Unfathomable Horror

Luna opened her eyes with a gasp. It was always the same, awaking in the dream of another. It was always a shock, like being suddenly plunged into a pool of ice-cold water. She had to acclimate to the new temperature, the light, even the smells and touch of another pony’s dream. She felt cold right away, as though frost was embracing her. Under her bare hooves, the ground was spongy and wet. It was only after a few moments of trying to discern what she was standing on did she realise she couldn’t even see the ground beneath her hooves. It was not unlike the vacuum of space, yet somehow it seemed much more consuming than even that, a complete absence of light. She then tried her best to peer into the impenetrable black before her, only to feel her eyes strain in retort of such an impossible task. She reflexively tried to will magic into her horn, only to be met with blue sparks at the tip. The magic she could summon was miniscule, not going far past the tip of her horn. What dream would not bend to her will? The somnambulist realm was under her subjugation. Who or what could possibly rebel against her authority?

Her face grew stern before she began to walk forwards, calling out into the unquenchable abyss. “Is that thee, Nightmare? Or thou art Tantabus?”

Luna’s voice did not echo in the dark. Her shattering of the silence eventually aroused a response, a low grumble that she felt beneath her hooves and sound in her ears. She tried to place its precise origin, but as far as she could tell, it came from all around. Her body tensed itself, every fibre and sinew taut in preparedness for battle. Soon, she received a reply.

“Nightmare… Tantabus… Mere spectres…” A low, grumbling voice sounded from all around her, “I am… beyond… them!”

Luna cringed at the sensation the voice wrought within her. The words weren’t merely being spoken and heard; they were pushing their way into her brain, tickling her ear canal. “Who art thou?” she asked, her cyan eyes trying to pierce the darkness for any sight of the speaker, despite knowing the endeavour as futile.

“My names are many… although I know yours… Luna…” the voice echoed her name, lingering on it and stretching out the syllables.

The utterance of it provoked a strange sensation across her body. It was a gross sensation, as though something was stroking her body in myriad places. Her haunch, thighs, and neck were touched by the voice, molested by the reverberations roaming across her body as she moved. As soon it finished speaking her name, the sensation stopped, and she tensed her muscles again before speaking. “Then what art thee?”

The voice let out a grumbling laugh. The surface Luna stood on vibrated under her hooves, as through the entire dream itself was in on the joke. When the deep, bellowing laugh subsided, the voice spoke again, “You... cannot even begin to fathom what I am… Our mere shape brings madness.”

“Prove it true. Allow Us to behold thee!” Luna demanded and came to a stop, arching an eyebrow as she looked from left to right, waiting for a silhouette to emerge from the shadows that surrounded her. “Where art thou in this damnable darkness...”

“This darkness is the dimness of my location. The unparalleled mind of a fool...” it growled in retort, and Luna could feel its irritation like an earthquake in the ground. “He prodded and poked at me with incantation. I ignored and ignored, but the repetition aroused me. I awoke from my slumber in the cosmos, then he beckoned me to this world. Now here I am, forced into a mind too small to contain me.”

The more it spoke, the less distant the voice became, the pauses becoming more infrequent. Luna felt surrounded, her jaw tightening. “Then leave. Grant this mortal peace and return from whence you came,” Luna suggested, her voice firm despite the entity’s potential scale.

“I loathed his interruption. But now, I do not wish to return to an uneventful slumber… I consumed knowledge and words, emotions and desires. I had been asleep for so long... I had forgotten what it was like to be awake,” it explained, the voice sounding from all around the alicorn.

Luna’s brow furrowed, unsure of where to look to address the faceless speaker. Still, her face was stern, eyes piercing into the dark. “If thou dost not leave this pony’s mind, We will have no choice but to act against thee.”

A gravelly, rumbling chuckle sounded from all around her. She felt the vibrations rumble in her chest through the ground. “I am as far beyond you, as you are beyond this vessel I inhabit. Let me prove it to you…”

Luna was almost afraid to ask, suppressing the urge to flinch as the next question worked its way up her throat. “How?”

After the question came from the princess’ lips, her eyes darted around as new sounds emanated from around her. Wet squelching, distant all-surrounding creaks, and a strong howl of air rush past her ears. The voice soon spoke again, and Luna could barely comprehend the words, “By proving your powerlessness.”

Suddenly, the solid floor she believed herself to be standing upon cracked. From out of nowhere, her eyes observed slithering tendrils arise from the floor just ahead of her. Even though there was no light source, they somehow glistened like a clean gossamer surface, lathered in some kind of fluid that made Luna cringe internally when its dense and musky odour reached her nostrils. The writhing mass of wiggling lengths that emerged from all around her indicated to the alicorn that her hooves were planted on something very much alive. Before she could fully unfurl her wings to take off, the ground split directly beneath her. Her eyes barely had time to widen before long slippery black prongs shot up and constricted themselves around each of her limbs. On reflex she tried to jerk herself out of their grasp, but they effortlessly kept her constrained, slowly inching up her hooves like fast-growing vines. Up close, Luna could fully comprehend their shape. The bulbous-headed tentacles that slithered up her body were suggestively phallic in shape, the tips comparable to smooth black mushrooms. Luna’s heart began to race with repulsive implication that only encouraged her desperate attempt to escape their hold, her wings unfurling to flap against their hold, the tentacles smearing her coat with an alien essence.

