The ritual room was sparse; its owner was not the ostentatious sort, only preferring to work in utterly practical areas, with equally pragmatic means. For instance, chalk was far easier to work with, compared to silver which had become used more and more by his contemporaries, and worked just as well. The dapper white unicorn with a slicked back dark blue mane allowed himself a small smile as he stood outside the circle, allowing the power to passively flow through his horn, lighting up the room with a hellish red tint. And revealing, laying in the center of his chalk circle, a thoroughly trussed up, young earth pony mare.

She was a pretty little thing: just coming into estrus age, with a thin, lanky body that spoke to a life in a tavern or merchant shop instead of farm work. Her peach colored fur had been brushed and immaculately cleaned, and her grass green mane had been pulled back in a long, simple braid. Her emerald eyes gazed up at the unicorn timidly, swollen with tears and pure confusion, mixed with a great deal of fear. It was just... delicious. Once he wiped away her little mind and replaced it with his summoned succubus, the barwench would be an excellent lay, and he would start by skullfucking that innocent little face.

The circle itself began to glow with a deep, angry red as the unicorn channeled more and more magic into its array, and the mare gave a terrified cry behind her o-ring gag, muffled squeaks and drool pooling heavily onto the floor and her soft facial fur. The unicorn was certain she was trying to speak to him, more than likely to beg for her release. But frankly, he did not care. Not one... little... iota. A terrible snarling smile stretched the summoner's muzzle, a fit rolling through his mind as the euphoria of heavy magic use came upon him. The mare was an earth pony, a magic-less mudpony. But he! HE was the warlock! The summoner! The true power here, and none could question that now! A low cackle tour itself from the depths of his chest, and he glared down at the little mare eagerly. It would not be long now...

The glow brightened each second the ritual continued, the light soon becoming so bright that the mare had to close her eyes in order to protect them- the unicorn was perfectly at ease with the brightness, as unicorn eyes were developed to withstand any kind of light exposure and damage. He stared into the center of the circle, guiding the fel magics from the calls' portal towards the tied up mare. But something was very wrong. In his long experience, the summoner knew that demons were eager to get into the mortal world, and usually would not hesitate to manifest, even inside a pony body. But this spirit.... this demon was strong, and was pushing away from the summoner. Almost like it... was going to...

With a sudden snap, the mare's tail, which had been tied tightly to her braid, suddenly broke loose and, in the earth pony's panic, began to swish frantically, obliterating an entire side of the summoning circle. Magic roared loose of the carefully planned array, and the summoner stared in shock.

"That fucking TAIL!" he roared, voice distorted and cracking in his incredible rage... and rising horror.

Turning, the summoner quickly began to sprint for the door of the summoning room, eager to get some space between himself and the rising demon. Feasting on the mare should slow it down, he reasoned, and give him enough time to come up with a plan of attack to finish it off and send it back. It should only be a simple succubus, after all, hardly a threat for a mage of his caliber, with a plan. His head turned to send his magic for the door, and-

"Hello there."

Fuck.

Standing between the unicorn and the door was easily the most gorgeous mare he had ever laid eyes on. And the most dangerous. Dark pink, luxurious fur coated a body proportionately perfect in every way imaginable, each curve designed to be the peak of attraction. Her legs were log and graceful, geometric and arcane fur tints coiling up them like snakes and ivy. These glowed with a soft blue light, and were filled with terrible magics. To his shock, the demoness was an alicorn; each of her sleek feathers shimmered between hues of pink and red constantly, and her horn was long and pike-like, looking all the world like a crystalline spearpoint. And her mane... her mane was what truly terrified the young summoner. It shimmered and swayed with a breeze, and hearts, chains, and arcane symbols floated about it in its nebulous pink-yellow-white depths. The sign of an incredibly powerful archdemoness.

Her eyes, a deep smoky orange in color, widened slightly they took in the summoner, and the archdemoness gave an amused little smile, showing off a mouthful of razor sharp incisors and long eye-teeth.

"Well, well, well..." she murmured quietly, and the familiarity of her voice rang alarm bells in the summoner's mind instantly, "Nebulae Gaze... second son of Guiding Light, Lord of Canterlot. Does your father know you're summoning lust demons in your spare time? Naughty, naughty little colt..."

No... no, no, it was... impossible... there's no way...

"Cadence?" he choked out, voice very tiny, "But... how..."

