Celestia's Crystal Snakes

by DarkArtificer

Rating: mature
Tags: My Little Pony: Friendship is Magic, Princess Luna, Porn, Princess Celestia, Sex
Length: 5334

Celestia quickly learns that water, crystal and moss aren't the only things in the Crystal Caverns.

The Crystal Caverns are one of the only cave systems Celestia has the time to explore due to it being directly under Canterlot. Over the centuries, she has explored the caverns solely to help pass the time until her sister returns from the moon. However, she comes across a large pit where she knew there used to be a large pool of water. A crumbling stone edge later, she finds herself at the bottom of a pit full of things, things that want to touch her in places.

In case you can't guess from the title and description, this story contains crystal consentacles. Crysentacles? Either way, Celestia gets rutted by magical tentacles made out of crystals.

Published 2019-01-21 21:00:01 UTC
Last updated 2019-01-21 21:00:01 UTC

Initial Discovery

Princess Celestia moved with a steady gait, her stride remaining unbroken by the uneven stone ground and odd assortment of softly-glowing crystal. Her horn, awashed in bright golden light, illuminated the cavern she trotted through. Very little of the cavern was actually made of stone, with pink, purple, and blue crystals replacing the common rock throughout the cave system. The crystals glowed dimly, providing enough light to avoid the walls yet not enough to see fully, hence Celestia’s horn. As the Alicorn walked, she glanced here and there. She knew this place well, she had been coming here for centuries, after all. She doubted there was a single part of the caverns that were unexplored.

It was still a favorite pastime of Celestia’s, even if she knew she would never find anything knew. It was a good way to waste away the years until her sister could return. One hundred and twelve to go. It sounded so long yet felt so short. She had already waited eight hundred and eighty-eight. That was much longer.

Thoughts of time aside, Celestia had found the Crystal Caverns to be a relaxing place. Very few ponies knew about it, so she had never bumped into any undesirable ponies down here, particularly nobles. The light made sure she never felt wary of what could be hiding in the darkness, and some of the crystals were bright enough that she could give her horn a rest. The air was damp yet not uncomfortable, making the cave feel cool and relaxing rather than humid and stifling. There were places were age-old streams had eroded the ground flat, giving her places to take a nap while she relaxed. With the water streams and the edible moss growing throughout the entire cave, Celestia knew she could happily live down there if she didn’t have a country to rule. She did, so the idea was pointless, but the Alicorn would often let her mind wander. There was no harm in it, after all.

Navigating the large tunnels was a breeze for the mare. She had long since learned minute details that allowed her to move through the underground. With the caves being practically abandoned, she didn’t have to worry about anypony coming through and messing her system up. The large rock to her left, for instance, had a mossy pattern that vaguely resembled a horn in the right light, with the right angle, and if she squinted hard enough. She knew that there was a cold pool of water down the tunnel next to it. She also knew if she followed the tunnel leading forward, she would come across a section of the cavern that was particularly bright and warm, perfect for taking a nap.

Of course, she wasn’t tired at all. It was around ten in the morning if she had to guess. Today was one of her days off where the counsel ruled in her place. Celestia was glad she listened to that noble three hundred years ago. His proposal was sound, even if he just wanted power. Of course, Gold Mine had never actually been on the counsel- he had been found too corrupt and had failed to garner the necessary votes.

The Alicorn was, however, rather thirsty, so she took the path toward the pool. As she walked, her ears stood up as she listened for the familiar sound of a small stream trickling into the underground pond. To her surprise, she failed to hear it. In fact, the smell of water wasn’t present at all, nor was the air growing more damp as she trodded along. The mare tilted her head slightly. Had she taken a wrong turn? Was she lost?

Celestia snorted. It wouldn’t be bad if she was. Very few of the cavern crystals were charged with magic that would interfere with her spells. She could teleport out easily enough. Even if she couldn’t, her nature as an Alicorn made her immune to anything that could be considered a potion or poison. Not even medicine worked on her because her immune system filtered it out. Between her magic, her immunity, and her golden shoes, she could easily handle any rodent that would dare attack. Of course, she didn’t know why a rodent would attack her, but semantics hardly mattered outside of court.