“What an exquisite example of fur and flesh you are,” the voice spoke again soon after grasping her, its slimy tentacles squeezing Luna’s large thighs. “Your face is symmetrical. Your body, well proportioned. Your build is fit. Except, in some areas you’re so... deliciously plump.”

“Doth not sway Us with flattery, creature!” Luna barked at the voice as her face burned, her wings relenting as fatigue quickly washed over her. Contrasting to the coldness of the realm, the tendrils that wrapped around her body were warm – a smouldering heat that Luna’s body couldn’t help but yearn for thanks to the cold that otherwise embraced her. Still, the alicorn was still sound of mind: her teeth grit in determination as she continued to defy the entity’s hold. “Release Us at once!” she demanded, continuing her weak struggle against the fleshy bondage.

“Release. Yes. A word with multiple definitions under differing contexts. I think both of us are in need of some form of it,” the entity replied and, despite its level tone, Luna perceived a knowing and coy tone in the omnipresent voice. “Rather than keep you trapped here,there is an experience this vessel has savoured that is framed in his mind as significant. I shall do it with you.”

Luna didn’t need any further elaboration as she felt the slimy tendrils dig even tighter into her coat, forcibly spreading her hind legs apart to bare her plump dark blue treasure to the abyss. Her heart beat against her ribcage as she dropped her tail down on reflex, completely hiding her privates behind a mass of ethereal hair, but she doubted that was enough to obscure her nethers from the gaze of the entity which bound her. She had just enough movement to look behind her, just in time for her eyes to land on a singular tendril reaching for her tail. No amount of deterrent tail-flicking could deter its advance, for it simply wrapped around her dock and forcibly flagged it to the side. She grimaced at the sensation of the frigid air on her puffy mare slit and the wrinkled ponut above it, her warm holes battling the cold. She was naked, bared to a thing beyond her level of thinking.

“A divine entrance. A sacred bounty. How many of your kind have desperately lusted for nothing more than just a peek at that which is bared so freely to me?” it asked her, the reverberations of the voice travelling across her cunt and core.

“Thou art trying to humiliate Us with rhetoricals. We know thy intent, creature,” she retorted, pouring the last of her energy in an attempt to pull free of the tentacles – a wasted effort that yielded nothing. However she knew her pride would forever be lost if she didn’t at least try.

“Stealing that which can so easily be taken would be an act without meaning. I am beyond carnality. Curiosity is what drives me. This vessel was insatiable in his search for enlightenment and, after scraping over each corner of his mind, I have come to understand the appeal,” it continued in a clinical tone, just as more of its tendrils arose from beneath the alicorn, each thick black hose forcibly reminding the alicorn of her impending fate. “I intend to penetrate you. Over and over and over, until I get the desired reaction. There is one sensation I have yet to experience, and I will achieve it with you.”

Luna didn’t want to have to beg. She tried to force herself awake, biting down suddenly on her tongue, yet the pain did not shock her back to reality. It was keeping her here somehow, anchoring her to the abyss. She reluctantly began to speak, her voice quiet and meek, “D-don’t do this. We beg of thee.”

A pause followed, but Luna wasn’t foolish enough to think it was considering her plea seriously. Its straightforward reply came soon after. , “I have already decided.”

Before Luna could speak further, a gasp suddenly sounded from her lips. Something had already begun to prod and tease at her entrance, something hot and moist. She forced herself to look back, seeing an especially thick tendril slide up and down her blue lilly, smearing some facsimile of precum over her plump cunny. She didn’t know whether to pin it on the shock or some subtle illumination of the realm, but she could see in exquisite detail the prong that touched her most intimate area. The ridged tip of the prehensile penis capped a long, angry, vein-covered stalk. The spongy black tip was only visible to her after an especially hard flick upwards, yet its immediate descent and focus back on her pussy assaulted Luna with unwanted feeling of pleasure, especially when passed over her hooded clit – the love nub coming closer and closer to exposing itself in a shameless wink. Luna estimated the organ to be as thick as a stallion’s hoof. As for its length, she couldn’t possibly surmise how deep down into the ground one would have to go in order to reach its primordial root.

It eventually stopped trying to lather her slit with its liquid essence. The smouldering organ was inert for just long enough to give Luna a ray of hope that its machinations would stop there. However, as soon as she allowed herself to be optimistic, it then slowly began to apply pressure to her twat. She could do nothing as the tentacle eased itself against her lips, her pink petals splitting apart as the tentacle tunnelled into her pussy like some oversized, obscene worm. She hissed in pain, her relatively inexperienced cunt quivering in shock at the impressive girth of the tentacle penetrating her. She immediately became acquainted with the smooth flesh and spiderweb-like network of veins that covered the eternal length, her clenching chasm doing nothing to slow the advance of the entity’s tentacle as it slithered right up to her cervix. The fullness made her writhe uncomfortably as the organ swirled around in her parted folds, the alicorn not much of a fan of feeling like a stuffed puppet.

