realised I’m going to have to put all this back together now”.

Just as Twilight requested, you fetch a camera and take a few pictures, trying to capture everything. A shot of her limbs and wings, each one in a different state of dismemberment Her organs, all coiled and squished together, the intestines like a great coiled snake. Various bits of her skeleton, like her ribs, spine, pelvis and the now empty skull You point the camera at her brain, staring into her violet eyes.

“Say cheese, Twilight!”

You go to take one of her womb, then hesitate. Twilight’s eyes are facing in another direction from where you are. She can’t feel anything, so she wouldn’t mind if you checked something, would she? She’s not the only one who gets to be curious about things. You’ve spent your life up until now just hearing about, well, this sort of stuff, and now…

You leave the camera and pick up her uterus with your claws, examining it You look at the entrance t the tube at the botttom, and poke a claw inside of it. It’s damp and quite tight Removing the digit, you see that it’s sticky. You lick it off. Tastes not bad, actually…You feel something stirring. Your dragon cock springs into action, which makes you feel just a little bit ashamed at how eager you are for this. Even you, naïve as you are, realize that this is kind of messed up. Maybe you should stop. Just put Twilight back together like she asked. You can maybe ask her about this stuff later. But Twilight’s never been very comfortable talking about this kind of stuff. She’s never had a “special somepony”, so to speak.
And right now you could do whatever you wanted and she’d never know…

You give in to temptation. You raise her vagina to your face and kiss it experimentally. Your long tongue laps at the inner walls. It’s still warm, somehow. You meet a barrier of some sort, and bang your tongue against it for a bit before retreating. It tastes good. Very good. Do they all taste like this?

You spot the discarded pelt of her torso lying on the ground It doesn’t take long for you to reattach her lower lips to her vagina. You wrap some skin and fur around the rest of it. You hold it in your hand, a purple tube with a bulge at one end and a pretty hole at the other. It looks much more inviting now…

You lower it to your cock. You don’t know why you’re being so gentle. She can’t feel it. You look across the room at the lonely looking lump of grey matter, staring at a wall

“Sorry, Twi. I just…I need to know…”

You penetrate her

Oh man, that feels great. You’ve only really just learned about jacking off, but this? Way better. The circumstances just seem to make it hotter too. Crazier. You roughly pump it up and down along your cock. This all must have been working you up, all along, because you already feel close Your speed increases. You stop feeling so guilty and lose yourself in it. The room is filled with the sound of your wet slaps and grunts. Then your long, embarrassingly loud moan as you cum deep inside Twilight’s womb

You sit down, overwhelmed, still holding her marehood with one hand. And you think about what you just did

“Oh…oh man…Twi…”

After collecting yourself, you rush to the bathroom and rinse her sex out under a tap
You give yourself a little face-wash, try to get your composure back. Then you go back inside.

Time to get back to work. She isn’t going to fix herself, after all

She’ll never find out, you tell yourself, as you put her brain back into her skull

Just act calm. It’s ok. You didn’t hurt her.

She’ll never know.

Right?