The Sun Tyrant

by ClanCrusher

Rating: mature
Tags: Alternate Universe, Romance
Length: 3481

The villains may not have won in every alternate timeline, but it's difficult to say whether a lewd, forward, and fiery maned Sun Princess counts as a victory...

Not every world Twilight visited was a wasteland, and not every timeline ended with a victorious villain. Of course, some of those timelines might have been preferable to the forward, lewd, and incredibly lustful Sun Tyrant who missed her chance with the original world's Twilight…

Tags: [spoiler]Dubious Consent, Futa, Dominant Celestia[/spoiler]

Published 1970-01-01 00:00:00 UTC
Last updated 2017-05-20 00:29:08 UTC

Chapter 1

If anypony had ever worked up the nerve to ask her, Celestia would have admitted that the fiery mane was rather obnoxious. It was wild, unpredictable, somewhat annoying to maintain, and it cast distracting light everywhere. It also clashed with her regalia, and the new set didn't make it any better.

And yet, it was a necessary evil. The Celestia from a quarter century ago might have been shocked at her appearance, but the alicorn princess was nothing if not adaptable. The Equestria of twenty-five years ago could be handled by the motherly and mildly manipulative rainbow maned Celestia, but after numerous challenges to her throne and title, a new approach was necessary.

There were some perks to be sure. Royal Audiences were few and far between, and the beauracratic process had been shortened significantly, but now there was dissent, civil unrest, and endless cloak and dagger shenanigans. Unfortunately, it was still better than the alternative of being preyed upon by the likes of Discord and Tirek.

And yet, despite the more intimidation focused method of ruling, it was difficult trying to stave off boredom. Thus, she was almost pleasantly surprised when one of the royal guards entered the throne room, clearly anxious about something.

Schooling herself to react with bored disinterest, Celestia fixed the arrival with a glare. “Speak.”

“My deepest apologies, princess. I do not mean to disturb you, but there was an incident-”

“Get to the point,” she demanded.

A slight tremor traveled through the stallion's body as he collected his nerves. “There was a magical catastrophe at the edge of the Everfree Forest. When our scouts investigated, they found...” The guard trailed off.

“Found what?” pressed Celestia.

“Um...we found Twilight Sparkle, your highness.”

Her expression gave away nothing, but internally her curiosity was piqued. “And she's...not a changeling?”

The guard shook his head. “No, not even slightly. We performed every diagnostic spell we could.”

Celestia only pondered the quandary for a moment before reaching a decision. “Bring her here. I shall perform an interrogation myself.” Her tone left no room for argument and the stallion quickly scurried off.

Twilight Sparkle. That was a name she hadn't heard in some time. At one point, she'd been a promising student. At another, she'd been a wonderful companion. Now, she'd been 'seduced' by Queen Chrysalis, and kept her updated on every nefarious plan that went through the Changeling Queen's mind. It was thanks to her that she knew the location of every one of her spies, with the queen herself none the wiser. So what was she doing back?

No more than a minute later, the door to the throne room opened, admitting a full squad of guards and a single purple unicorn. Manacles were attached to her legs and draped over her back. Three binding rings decorated her horn, and a command collar was around her neck. Clearly, her guards weren't taking any chances.

And yet, Celestia could tell something was off. Her horn glowed, her own diagnostic spell prodding at the unicorn. The results made her eyes go wide. “Well now...is this an assassination attempt?”

The guards surrounding Twilight suddenly tensed, glaring at her suspiciously. A couple even leveled their spears.

“Put those useless things away,” ordered Celestia, clearly amused. “Your prisoner is only here by choice.” Turning her gaze towards Twilight, the fire maned princess looked at her expectantly.

The muzzled mare seemed to sigh before her horn glowed, the three bands coming apart at the seems. One by one, the chains clattered to the ground, breaking apart at the links and the cuffs until the unicorn was completely unburdened. “I wasn't trying to cause any trouble,” she murmured sheepishly.

Celestia couldn't help but chuckle at that, even as the guards backed away nervously. “You might as well drop the illusion, too. There's only one type of pony who could break a seal like that.”

The Sun Tyrant clearly knew what was coming, but the guards around her were a bit slow to catch on. With a bright purple flash, a pair of wings appeared, the guards around her murmuring in surprise.

“She...she's...”

“With the wings and the horn...”

“But how?”

“I'm rather curious of that myself,” finished Celestia, quieting the guards with a raised hoof.

The purple alicorn seemed to consider her answer for a moment before replying. “Well, it started with one of Starswirl's spells, and it's been nothing but trouble ever since.”

Celestia let out a laugh at that, spreading her wings and lifting herself off the raised throne, landing on the ground in front of her. “That would explain it. However, since my little Twilight is most certainly a unicorn still...you must be from an alternate timeline.”