“Now I know your taste. If only I had something to compare it to…” the voice spoke idly, pulsing the tentacle within her unwilling twat.

Luna had to suppress a vocalisation at the alien sensation, the supreme fullness forcing her to become acquainted yet again with pleasure. Never before would she have thought “being split in twain” would have had connotations with bliss, her clit exposing itself in a pleasured wink, flicking her nectar onto the ground between her parted hooves – a salacious signal of her defeat, her body succumbing to the pleasure her mind tried its hardest to blot out. Right away the tentacle slid out of her marehood, the ridge of its tip scraping pleasurably against her velveteen walls on its leave, stopping only to leave the alien tip buried within. Luna barely had time to brace herself before it rammed back inside of her, stretching out her soft walls and colliding with her cervix before sliding back out immediately after. She grunted at the carelessness of the force it applied. Aided by its shape and a combination of the fluids it spewed and her own – as well as the unmeasurable strength of the creature behind it – the phallic tendril began to piston in and out of her drooling, royal twat in a fast, harsh rhythm. Were a stallion behind such a harsh pounding, the act would have been considered sacrilege by the alicorn, yet she knew no threats from her could have lessened the intensity it had with her. Every thrust seemed different. The subtle push towards a new angle inside of her was unlike any of her lovers in the distant past, and the prehensile hardness was unlike any cock in the real world; in another context Luna might have enjoyed the strange, yet pleasurable, sensation.

Her mind had to constantly remind herself of how she didn’t want it. She was living in a nightmare, yet nightmares weren’t supposed to feel so good. The feeling of the fat, ramming prong was something to be reviled, not sought after. However, the longer it kept up its continuous deep diving plunge, the closer and closer a moan threatened to come out from behind her pursed lips. Her mare’s sheath clenched and squeezed around the penetrating length, but what horrified Luna was that she couldn’t tell if she was trying to force it out or keep it in. As tears began to emerge from the corners of her closed eyes, the tentacle pushed downwards on its next thrust, grazing harshly against her g-spot.

“Ah!” she moaned suddenly, an explosion of ecstasy that she couldn’t even hope to stem spreading all throughout her. Like a bundle of dynamite, the sensation rocked her soft pink trench, her cunt tightening like a vice around the womb-deep appendage.

“A vocalisation of pleasure? Could it be that you’re enjoying this?” The question came casually, delivered over the sounds of squelching sexual organs, the soaked cunt still being ruthlessly plundered by its hoof-thick tendril.

“N-no!” Luna stammered, trying to stifle yet another moan as the entity continued to harshly thrust into her cunny. “Thou makest an art out of vileness!”

“It was a delightful little noise regardless. It vindicates me. Let me hear it again.”

Luna grit her teeth defiantly at the request, to which the voice quickened its abuse of her snatch, swelling even thicker so that it pushed against every conceivable inch of her tunnel. The unfortunate side effect of its added girth was that every thrust scraped against the shallow bundle of nerves within her that made her feel oh-so-good. She kept silent on the first and her tear-stained jaw trembled on the second. On the third, she couldn’t stop herself.

“Ah, ah, ah!” It was like a crack of thunder shooting up her spine, triggering a paroxysm of loud moaning, a full spectrum of pleasured vocalisations that travelled seemingly for miles all around. She hated herself more than the entity at that moment, giving in to her body’s primeval instincts, helplessly savouring the tentacle plunging in and out of her sopping sex. It drilled deep, the thick ribbed veins ensuring that every thrust milked the most pleasure out of her.

“Ah, ah, ah.” The voice tried to echo the noise she made, the naturally flat and gravelly cadence doing little to match the helplessly pleasured wail that came from the alicorn. Luna wasn’t certain if it derived any actual pleasure from the rape or was simply carrying out the motions of sex. The notion that it was simply mocking her wasn’t something she dismissed either. “It’s not enough,” remarked the voice suddenly, its pitch growing a smidgen higher and betraying possible frustration. “I need more.”

Before Luna could let out a reply between her instinctive moans, she felt something prod at her other hole. Her wrinkled ponut became the focus of a second, equally thick tentacle that spurted a generous heap of fluid over the forbidden entrance. The lathering of goop shocked Luna into clarity, looking back over her shoulder with widened eyes. “No, not there!” she exclaimed, wincing when the phallic pipe began to steadily push against her asshole, her one-way tunnel initially refusing to yield under the entity’s pressure.

Much to her chagrin, the voice both ignored her plea and remained completely silent as it did so. She grit her teeth as the voice continued to push against her filthy hole, steadily applying more and more pressure until her ass finally gave way. A silent scream erupted from her mouth, pain and pleasure mixing as the tentacle sodomised her butt, spearing itself deeply as the other in her marehood continued its relentless ramming against her cervix. The pain in her plush rear was immense, her anal virginity robbed by the wiggling tendril that began exploring her colon.