She took the left turn she expected to be there, the presence of a familiar landmark only confusing her anymore. How was she on the right path yet couldn’t smell or hear the water up ahead? She got her answer a few moments later. Celestia exited into a larger, more circular room where water had collected for well over two centuries. She stopped suddenly, more surprised than she had been in years. The pool was gone.

Not empty. No, that would be easy to fix. She would just have to divert a stream back to the pond to fill it up again. It also wouldn’t be hard to fix a leak in the wall that held the water. Magma made a wonderful glue once it cooled and hardened. No, the pool was gone. She supposed there had to have been a sinkhole underneath, though Celestia knew all of Canterlot rested on a solid bedrock foundation. Where the tiny pond had been was a pit well over thirty feet in diameter and extending far down. Celestia couldn’t see the bottom.

The Princess approached the edge of the pit in attempt to shine her light down and see the bottom only to pause after a couple steps. The light on her horn was flickering. That meant there were crystals nearby that negated magic, one of the biggest annoyances she had ever come across in the caves. She had swam in the pool before without experiencing any magical blockage so she assumed that the crystals were at the bottom of the sinkhole.

But… if the sinkhole was too deep for her to see the bottom of, and the crystals down there were blocking out her magic up here, how powerful were they? What event would charge crystals to such an enormous degree? It shouldn’t have been possible. Yet her horn continued to flicker. Taking several steps away from the edge, the light solidified once again. Summoning a small lantern, she quickly lit the flame and walked over to the edge again. When her magical levitation started to fail, she grasped the handle in her mouth. Once standing at the edge, the Alicorn peered down into the abyss.

Part of her expected the abyss to stare back. Fortunately, it didn’t.

Instead, she found that she still couldn’t see the bottom, so she decided to test how far of a drop it was. She dropped the lantern. Celestia watched as the flickering light of the bullseye lantern fell down… and down… and down… and down, until it finally hit the bottom and shattered, splattering flaming oil against the walls. Celestia wasn’t worried. She was literally underground. What kind of forest fire could start underground?

However, she was soon staring down again as the thought she caught sight of something writing around down there. A moment later, the oil was snuffed out. Celestia gulped and attempted to backpedal away from the edge only for the most horrible thing to happen. The stone edge she was standing on turned out to be a stone lip. The support underneath had fallen away when the sinkhole formed, weakening the edge of the pit. If Celestia had approached from any other angle, she would have been fine. As it was, the rock crumbled underneath her hasty step and she fell, too panicked to spread out her wings and the crystals below canceling her teleportation. Moments before she hit the ground, Celestia snapped her eyes shut and braced for an incredibly painful impact. She was pleasantly disappointed when she instead landed on something thick, soft, and incredibly spongy. Then she froze again, realizing she might have landed on a creature. After several moments of silence, she tentatively opened her eyes. She was lying on a bed of moss. Raising her head and looking around, she saw that the entire pit floor was covered in a thick layer of moss. The entire layer must have been several feet thick to absorb a fall like that without a single bruise on her body.

Shakily, with adrenaline still coursing through her veins, Celestia rose to her hooves. Here and there, she could see bits of light shining through the moss floor. The crystals responsible for blocking her magic must have been under the plants. The light only seemed to shine through the moss, failing to illuminate the walls at all. Trotting forward into the darkness, Celestia made it twenty steps before she found herself greeted by a moss-covered wall. No light shone through this, which Celestia took note of. The crystals were only on the ground. Turning to her right, she followed the wall of the pit, which curved gently to her right. After walking for well over fifteen minutes, Celestia stopped. Then she slapped herself with a wing.

“I’m walking in circles.” Celestia murmured softly, speaking for the first time. She really had been walking in a circle. She remembered that the pit was circular in nature, though she now ruled out it being a sinkhole. If there were no exits on the bottom, her only option was to go up. Attempting to teleport out would be useless considering the crystals that had blocked her magic from a distance were now right below her. Hmm… Distance…

Looking up, Celestia saw the light from the usual cave well over two hundred feet above her. It was a long fall. She was lucky the moss was there. Otherwise, she would have broken several bones. Sure, they would have healed in a few hours, but it still would have hurt. Spreading her large, white wings, Celestia gave a single powerful flap to ascend upward and return to the explored areas of the cave.