Twilight's eyes widened and Celestia smiled. “Starswirl always was too clever for his own good.”

“It's not his fault other ponies are perverting his work,” protested Twilight.

“Perhaps not,” agreed Celestia. “But one could make a case that he was far too reckless all the same.” Sparing a brief look to the guards who had backed themselves against the walls of the throne room, Celestia waved them away. “Leave us.”

Not needing to be told twice, the guard ponies turned tail and quickly filed out of the throne room, the last closing the double wooden doors with a slam. Moments later, a shimmering gold shield surrounded the throne room.

Twilight was immediately on guard, though her tone remained nonchalant. “So what kind of encounter should I be expecting here? Are you going to demand the secrets to the universe? Want to travel to a few dimensions of your own?”

Celestia smiled and shook her head. “Hardly. I'm quite comfortable in my own dimension. I am, however, curious as to what brought you here.”

Twilight's head turned to follow her as she moved. “Curiosity,” she confessed. “I was wondering what could have possibly turned the benevolent Celestia into the All-Powerful Sun Tyrant of Equestira.”

“Oh? Was I not like this in your timeline?”

“No. You had a much better looking mane.”

Celestia chuckled. “Oh, I agree. But gently flowing pastel colors don't send the most pointed message.”

“And what message is that?”

“That Equestria is not to be trifled with, and the Sun Tyrant is not to be challenged lightly.”

Twilight sighed, her head drooping slightly. “So we didn't manage to get the Elements of Harmony here, either.”

The sun princess shook her head. “No, though you shouldn't speak of that as though it's your fault.”

“What? But this...”

“...is my responsibility,” finished Celestia. “Whether my mane is an inferno or a sunset, I am Equestria's Princess, and it is my duty to defend it, not just yours. I would be a rather poor ruler if I wagered my kingdom and the ponies within on a set of fickle magical trinkets, no matter how powerful they may be.”

Twilight relaxed slightly, giving the older alicorn a small smile. “Well you certainly sound like her, even if you don't look the part. But I could have done more. I have done more.”

Celestia was silent for several moments. “I believe I know why you let yourself be captured.” Twilight didn't respond, but her ear twitched forward. “Why don't you tell me what's troubling you? Perhaps I can still be a mentor to you despite our different timelines.”

The tea was just as Twilight remembered. Lavender scented with a touch of honey and sugar. Celestia herself, however, was quite different. Her responses were sharp and direct, and her questions dug straight to the point, casually batting away every attempt at obfuscation and redirection. It didn't take long for all the details about Starlight Glimmer to be revealed, and no small detail escaped her notice.

“It sounds as though that Crystal Castle of yours should be better guarded,” concluded Celestia. “Or perhaps my counterpart shouldn't be leaving time traveling magic behind little more than a locked gate.”

“Gee, thanks,” replied Twilight sarcastically. “I'll tell the Princess of Hindsight to get right on that.” Her tone was a bit of a departure from the respectful one she'd started with, but an hour of dealing with the Sun Tyrant's blunt mannerisms and pointed observations had quickly worn away her sense of courtesy. “I don't suppose you have any useful advice?”

“Plenty. But tell me, Twilight, why is your world worth saving above mine?”

Twilight's eyes traveled past where Celestia was sitting to the throne behind her. She had been prepared for this question. “Your sister got better.”

For the first time since their conversation began, Celestia seemed speechless. Twilight quickly filled in the details. “In my world, those trinkets worked. Far better than anypony could have hoped for.”

Slowly, the Sun Tyrant raised a napkin to her muzzle, wiping away a few invisible crumbs. “Leading with your best argument first, I see.” Her horn glowed and suddenly the tables, chairs, and dishes were all teleported away. Twilight quickly scrambled up from her seat before it too vanished. “Answer me one final question. Was I any more successful in seducing you in your world?”

“W-what?! We've never had that kind of relationship!” sputtered Twilight.

“Really? You've never been curious?”

“Well...”

Celestia smiled, her horn glowing and causing a wave of power to pass over the throne room. “How familiar are you with suppression fields?”

The smaller alicorn shivered slightly as the wave passed over her. Experimentally, she tried to move the remaining teacup, only for it to wobble, shake, and fall to the ground. Gritting her teeth, she tried again, pushing back the aura as best she could while trying to get the levitation spell to work. Even as it slowly rose though, Celestia's aura intensified, pushing it back towards the ground. “While you can't use unicorn magic while maintaining a field, your opponent is a unicorn trying to fight you above the clouds. I hope you haven't been neglecting your Earth and Pegasus magic.”

Twilight's eyes widened as she saw the princess' wings spread and her body shift into a takeoff stance. Her smaller wings spread reflexively and her hooves shifted back...and in the next moment she sprang.