“The entrance to this hole is very tight but the interior is spacious,” observed the voice casually, its voice now tinged with slight feminine undercurrent. The tentacle continued to swirl inside of her, Luna wincing through the pain until the sensation became dull, the pleasure of her pounded twat overshadowing the pain of the hole above it. The tentacle soon stopped however, and the voice vocalised once more, “I must fill it all.”

Luna was struck by confusion, her mind a little hazy from the constant stream of pleasure fed to her by the tentacle-ramrod in her cunt. Yet the meaning of the voice’s words soon became apparent to her when the intruder lodged deep in her ass began to swell.

Its capillaries forcibly overfilled with blood, or thickened by the simple desire of its owner. Luna’s body seized up as the tendril began to fatten its already unbearable girth deep within her ass. Under the tightness of her sphincter, she felt new veins push up against the ebony flesh through her anal ring, the piping hot fuckpipe beginning to enlarge and fill out the roomy space of her bowels. She held her breath as a new type of pain rocked her senses, a fresh wave of tears coinciding. The growing appendage spread her hole to its fullest extent and yet continued to grow in spite of it. Luna thought it very possible it was going to split her two, but the expansion stopped when it had reached approximately double its prior thickness. The roof of her twat was then sandwiched between each of the entity’s immense tendrils, the bulbous tips meeting at one point through the ceiling of her pussy. After achieving its goal, one tendril slowly began to slide itself out of her overfilled ass. She then forced herself to take a breath, her rectum burning with pain as its numerous inches exited, the enlarged appendage stopping when only its tip remained within her beleaguered, spasming hole.

Luna could only feel dread as the tendril pushed itself back in. She knew that its initial slowness was merely a courtesy and that before long it would begin to slam in and out of her in tandem with the one already violating her sacred blue flower. The thick bludgeon of a tentacle only wrought pain from her, its gradual build-up doing little to prepare her for the inevitably brutal assfucking, nor did the pleasure from her delightfully full cunt do much to assuage it. Now that each of her intimate holes were being ruthlessly raped by the apathetic entity, Luna didn’t think it was possible to fall any lower, her sobs soon joining the sound of squelching wet slaps. Although the fact she was still dreaming lingered as a thought in her mind, the pain and emotions she felt from such a flagrant violation were very much real. She loathed to think what state her waking body was in, her lower body squirming as her own juices made a mess of her thighs and the sheets, her body sheened with pain-induced sweat. After a few minutes of the double penetration, the alicorn silent in hollow acceptance, a third tentacle arose before her face, rivulets of clear, musky slime dripping from the cum slit to the abyssal ground below.

“I can’t help but notice this one isn’t fulfilling any purpose – I shall rectify that,” assured the voice, the tendril hovering before Luna’s face, “open wide.”

“Please-”

Luna immediately regretted any attempt to voice her appeal as the thick gob-stuffer forced its way past her full lips. The glands pushed down over her tongue, forcing her to taste the pseudo-organ as it filled her maw. The taste was slightly salty, like sweat, but the dense complexity of musk was present as well. When the flavour combined with the odour its closeness allowed her nose to pick up, it painted a distinctly masculine picture for her senses. It clogged her mouth, preventing her breathing as it scraped across her teeth to hit the back of her throat. She was barely able to gag before it forcibly rammed down deep into her gullet, bulging out her windpipe all the way down to her collar. Then it suddenly retreated back into her mouth. Luna desperately heaved in air through her flared nostrils during the small window the entity afforded her, forced to inhale the tentacle’s stank as she filled her lungs with life-saving air. Predictably, the tentacle began to move in and out of her throat at measured pace, making a pussy out of her face as it started to softly fuck it. Luna was strangled as she was forced to throat the thick, wiggling length. She could feel the spewing globs of slime slide down her throat, the smooth mushroom-shaped glans in her mouth pumping her stomach full of foul, abyssal liquid. She despised how warm it made her feel, and the fact her tongue was already used to the taste, her sinuses congested by the sexual odour emitted by a swathe of tentacles that began to rise all around her.

“Your holes. They spasm, squeeze and clench. You’re going to cum,” the voice observed, all three of its tentacles plunging in and out of the mare’s various holes. “Cum for me, Princess. Fall into ecstasy’s embrace. I need to know what pleasure looks like.”

Luna was suddenly flipped over, each tendril continuing to fuck each of her holes in harsh tandem. Choking, pain, and pleasure all congealed into one, indescribable experience. More tentacles arose, smaller in size, each one rushing to her already stuffed holes. They snaked their way inside of her, forcing themselves into whatever crevice they could fit, joining the triple plundering of her holes and spreading them beyond capacity. Her flared nostrils could barely take in air between the thrusting into her gullet and her own half-screaming, half-moaning around the spit-glazed tentacle. She couldn’t spare any of her brainpower to count the number of wiggling tendrils within her holes, trying her best to suppress the bliss she was feeling. However, try as she might, pain and ecstasy congealed into one unholy union. The worst part of it all was the positive reaction her body was having to such careless treatment. Each of her holes being brutally used for the sexual gratification of some uncaring, unfeeling entity brought out a feeling in her chest she tried to suppress. Why did her mind enjoy choking on fat tentacle cock? Why did the pain in her wrecked ass start to feel so good? Why did she never want the brutal pounding of her cunt to stop? She could do nothing but writhe in the disturbing bondage as the knot that had continuously grew tighter in her stomach inched ever closer to becoming undone, to unleashing an explosive climax.