She didn’t move. Feeling a good bit more concerned, she gave another, stronger, flap of her wings. That, too, failed to move her, though she felt wind rush through the bottom of the cave from the current. Now feeling just slightly afraid, she started to flap her wings as fast as she could, attempting to fly up and escape this damned cave. Her frantic flapping served no purpose other than to tire her out. After several minutes of furious movement, she slumped over and barely made contact with the wall, which prevented her from falling to the ground. The Alicorn was panting heavily now, the exertion tiring her out far faster than it should have. It was almost like she had no…

“Magic…” Celestia groaned out, a tint of panic in her voice. The crystals were blocking her magic… all of it. Which meant that she had no natural regeneration, no powerful magic, no ability of flight, and no earth pony strength. She was just a mare trapped in a cave with no way out.

Something brushed her left foreleg.

Celestia yelped loudly and leaped away, her panicked flaps doing nothing to carry her farther. She landed just a few feet away to see a small thing flickering around in the moss. It was long, like a snake, yet seemed to be made out of the same crystal that was blocking her magic. Rather than ending in a snake’s head, the thing was rounded slightly. It was a pale blue and seemed to glow softly. It was also transparent, allowing Celestia to see that it was also hollow, a small slit in the end making it seem like a tube. The most surprising part was that it was moving toward her, swaying side to side like a slithering snake, though it was clearly a crystal.

“What the buck is that?” Celestia hurriedly breathed out, quickly backing away from the crystal snake. Her entire body froze and her blood ran cold when she felt something brush her right hindleg. Reluctantly, as if hoping nothing would be there if she didn’t look, Celestia glanced down. Another crystal snake was starting to wrap around her leg, flickering to and fro on her fur. A small trail of purple stuff was leaking around, the warm feeling sending a shiver down her spine and making her fur stand on end. She needed out, there was no doubt.

Quickly, she jumped forward. The sudden tugging forced the second snake to let go, and she sailed over the first. Landing on her four hooves, she quickly made her way toward the wall again. Frantically, she brushed her hooves against the moss in hopes of uncovering a small passage, just large enough for her to squeeze through, that would lead back up to the main caverns and allow her to escape these snakes. When the first touched her, she glanced over her shoulder to see well over a dozen of them making their way toward her.

When the second slid around her hooves and flicked against her foreleg, she ignored it. When the third and fourth started to climb up her hind legs, she stepped to the side and started checking the next section of the pit. When another two started to rub against her barrel, she flicked her wings to dislodge them. Celestia started to really panic when her wings were grabbed and rubbed.

By the time she had searched the entire cave, Celestia counted thirty-odd snakes loosely wrapped around her. They covered all four legs, both of her wings, part of her barrel, and one of them was even draped over her neck. She wasn’t restrained, though. Celestia had calmed somewhat when she found that she could still easily trot around the entire pit, which allowed her to continue- and finish- her search. There was no way out, yet the thought didn’t quite scare her as it had before.

Looking down and back, the Alicorn saw that a good portion of her coat had been dyed purple by the strange goo the snakes were leaking on her. They hadn’t stopped ever since that second one had touched her. In fact, it only seemed to get worse as more had wrapped around her. She wasn’t quite as freaked out about them, but they still did unnerve her. All she knew was that they were comfortably warm, the goo was pleasurably hot, and that they seemed content to just wrap around her. If that was all they wanted, she had nothing to fear.

Her fear most certainly returned and skyrocketed when they suddenly gripped down on her, just barely hard enough to hurt. Celestia let out a low whine at the sudden pain, her lack of advanced healing making her more worried about every injury she might receive. Just as her fear had skyrocketed, so too did her confusion when they loosened their grip and started to rub against her again.

Celestia froze midstep, every muscle in her body tensing up as she felt one touch her in an entirely new place. Quickly, Celestia flared her wing and threw the majority of the crystal snakes off of her back and wings. A quick jump and canter forward dislodged the ones from her legs, including the one that had brushed against her marehood. Quickly turning around, she saw that they were closing in on her again, moving at a slightly faster pace. Spreading her wings in an instinctual desire to appear larger, she took repeated steps backward until her flank was safely pressed against the wall, unable to be touched by any of the creatures.