He had stood beside his father during the Revolution; when Princess Cadence and her cronies had arrived to confront the Council and the Archmage, Nebulae had used his own magics to help the Council and the Archmage to battle them. He had seen, with his own eyes, the disintegrating body of the Archmage as he had formed the portal to Tartarus, the same portal that had ripped all of the rest of the corrupted, foolish royals into the hellish depths, paving the way for the true Equestria. He had studied the Archmage's spell himself for months after, and had been comfortable in the fact that there was no way for the ponies trapped there to break free. But now... Cadence herself...

Without even a flash of magic on her horn, Cadence was suddenly at his side, a single, beautiful feather trailing up his spine, leaving a fiery line of arousal that spread through Nebulae's body in a heartbeat.

"How what?" she whispered alluringly into his ear, which quickly began to twitch madly, "'How am I alive?' Or, 'how am I an archdemoness?' See, those questions actually go together! You all reeeally should not have sent us all down together. He gave me, gave all of us, something to survive for. And we found oh so much to do in Tartarus...."

A thick red tendril, slick and incredibly warm, slithered across Nebulae's cheek, and he flushed as a little whimper rose unbidden from his throat. Cadence's grin grew positively feral, and he could see a black glow in the back of her eyes.

"I battled demons daily," she hissed to him, "And lost, so many times. So many FUCKING times! All of us did. Do you know the time differential in Tartarus? How many years pass in Tartarus for every one here? We've been there for centuries. And we've been learning..."

Nebulae desperately knew that he had to escape and warn his father, warn all of Canterlot, but Cadence's eyes held him fast, and the tentacle wound tighter and tighter every second. Her power was far greater than any demon he had ever faced before.

"I'm so grateful that you called out for a lust demon," Cadence cooed, her angry seemingly having bled away as she let out a positively mad little giggle, "I had just finished up my improvements on the Realm of Lust with Twilight, and we were starting to get dreadfully bored of making escape plans."

And that's when Nebulae spotted it. The source of the tentacle; trailing to the back of the summoning room, and right through his oaken wall. Right into a portal, straight to the pits of Tartarus itself. Terror rose, consuming his heart and mind as a loud, low rumble echoed through the room.

"Seems my pet is impatient," Cadence whispered, licking the inside of his ear before stepping away with a ghost of a smile, "Ta ta."

And without a sound, Nebulae Gaze, head demon hunter and demonologist for Canterlot and the Canterlot School for Gifted Unicorns, vanished into the void.

********************************

The little Earth Pony mare let out a terrified wail as Cadence swayed over to her, and the archdemoness' muzzle wrinkled as she scented the acrid odor of urine. With a flash of magic from her horn, Cadence cleared away the puddle and stain from the mare's fur, and she carefully removed the o-ring from her muzzle.

"Please don't kill me or send me to Tartarus! I-I w-won't tell a soul, please please I won't tell anyponyIJUSTWANNAGO- Mmph!"

Cadence silenced the panicking mare with a smoldering kiss, her experience and magical might dominating past the mare's innocence and filling her with a deep-seeded heat. When Cadence finally pulled back, she gave the panting, stunned little mare a sly grin and wink.

"You're going to be fine," she whispered to her gently, laying beside the mare and kissing along her neck slowly, giving her ear a gentle nibble so she could relish in her little squeaks and shivers, "You'll be the first of a new kingdom. No more fear, no more pain... look at me."

Whimpering, the mare tearfully met Cadence's gaze, her body trembling against Cadence's. The archdemoness studied the mare's eyes for a long few moments... and smiled.

"Perfect," she whispered again, and darted forward to once more kiss the quivery little earth pony.

Her tongue gently battered the mare's aside, and proceeded to outline and trace every little crease and nook inside, dominating the mare utterly, but not like that pathetic Nebulae. This was a far more gentle approach, and it certainly got results. Moans and adorable squeaks rose unbidden from the mare, and she closed her eyes, leaning into Cadence. Magic caressed and massaged her still tied little body, and she gasped as the feelings became firmer, and fixed rather south on her anatomy. When two little points of pressure began to hold open her twitching, oozing marehood, she shuddered heavily and blinked her eyes open. And fell head-long into Cadence's utter control. The archdemoness' eyes gazed fully into her, magic pouring into her brain as the lust demon raised up her full might.

A choked cry rose up out of the mare as a thick, long tendril suddenly pushed down into her throat, pooling into her stomach. Sound was blocked out entirely as two unseen tendrils slid painlessly into her ears, and two smaller tendrils even wormed their way into her nose. Her mind began to go to a fuzzy and warm place, eyes rolling back in her head... only for her sockets to be covered by tendrils as well.