Suddenly, Luna felt the tendrils thicken in her throat, ass, and gash. Every vein on every wriggling tentacle thickened, becoming plump with blood as the tips swelled within her. Luna’s eyes widened, her tear-soaked oculars horrified at what the sensation was reminiscent of. Each tentacle, big and small, became intensely hot as something thick and creamy shot up the obese black pipes. That was what sent her over the edge, the slight additional girth slammed the hoof down on her climax button. Her entire body shook as a rapturous climax shook it, tears running down her cheeks as pleasure overwhelmed her, the long tension of a spring-loaded orgasm was as new to her as the tentacles that ravaged her insides. She was on fire, engulfed within a blaze of pain and pleasure, her senses overloaded.

Deep within her stuffed bowels, cunt, and mouth, the slit of each tentacle-tip began to volley fire some approximation of jizz in her stuffed holes. Each thick rope fired from the tips like bullets, painting her insides white as each cavity was forced to bear the tentacles’ voluminous loads. Luna felt the heavy tide hit the back of her womb, stuffing her foal-box before the sheer volume forced the excess from her womb to gush out her sore cunt. What was happening to her poor pussy was tame in comparison to her ass and throat. The length embedded deep in her gullet remained still as it pumped her full of goo. As a result, her face grew bluer as she was steadily deprived of air, feeling each load as it travelled down the fleshy pipe and over her tongue before it was delivered directly into her stomach. She felt herself grow full from both ends, her gut slowly distending as torrents of thick spunk were unloaded into her ass and mouth. The pressure grew so strong in her assorted holes that cum was forced back up from her stomach, dribbling from the corners of her sealed lips and running down her cheeks as her eyes rolled into the back of her head. As the loads lessened in volume, the final act of the entity was to slide the smaller tendrils out of her tunnels mid-climax, spurting the remainder of their gross loads over her body. They marked her body with numerous thick white stripes, leaving her stinking of the entity’s cum until all that remained of the entity’s pints oozed from the tips of their fleshy black pipes like treacle.

After what felt like an eternity of waiting, the tentacles that plugged each of her holes yanked themselves out of her with a wet slick noise, the unplugged orifices leaking rivulets of spent cum. After Luna coughed up a throatful of salty cream, she started to pant greedily right after. She swallowed down mouthfuls of much needed air, her mind too foggy to react to the tentacles pulling her down to the soft, squishy ground below. After dropping her on her side, the tentacles that had violated her holes and kept her bound soon retreated, disappearing into the shadows, leaving only her breaths to disturb the silence thereafter.

She was left with her own thoughts. Her body had been utterly defiled, and she was forced to stew in that fact. She could feel the still-warm streaks across her body as well as the spunk that roiled in her insides – her monarch’s body now a receptacle for the entity’s load. The most hated attribute of the experience was the taste that lingered on her tongue. She could forget the pleasant pain from her stretched and abused holes, but the taste would not be so easy to wash away, no matter how many times she brushed her teeth and tongue.

Minutes passed. Luna’s side began to ache so she ruefully flopped onto her back, her wings splayed as she waited for life to return to her bones. Soon, her ears flicked at the sound of distant hooves, heavy steps that brought something closer and closer to her still body. By then she had gathered enough energy to weakly raise her head, her eyes trying to discern the shape of the outline that approached her. Her eyes eventually met with the face of that advancing shape, a passive face and a presence that made her heart race. The eyes defined themselves and, where she should have met with irises and a pupil, she saw two polished stones between parted strands of inky black hair. The smooth black eyes shone like pieces of smoothened jet, the surface speckled with small white dots.

“W-what art thou?” Luna asked in stammer, drawn into the featureless eyes.

“Everything and nothing. The incomprehensible given shape. I am beyond names, but in this form, you can call me Cosmos,” she replied, her voice deep yet feminine, the delivery monotone and flat.

Luna tore her eyes away from those belonging to the speaker, scanning the rest of the body they belonged to. Immediately, she noted the size difference between herself and the matte black mare. More daunting than her sister, the mare’s body was almost double the size of her own in both height and width. The broad-chested, muscle-defined body of the tall mare radiated a physical power that not even Luna could bring herself to deny. Whilst the physical stature of Cosmos was impressive – reminding Luna of the Amazons of old – she also plainly displayed an overflowing amount of magic. Atop her head, a long, spiralled horn broke through the shaggy mess of dense black hair. Furled to her sides were an incredibly large and dense pair of feathered black wings, so large and heavy they didn’t even look capable of flight. To Luna, Cosmos was a shadow of an alicorn, yet one far more impressive and intimidating than any in the waking world. A perturbing whisper made itself known somewhere deep at the back of her mind, one Luna couldn’t deny looking upon the mare standing above her. Cosmos was beautiful, in an untamed and platonic sort of way.