As her rump pressed against the mossy stone wall, she became aware of two things. The first was that there was a fire burning deep within her belly, the heat permeating throughout her entire body. It focused on her rump and she became acutely aware of the trails of fluid sliding down her hindlegs. How she hadn’t noticed her state of heightened arousal before, she did not know, but she was aware of it now.

The second thing she became aware of was the fact that the crystal snakes only wanted to help her. That was why the one had gently caressed against her soaked entrance, after all. They knew her pain and understood her desire and just wanted to relieve her of her tension. It didn’t sound too bad. She knew they would be gentle with her. Before she could come to a decision, one of the crystal snakes began to rise into the air like its namesake just in front of her muzzle. There, it began to sway back and forth, the strange sight being her only focus as she stared at the end of her muzzle.

The burning heat in her body rose in intensity as it continued to dance in front of her, the smooth and alluring movement near-hypnotizing. It wasn’t really affecting her though, Celestia was sure. It was just doing a little dance to try to convince her. She couldn’t lie, it was working. Surely such an elegant creature wouldn’t harm her? The Alicorn leaned forward to try to nuzzle it only for the transparent snake to sway back, just out of her range. Celestia took a step forward and tried again only for the same thing to happen, the snake staying just out of reach. Step after step, she followed it into the center of the pit, before she realized what happened.

The snake dropped to the ground, its task done, as she realized that each and every snake had draped itself over her again. They were rubbing against her coat much more furiously with three of them tracing lines against her flanks, making a strong shiver wrack her body. Celestia made up her mind. She needed relief and she needed it bad. These things would help her, there was no doubt. They seemed happy just to get to touch her. Breathing in deeply, Celestia felt her barrel expand as her chest puffed out slightly before she exhaled, the slow motion calming her significantly and clearing her mind temporarily. There was a thick, heady haze in the air.

She could smell it. It smelled slightly sour with a hint of grape and the air felt charged with magic, though she wasn’t sure how. The touch of the crystals against her coat was intoxicating. They danced and flickered against her, alighting nerves in pleasurable torture as she was almost routinely teased. Her tongue darted out and lapped at some of the purple ooze that was stuck to her muzzle and it tasted strange, almost unidentifiable. If she had to guess, it tasted almost like how sex smelled. Oddly enough, she heard nothing. There was the gentle rustle of the moss being brushed against, the quiet plop, plopof her arousal dripping to the floor below, yet the snakes themselves made no sound. The pit was awash in a gentle blue glow, the light from the hollow snakes illuminating the otherwise darkened area and allowing her to see the gentle care they showed her. Celestia closed her eyes. Whatever they were going to do, she knew she would enjoy it. Maybe it was just the desire talking but the idea of being relieved by magical constructs made her clit wink out thrice in quick succession.

That seemed to be an unspoken sign the snakes were waiting for. Celestia felt as several of them began to tighten their grips on her, though they took great care not to hurt her again. She could feel four or five wrapping around her legs, another two holding her wings out, and a final snake wrapping softly around her throat and gently coaxing her into straightening it as much as she could. A short moment later, she felt one brush against her marehood.

“Mm~” Celestia moaned out, her head almost dropping straight down. If it weren’t for the tube-like snakes supporting her legs, she would have collapsed. That one, single touch was powerful, electric, and sent shivering sparks through her body. It was addicting.

She felt her hooves leave the ground and so she opened her eyes, slightly turning her head. The snake around her neck loosened its grip drastically, allowing her to see what she wanted to. Her eyes widened at the sight. There must have been more of the snakes hiding under the moss because where there had once been thirty, there was now easily double that. Well over two dozen were wrapping around her body and lifting her into the air with ease. A momentary spark of worry lanced through her before the gentle touches of the multitude of crystals banished it.

“Eep!” Celestia squeaked out. In a single swift move, the snakes holding onto her left legs had pulled out and up, flipping her over onto her back while in the air. A moment later, she felt herself be quickly, though loosely, restrained again. Their grips were slightly tighter this time, not that she noticed.