"Relax and give in, my pet."

Cadence's voice came from all around. The mare- Green Leaves, Cadence found as she sorted through her mind- let out a small mewl, trembling heavily. There was still a small cocoon of fear around her soul, but Cadence's giggle and voice were just so soothing...

"You will not be hurt, Green Leaves. I am going to give you pleasure unending. No more worries, no more struggles... no more hiding your innocence so that some guardpony won't take it... No my dear, you innocence is going somewhere where it will be very appreciated."

A thick, ribbed... something began to spread the mare's pussy wide, and she gave a stunned little cry, arching as much as her bonds would allow. Sexual pleasure had never really come up in her life before. Sex as she knew it was a scary thing, being crushed into the ground by a stronger male, being called names and struck. All she had ever seen or heard of had been abuse, and it had terrified her. But this... this was something far different than she had imagined. As the presence reached her maidenhood, something pulsed and she felt the tension give... and the thickness pushed deep into her body, without the slightest pain of her virginity being taken.

Her cry came deep from her core, just as the magical pop of the strengthening portal filled the room with rushing air, not that Green Leaves could hear it. Her entire world was the thickness pummeling her little sex, bringing to terrific heights of pleasure. Her inner walls clenched and struggled to keep the something inside, but its power was undeniable, and it used her as it wanted. Dimly, she could feel her body being moved, and a sense of weightlessness as she was lifted into the air. But before fear could set in, a tiny mouth began to suckle on her protruding clit, and she screamed as orgasms began to rip through her. Green Leaves flexed and quivered and swore in awe around the thickness still seemingly pooling inside her mouth and stomach, and she could feel the sweat frothing up her body. But she never, ever wanted it to stop.

Seconds became minutes, hours... time meant nothing as she was brought to orgasm again and again, her mind fracturing, liquefying... And standing below her place on the ceiling, Cadence smiled happily as she watched her magic transform the poor little mare, just as she had once been transformed herself. Green Leaves was just the start of something beautiful that would consume Equestria. Perhaps even, consume the world... but here she was getting megalomanic. That could wait. First...

"Come on out girls!" she called to the portal, beaming, "It's time for the party to get started!"

First out of the portal was Twilight Sparkle. Like Cadence, she was much taller now, all grace and poise as she sauntered through the portal, her bat-like wings twitching lightly. Her fur had changed little, beyond fur tints in arcane symbology that coursed down her sides and neck. Her mane shimmered just as Cadence's did, though it appeared to be a bright nebulae. But much about her body and soul had changed in Tartarus. Twilight Sparkle was no alicorn any longer, but nor was she a demoness. Through power and cunning, Twilight Sparkle had become a devil. A creature of order in a dimension of chaos, Twilight was the Archdevil of Power itself, having crushed the last holder of the title in a magical duel that had leveled half a Layer. Her single horn had been shed, and now Twilight sported a pair of slim, swept back horns that ran along her forehead and back over her ears. Grinning at her friend, she revealed a pair of long, needle-sharp eye-teeth.

She gave a curious glance at the squealing mare on the ceiling, and chuckled quietly.

"Cute," she admitted, grinning, "It'll be fun, setting up a harem for Dash and I."

She ran a steel-clad hoof down her dress, brushing away a bit of sulfur and ash; when she had been just a pony, Twilight Sparkle had never cared all that much for clothes to walk around in. But now, she liked to blend functionality with some personal style. A steel breastplate adorned her chest, while a purple-red battle dress ran across her withers and back, stopping just at her hips- a scandalous position that she just adored. Her forehooves were bound in steel greaves, but she had left her back hooves free of such heavy adornment, only wearing a matching pair of stockings.

"Won't it, pet?"

"Totally, mistress."

Rainbow Dash did not walk through the portal; she strutted. All long legs and cocky grin now, the rainbow-maned mare slinked up to Twilight's side, easily sliding underneath her outstretched bat-wing. Rainbow's mane was still its old carefree casual mess, though she now kept her tail wrapped at the base, for better control when Twilight needed her. Having grown to like adornment, like her mistress, Rainbow Dash's body was covered in a tight fitting leather- each hoof and fetlock was covered in the soft, supple material, as was her chest and sides, though her flight muscles and plot were fully uncovered. A slim collar wrapped around her neck, a little silver tag settled in the middle, showing off both of their cutie marks on each side. When she smiled up at Twilight, her maroon eyes showed nothing but absolute adoration. Twilight gently kissed the tip of her nose.