“Thou art-”

“A manifestation of that which surrounds you, binds you, created in your image,” she explained, encroaching on Luna’s personal space, coming to a halt between Luna’s hind legs and thereby preventing Luna from closing them.

“Thine body... why?” Luna was almost afraid to ask, but curiosity compelled her, trying to discern emotion – if any were present – on the mare’s face.

The eyes of Cosmos were focused between Luna’s thighs, glued to Luna’s stretched cunt, the slit still oozing with seminal fluid. “Because I will feel as you do. Think and experience the same desires. And right now, I want to… breed you. Just as a stallion would a mare.”

“But thou art a…” Luna trailed off, coming close to address the distinct problem with the proposition. However, in the midst of doing so, her eyes naturally fell downwards. The surprised exclamation she intended to release at the sight her eyes landed on became trapped in her voice-box, plugged by disbelief and horror.

Her gaze settled on a pair of beating, blood-filled appendages. The duo of hoof-thick cocks swayed beneath the mare’s stomach, weighty and erect, beyond outrageous in obscenity. Luna felt her twat and ass instinctively clench at the sight of such impressive examples of stallionhoods. Angry plump veins ran down both lengths, pumping libidinous magma into each of the mare’s eager fuckpoles. Luna flinched when the monstrous rods throbbed suddenly. Even if their owner hid her intentions behind a stoic face, the lustful desire of the organs attached to her were blatant. The top rod suddenly slapped against her belly with a hollow slap after a few moments of prolonged staring, the one beneath colliding with its twin in a similar display of erotic amour, precum oozing plentifully from the pair onto the floor beneath her. The cum-syringes were more than ready to carry out their owner’s order. Luna’s eyes were torn from both cocks by the sudden flex of grapefruit-sized cum churners dangling between Cosmos’ large thighs. The unenviable heft of just one of the she-stud’s cum-churners was enough to make Luna wince, yet Cosmos owned a pair. The pendulous sack dangled low under such a daunting weight of flesh and cum, flexing and clenching involuntarily with the consistent throbs and twitches of the cocks they were attached to. Cosmos looked more befitting of a virility god than a creature of the abyss, the dickmare’s next plodding step punctuated by a stallion-like snort from her nostrils as her smooth and potent-looking balls flexed with want.

“I have everything we need,” she replied formally, “I made sure of it.”

Luna blinked, gulping as she forced herself to look her in the eyes again before speaking. “Then why-”

“Did I shape myself after a mare?” she finished, tilting her head slightly. “It just felt right.”

“I- I mean We- We…” Luna was shocked out of procedure, her lips opening and closing uselessly as each possible opener was lost in the maze of her own head.

“My face is…” Cosmos trailed off, her facial features twitching. Luna watched as a smile slowly formed on Cosmos’ face. The latter’s plump, full lips spit to reveal a perfect set of porcelain white teeth. Cosmos raised a hoof, feeling her own face, grazing over her grin before allowing the hoof to fall again. “This is a smile, isn’t it? I’ve never had a face before – not one with lips anyway. I felt the compulsion. You put me in good humours. From the way you stir my loins, you must naturally arouse also... I want to follow this body’s other compulsions.”

Luna had nary the time to react before the mare walked over her. The hooves of the mare above became like bars of a prison cell, preventing the other alicorn from escaping the larger mare’s sexual clutches. Once their chests were aligned, Cosmos lowered herself, distributing her weight across the comparatively smaller mare. Luna winced, worried she would be flattened beneath such a large pony. The slightest difference in distribution would most surely lead to broken ribs – reality or unreality, not a pleasant thought either way. Her eyes focused downwards on reflex, the view obscured by the dense black fur and chest of the mare above her. Even without seeing she knew the approximate distance between her ruined holes and Cosmos’ turgid poles from the sheer heat they emitted. Luna was so afraid of the thick cocks twitching near her holes she almost forgot that they belonged to someone, only taken from her cock-induced stupor when Cosmos exhaled right into her face. Luna met Cosmos’ eyes and was taken aback by the astral familiarity she saw within them. In the mare’s unblinking eyes, she saw a night sky and the subtle, gradual passing by of stars – the slow swirl of an aging universe.

“Thine eyes, such a curious composition,” Luna muttered, engrossed. She had never been attracted to mares but, were the situation different, she would have been happy to spend all day looking at such a hypnotic gaze.

“Eyes are for seeing things, but I see all.” The obsidian stones shifted to something else entirely – Luna – simply reflecting the mare beneath her. “I can see into the fabric of reality and all contained within. For this moment however, you are all I need to see, my attention utterly consumed by your singular beauty.”

“We s-see,” Luna stuttered, forced to look away.

“Isn’t your face typically blue? Now it’s all red. Was it something I said?” she asked, her face remaining plain.

“N-nay, thy words are as poisonous as thine existence,” rebuked Luna, scowling up at the mare as her face burned red with a crimson blush.