The Alicorn’s white head dropped back again as another low moan was drawn out of her as the rounded head of a snake slid up her slit, slightly parting her lips just enough to allow a renewed flow of juices to platter against the floor, slickening her tailhole as it dripped past. Celestia felt a second, then a third snake join the first, light flicks and soft pokes being the only proof that they were still there. Each soft, gentle touch sparked another moan from the restrained and inverted Alicorn, the fire in her belly growing hotter and loudly screaming for satiation from the creatures. One of Celestia’s hindlegs kicked repeatedly when one snake, the first to touch her marehood, pressed its tip against her slickened entrance lightly, almost like a lover giving a gentle kiss.

Celestia threw her head back and let out a pleasurable scream as the snake coiled and pushed, using it’s magical strength to drive into her by several inches in the first go. The unnatural slickness of the creature allowed it to push open her wet, sticky walls with ease. White pleasure flashed across her eyes from the sudden yet welcome entrance into her hot passage. Her limbs tugged as she writhed, suspended in the air. There was nothing she could do to escape the pleasure, nothing she wanted to do to escape the pleasure.

The white mare sagged against the grip of the snakes as they held her in the air, supporting her weight several feet above the ground as she recovered from the sudden burst of sensation. The snake, buried at least four inches into her, rested there without motion as her marecum-soaked walls adjusted to its girth. It was not the biggest snake that she had seen, but Celestia was thankful for that. She knew that the creatures were letting her adjust first, which she realized was very thoughtful.

A moment later, her restful time ended when the tentacles, for that was what she realized they were, began to writhe and massage and tug at her wings, her horn, her chest, her breasts, her tail, and her flanks. Every inch of her body was exposed to soft, relaxing pleasure that helped to loosen her up and relax her interior walls. A moment later, another moan filled the pit as the snake buried inside of her began to slide forward ever so slowly, providing just enough friction and pleasure to her dripping marehood to keep her vocal, yet not enough to overwhelm her like it had before. An idle part of her mind realized that the snake had learned how much pleasure she could take and had adjusted accordingly.

Unlike any stallion she had ever lain with, the snake was capable of moving in ways no mortal could ever achieve. Even as it slid forward deeper into her, spreading the hot walls of her tight passage, it writhed and twisted, hitting nerves and sending pleasure coursing through her veins. It was also slick, so much so that there was not a single bit of discomfort, just fiery desire. It seemed to stretch on forever, inch after glowing inch sinking deeper into her depths.

Celestia tried to gasp, discovering her voice had failed her, when the snake pressed against her deepest barrier. Any farther and it would be in her womb, a thought that turned her on immensely. When her clit winked out, followed by a spurt of her marecum around the thick tentacle buried in her, she felt something gently yet firmly prod it, sparking another moan. The tendrils seem to react to the vocal proof of her pleasure as the one inside her began to withdraw, moving at a much faster pace than before. When her muzzle opened to let out another sound of sexual satisfaction, she felt something slide into it.

Celestia’s eyes shot open when she registered the taste of the snake inside her mouth. It tasted like blueberry mixed with raw magic. She could feel as the creature began to ooze its purple slime into her muzzle and she suckled, deeply enjoying the strong grape flavor that came from it. Celestia felt her tunnel warm slightly as the one buried deep in her began to ooze its own special form of precum into her passage, making her even slicker. Once the snake assaulting her marehood had withdrawn until only the tip was in, it thrusted back in powerfully, hilting within her in an instant. At the same time, the one in her mouth pushed forward and entered her throat, her own gag reflex suppressed by the purple slime she had swallowed already.

A pattern quickly emerged as the two tendrils violating her body began to move in time, the dual sensations of being using in two holes quickly pushing her toward her first orgasm. Each time the hot tendril in her winking slit shoved forward into her depths, the one in her mouth pushed itself deep into her throat. Both would pause for only a moment, twisting and flexing to send sparks of pleasure through her, before quickly withdrawing and repeating the process. Celestia could feel her own sexual end approaching quickly and, from the quickening throbbing of the crystal snake, she assumed the creature was close to.

A small, rational part of her mind wondered just what the construct would emit.

Another, more primal part of her mind just wanted to be filled by this thing’s cum.