"Mmm, always love walking in to a room with a good background noise. Don't you, Fluttershy?"

"Oh definitely, Rarity. I'll have to introduce her to Mr. Cere-y when we get the chance."

Fluttershy and Rarity could not look anymore different from each other if they tried. Rarity's love of fashion had never died, even in the depths of Tartarus, and she had loved to make clothing for all of her friends when she could. As of now, she was dressed in a form-hugging black silken gown, which both hid everything... and left little to the imagination. Her mane was done up in a complicated bun, and a hell ruby gleamed from a silver chain on her neck, matching her bright red eyes. She too had become a devil, shone by the glorious swept back horns that framed her elegant manestyle.

And while Rarity was all grace and poise, Fluttershy was her feral counterpart. The butter-yellow mare went unadorned but for a simple brown leather collar around her slim neck. Her fur was puffed out and unbrushed, and tinted in several places with claw marks and large animal paws of many different species. Her mane was cut to medium length and pulled back into a thick pony tail, and her bat-wings were covered in ancient runes that glowed with a green light. Her eyes gleamed a bright, fel green, speaking to her demonic taint. While Rarity strutted her way to her friends, Fluttershy walked like a predator: light-footed, graceful, ready to pounce at the slightest moment.

A nest of vines erupted out of the portal and criss-crossed across the wall, flowers blooming across every inch and filling the enclosed room in a delicious apple scent. None of the girls seemed bothered or even phased as massive, opaque pods began to grow out from the vines on the ceiling, or that more than a few of the buds began to grow large mouths, much like Venus fly traps. A large tendril with a deep blue flower leaned down to rub against Fluttershy's cheek, and she gave a small giggle, nuzzling it back.

"Not now, little guy," she sing-songed, "We'll get you a seed-host in a little bit. Where's your Mommy?"

"I'mma comin'! Sorry, the Tree Mother was bein' uppity again! Didn' wanna let Pinkie Pie go."

"She's just so clingy, but it's a fun clingy! Hehehe."

Applejack had undergone a dramatic change in Tartarus, having been deposited deep inside the death jungle of the fourth Layer. After decades of being prey for the various deadly beasts and carnivorous plants of the jungle, she had managed to gather enough power from ambushed demons and devils to take control of the Tree Mother in the depths of the forest. Using her new power, Applejack had all but merged with her new plant-children. Her fur had a decidedly green tinge across her body, and tiny vines and flowers had interwoven themselves in it. Her father's Stetson was still stubbornly in place, though much the worse for wear, with a single blue flower inside one crease. Her mane was a series of intricate braids, with an entire vine plants slithered inside. The plant was quite sentient- her first "child" with the Tree Mother, and would protect Applejack with its life, or follow her every command.

She sauntered cheerfully over to her friends, giving the blue flower a nuzzle of her own before grinning at the others. Pinkie Pie was not far behind her compatriot. Compared to the other Elements, Pinkie Pie had changed the least. Her fur and mane were still the same bubblegum pink, though her eyes were a dark smokey orange like Cadence's. But her grin, still ever-present as always, had a decidedly manic tinge to it, and was filled with a shark-like amount of razor-sharp teeth. As she made her way out of the portal, she pulled a massive cart behind her, piled high with every kind of pastry, firework, invented machine, demonic crystal-drive device, that she had ever made herself, or taken straight from the other Archdemons and Dukes of Tartarus.

Pinkie Pie... no one really knew what Pinkie Pie had gone through when she had been dropped into Tartarus. During many battles and for times afterwards, she had gone missing, likely a prisoner for some of the demons. But when she would return, she was always more powerful, more chaotic... and just a bit more withdrawn. On this day, however, she was all smiles, rubbing warmly against each of her friends and giving a small bow to Cadence.

"So, Cadence," Twilight started slowly, a dark, gleeful grin stretching across her muzzle, "What's the plan?"

Cadence closed her eyes as she turned towards the door to the study, and the barely audible sounds of students further out in the hallway. Sweet, innocent voices, tainted and lied to by traitorous unicorns and their cronies. She could practically sense their magical signature on everything inside the School, and in the city around it. Much had changed during their tenure in Tartarus; they would have a lot to learn before their plans could truly take form. For now...

"We learn," she replied excitedly, wings fluttering, "And have lots and loooots of fun doing it."

"...I call the teachers."

"Pfft, fine, the rest of us will split up the students, Pinkie. Let's do this!"