The dark mare’s cheek tugged, betraying some amusement. “Then we shall commence with our bodily union…”

Cosmos lowered her hips, clumsily angling her broad she-cocks at Luna’s gaping holes. The blunted tips of her twin tools prodded at the smaller alicorn, missing their marks several times until they finally began to tease at her cum-covered orifices, the holes winking at the touch. Luna held her breath, readying herself in contrast to the blank expression of the mare above her. In one powerful thrust, Cosmos rammed each of the monstrous lengths deep within her, knocking the breath out of Luna’s lungs as the smaller alicorn was forced to hold onto the other mare’s hooves to steady herself. Her stretched holes were more than accommodating for Cosmos’ oversized cocks, but that didn’t mean the sensation of herself splitting apart from the huge, vein covered pillars, was lost to her.

In her eagerness to obey her body’s instincts, the abyssal spawn bottomed out within Luna immediately, the much larger mare’s waist meeting the smaller alicorn’s as the two bodies melded into one. Luna clenched her jaw at the intense pain that rocked her, hissing a gasp through her teeth. Although she readied herself for it, she still wasn’t prepared to have her cervix, her inner wall, collapse under such a powerful ram. She felt pregnant as the huge member stuffed her womb, creating a large rounded bulge in her stomach, her guts warped by the fat, blunt spears. The only saving grace was that the sudden sensation distracted from the other pain in her stuffed bottom, the second - equally large - member spearing deeper into her rectum than even the tentacles had.

The intensity of pain was disturbingly joined by equally potent pleasure, her stuffed cunt and ass-pussy responding too well to Cosmos’ colossal stallionhoods as they pulsed their piping hot, liquid musk within her. Cosmos leaned backwards after embedding herself, giving Luna a view of her own stomach. Her eyes widened in horror, seeing the rounded bulge of Cosmos’ cock through her stomach. She could even see the mighty member twitch within her womb, each predictable pulse causing her to wince as pleasure’s bell rang within her. Her body’s acceptance of the foreign appendage was immediate, and that scared her. She couldn’t stop her holes from clenching around Cosmos’ fucksticks, her clitoris’ ceaseless winking an endless display of carnal approval.

“I’m going to start breeding you now,” Cosmos informed her, dicks twitching with excitement within Luna’s soft, pink cavities.

The Princess offered no reply as Cosmos reared her hips back. She was forced to bite her lip as every rotund inch scraped against her insides on the way out, her holes gripping both poles so tightly she threatened to pull some of the mare out with her. She felt both stop just shy of withdrawing entirely before they shoved themselves right back in, her body jolting at the power behind the thrust. Luna wasn’t spared even a moment as Cosmos snorted like a stallion in rut, yanking her hips back again only to lance herself back deep inside, her massive and productive sack clapping into Luna’s fat asscheeks on every needy thrust that followed.

The rhythm Cosmos established was rudimentary but effective, the force behind her hips causing Luna’s face to cringe at the pain yet the Princess’ whole body shuddered with unavoidable bliss. To be so utterly stretched and filled, used, unearthed new desires within Luna that she wished had remained buried. She stifled the pleasured groans in her throat and kept her hooves firmly rooted to the ground, trying her best to not display anything that could be construed as enjoyment to the mare standing over her. She tried to distract herself in myriad ways. Counting, recounting bad experiences, mustering the most vile images in her head. But each veneer she tried to paint over her unquestionable lust was shattered like brittle glass by Cosmos’ jackhammering prongs. She couldn’t get them out of her head, the vascular pillars of ebony dickmeat. Even the veins, plump as they were, contributed to her feeling of engorgement. Every spreading inch of Cosmos’ twin glories was a persistent reminder that nothing in the waking world would come even close to the cocks embedded within her at that moment. Rather than focus on them, Luna tried to focus her attention on the black alicorn’s face; her expression was totally blank, filled with no other purpose than to look down upon the mare she was raping.

Rape.

Luna felt her cunt clench at the thought, her hooves curling in despicable delight as guilt ravished her thoughts. However, at that precise moment, something betrayed the darker mare’s expression, a singular twitch of the cheek, a lull in her thrusting, and a pronounced duo of throbs from her shafts.

Something occurred to Luna whilst Cosmos was conquering her holes, a pertinent piece of information that was the solution to everything. The avatar over her was all of Cosmos, her entire being contained within one body. Luna felt an idea shape in her mind. Breathing deeply, abandoning what remained of her pride, she angled her hips towards the mare’s above her. A silent reciprocation of the mare’s slow, mechanical thrusting. She allowed herself to enjoy the pleasure, her eyes closed in savoury appreciation of the sensation. The moans she kept subdued sounded from her gullet as her pleasure-centres were struck over and over by the repeated gyrations of the dickmare’s tireless hips. It felt taboo, as though she were committing some grievous crime, even if it was ultimately to serve good. To make her performance believable, she had to believe it herself.

“Kiss Us,” Luna requested, managing to croak out a few words between her moans.

The mare tilted her head before speaking. “Kiss?”

“Putteth thy lips to mine own,” she instructed, slightly raising her head, “and allow our tongues to skirmish.”