“Mmm~” Celestia cried out as her back arched. Her contracting pussy massaged against the tendril that had hilted itself all the way into her hot depths before the throbbing of the snake reached a crescendo. A moment later, Celestia felt a small bulge force its way past her tightened slit, followed by another and another. When the first reached the end of the snake, she realized why it was built like a tube.

“MMMMM!” The Alicorn tried to scream put the snake deep in her throat stopped that attempt. She was sent over the edge as the snake in her marehood pulsed, a jet of warmth and pleasure being fired directly into her womb where it failed to quell the heat inside of her, only adding fuel. Her contracting walls forced another four shots of magical cum out of the snake even as several splashes of her own juices splattered against the ground behind and below her, even soaking her own rump.

The tendril inside of her pulled out quickly, several more spurts of it’s own thick cum splattering against her rump and further staining her coat. The one inside her mouth quickly retracted as Celestia felt warmth ooze out of her widened entrance, undoubtedly the crystal snake’s seed that had filled her womb up. Celestia sighed, assuming the experience to be over, only to be proven wrong when the one that she had entertained in her mouth pressed against her still-gaping vagina.

The monarch’s eyes widened, realizing that this one was almost twice as thick as the last. Before she could catch her breath to protest, the snake thrusted into her, spearing her on its tip and driving into her wet walls all the way to her womb where it thudded against her cervix, making her grunt and moan from the pressure and impact. Without giving her time to rest, the tentacle withdrew and pounded back in, setting a faster, rougher, more primal pace with her compared to the last one.

Oh Maker, how she loved this. The feeling of being held down and used like nothing more than a sex toy was turning her on immensely, heightening her own experience as the tendril pistoned in and out of her, loud shlicking and sloshing followed by angelic moans being the only sounds to fill the pit now. The other snakes had stilled, watching with almost rapt attention as one of their own had its way with her.

Another tidal wave of pleasure came and went, the sticky mess splattering against the snake and ground as she screamed, nothing silencing her now-nonstop cries of pleasure. Thrust after thrust, wiggle after wiggle, the newer, larger snake seemed to show no sign of stopping. It only grew faster, pulsing more often, and began to thicken inside of her slightly. A moment later, she felt the snake convulse, the spasms nearly sending her over the edge again in her heightened state.

A moment later, the dam holding her back collapsed as the first pulse of construct-cum shot directly into her womb and quelled the fire. Her own juices gushed through her tunnel and mixed with the strange cum of the constructs. Unlike the first snake, which had hilted inside her as it came, this one continued to pound away at her pony pussy, each thrust marked by another spurt of marecum that was forced out of her quickly-filing passage and another rope of thick seed that filled her tunnel and oozed out, sticking in her fur and making a creamy mess of her marehood.

Everything went black. The last thing Celestia was aware of was the second snake pulling out of her and splattering its seed across her back as a third rose up to her mouth and a fourth pressed against her marehood.

An Indeterminate Amount of Time Later

Celestia wasn’t sure when she came to. All she knew was that she was sticky, dirty, tired, dirty, sore, thirsty, and dirty. Did she mention dirty? Because she was. She could feel that the snakes hadn’t stopped after she had passed out. The fire in her belly was gone, entirely, but she wasn’t empty. As the Alicorn rose shakily to her hooves, she could feel that her womb was filled to the brim with the strange seed that the constructs produced. They had to be constructs. A crystal snake couldn’t be a real, living creature, could it?

The only thing Celestia was sure of was that there were a lot more than thirty. When she took a step forward, she could feel some of the sticky liquids begin to ooze out of her stretched marehood and gaping tailhole. Surprisingly, there was no pain, only a comfortable warmth from the cum and a sensation of fullness.

Her tongue darted out, lapping at her muzzle, only to discover that they hadn’t spared her mouth, either. It made sense, really. She hadn’t spoken the deactivation phrase. They likely only stopped because some safety protocol activated and prevented them from hurting her. She couldn’t deny that she rather enjoyed the strong grape flavor. If only she had been awake through it all.

Celestia snorted and spoke, her voice hoarse and weakened. “That’s it, I’m going back. I’m going to keep going back until I can outlast them. That’s too good of an opportunity to pass up.”

Horny slut of a mare or not, she wanted to experience everything they could do to her. For Maker’s sake, they had used her tailhole and hadn’t even bothered to wake her up!