Luna saw no surprise in the face of Cosmos but, like before, her body betrayed her. Within her loins she felt the cocks thicken for a moment, as did her own black cheeks take on a tincture of red hue. Tentatively, with her brow furrowing, Cosmos lowered her lips down to meet Luna’s mid-thrust. The contact was the first time Luna had shared a kiss with both a mare and a creature not of this world. However, if Cosmos was honest with her prior comment, then Luna’s lips would be the first time she kissed anything. This afforded Luna an advantage she couldn’t afford to give up. Being the first to open her mouth, her tongue prodded the other mare’s teeth. When Cosmos opened her jaw, Luna set about attacking the much larger tongue behind the porcelain wall. She couldn’t put enough strength behind her tongue to even manipulate the much larger slab, but the owner soon got the gist of what Luna meant by ‘skirmish’. Cosmos began to swirl her muscle with Luna’s, pushing back against the smaller mare and invading her mouth. Just as Cosmos’method of fucking was brutal in its simplicity, the clumsy and domineering tongue-wrestle was something Luna somewhat expected from the entity. She closed her eyes, moaning around the slippery intruder, relying on her nose to breath since Cosmos took up so much space in her maw.

Luna allowed passion to carry her thereon. Her hooves wrapped themselves around the nape of Cosmos as Luna exchanged spittle with her rapist, trying to encourage the larger mare to come even deeper into the kiss they started. Luna’s ears were surprised to hear over the sound of the balls slapping into her ass a husky groan from the mare’s throat. Were she able to ascribe the huge fuckrams to anypony else, she might have been able to picture the lips belonging to another… if she wanted to. It had to be Cosmos. She had to frame the other mare in her mind, allowing her own love-button to wink and flick mare-nectar at the other mare’s image, pushing disgust out of her head to allow prurience to take its place. She ran her hoof down Cosmos’ neck, and made sure to milk her vascular slabs each time they thrust deep into her.

The longer the kiss went on for, the more personable Cosmos became, likely drawing on the memories of the stallion whose head they were in - as well as the token affections that Luna extended to her - as precedent. Her large hoof began to stroke at the side of Luna’s fluffy chest, her head tilted to drive her tongue deeper, and she angled her thrusts to ram against Luna’s g-spot. Luna felt her plan coming to fruition, her horn now scraping against the other alicorn’s awkwardly – if only she would remain still. To Luna’s frustration, their horns kept knocking, never maintaining contact for more than a few seconds. She needed Cosmos to remain still if she wanted to carry out her plan and, much to Luna’s lament, there was only one way to do that…

Her hind hooves raised as high as they could to wrap around the other mare’s plunging hips while the twin cocks continued to stir her insides with passionate abandon. Luna could barely control her limbs under such a merciless pounding, each thrust continuing to make her quake with bliss. Even still, the measured pace of the mare screwing her was too slow. She needed to remain clearheaded, with the idea and image still strong in her mind. She had read stories of mares so lost in the act of sex that their minds became nothing more than those of breeding sows, adhering to an ancient, feral need buried within them.

Luna had to fight to break the kiss, a string of spit bridging their mouths as she breathed heavily, looking deeply into the other mare’s questioning gaze. Luna swallowed down a hearty gulp of air before she voiced her salacious request, brushing the bigger mare’s cheek as she did so, “Breed me.”

Cosmos immediately reconnected their lips, and Luna could do nothing but hold on for dear life as the larger mare brawling sloppily with her tongue began to plunge her holes at an intense speed. The vein-covered tusks pulled out only to the medial ring before they punched back into her deepest areas, stabbing into her womb and guts in their reckless pursuit of ecstasy. Luna felt on a collision-course with orgasm, her mind flooding with a dense, pleasured haze. The tension in her stomach was pushed to the breaking point as the twin monoliths bloated inside of her. The massive orbs that slapped against her ass began to clench against her butt as they worked on feeding cum into both of their equally massive hoses. Luna reached climax before Cosmos did, her squeezing cunt putting up a pitiful effort to slow the larger mare’s hips. Not long after, Cosmos seized up, becoming rigid after she slammed every inch of her fat black tusks down to their obese roots. Luna’s mind was lost to a hazy tornado of pleasure and pain as the tips flared within her, overfilling her ass and womb with pints of thick creamy cum. A voice screamed inside of her, reminding her of the plan, as her insides were painted white, almost suffocated by the thick fog of rapture. Her horn spark on reflex at the alarm ringing in her head, her hooves coiling around the larger mare’s thick neck.

Rapturous orgasms shook both of their bodies, and Luna was somewhat surprised she didn’t have to fight to maintain the kiss between herself and Cosmos, the hulk of a mare surrendering to her inhibitions and remaining tongue-tied with the Princess. Luna could feel her dream-manifestation link with the entity, completing their union in more ways than one as she rode the rest of her climax. The two were joined in a rhapsody unmatched by any other, their gushing tide of creamy white goodness and delicious mare nectar seemingly endless. Luna broke through the fog in her mind, seeing the mare above her clearly in her mind’s eye. As the spew of Cosmos’ DNA gushed from her cunt and ass, Luna felt herself being gradually pulled away. But as she was, she made sure Cosmos came with her, the two bound at the lips and hip…