Two trails streaked around the throne room, one violet and one a fiery orange. With dizzying speed, the trails met, clashed, separated, and collided again, sending showers of color down to the floor. While the area was spacious, the speed at which the two alicorns moved forced them to bank and turn constantly to avoid the gold shield at the perimeter.

It was clear to Twilight almost instantly that Celestia was toying with her. Any hope she had of outmaneuvering the larger alicorn was dashed as Celestia kept pace with her, gracefully cutting through the air and turning just as fast. Even a sudden stop and turnaround didn't throw her off for long, and each body-check and nudge from her larger figure threatened to send her off course.

The unofficial rule when it came to this particular game was to try and force the other pegasus to the ground. Normally it would have been done with a bed of clouds beneath, but there was little time for a cushion now. This was going to require something special.

Pumping her wings, Twilight got some distance and raced towards the shield. Instead of banking, however, the alicorn landed hard on the shimmering surface with all four hooves. With a small grunt and a hard flap, the princess shot back towards Celestia. For a second, the two were heading straight towards each other, but at the last moment, Celestia banked.

It was the opening Twilight was hoping for. A violet trail streaked just below Celestia's legs and then upwards above her head. For the second time, her hooves impacted the shield, this time on the ceiling. Resting there for only a moment, Twilight pushed off hard, streaking straight towards the Sun Tyrant's back.

Several things happened at once. The suppression field dropped and Celestia rolled over, a devious smile on her features. It was too late to change course though, and far too late to prepare another spell.

Her body impacted Celstia's chest, and suddenly the smaller alicorn felt her legs and wings wrapping around her as the two of them went into free fall. With her greater strength and mass, twilight felt herself being turned around, her back now hurtling towards the floor. Bracing herself, Twilight closed her eyes and prepared for the impact, only to feel the familiar tugging sensation of a teleport spell gripping her.

FWOOF!

Instead of a hard marble floor, Twilight's back hit a soft bed while Celestia's mass pressed against her stomach, her muzzle gently caressing her neck. Stunned, Twilight didn't react to the rapidly changing situation until she felt a nip, her body jerking in surprise. “Princess! We-”

“Should enjoy our brief time together,” finished Celestia for her, murmuring softly in her ear. “You forget, my dear Twilight, I am a tyrant, and tyrants take what they want.” Despite her demanding tone, her kisses were quite gentle, slowly trailing up the side of her muzzle before pressing firmly against her lips.

Warmth flooded through the smaller mare's body, a moan escaping, only to be swallowed by Celestia's eager mouth. Her fiery mane seemed to burn all the more brightly as she followed up with her tongue, teasing and dueling with Twilight's own, leaving her breathless once she finally pulled away. Even then, she was barely given a reprieve as firm hooves stroked her sides and flank; squeezing, rubbing, and soon drawing out a surprised moan.

“It has been far too long since I've had an opportunity to 'reward' you for all you've done,” murmured Celestia, her horn glowing and putting the suppression field back in place, quickly sealing away any hope of teleporting.

Gritting her teeth and focusing her mind, Twilight tried to bring her Earth Pony magic to bare, her hind legs scrambling against Celestia's sides as she tried to get some leverage, only for the larger alicorn to drop her hips and push her firmly back down to the bed. “Need more practice, I see,” she teased.

“That's not...you're just bigger!” protested Twilight.

Celestia simply smiled and stroked a forehoof through Twiliht's mane. “Then how about this? Look me in the eye and tell me you're not the least bit interested or curious, and I'll drop the suppression field.”

The tyrant's golden eyes stared pointedly into Twilight's own, the smaller alicorn opening her mouth, only to close it again, a bright blush spreading through her fur before she looked away in embarrassment.

“Think of this as a victory for us both,” said Celestia, her head dipping lower to Twilight's stomach, nuzzling just below her forehooves. “You don't have to compromise your relationship with your Celestia, and I do not have to worry about the fallout of taking a lover for a night.”

Twilight's mind was racing. Was she curious? Yes. Was she stressed? Very. Did she have any real chance of escaping? Experimentally, her hips bucked and her body wiggled, prompting a chuckle from the larger mare. Her body slid downwards once more, her forehooves wrapping around Twilight’s hind legs and spreading them apart, exposing her moist marehood.

No...escape probably wasn't in her future.

“If your Celestia doesn't have plans to seduce you, she'll be passing up something truly wonderful,” murmured the tyrant, her warm muzzle trailing down Twilight's chest until her lips were poised right above her marehood.

“Princess, I don't-nnhh!” Celestia's tongue attacked her mid-sentence, the flat, broad appendage slowly moving across her marehood and back again. Her legs squirmed, but remained firmly held in place, another moan escaping her as the tongue began to delve into her passage, a potent warmth spreading from the points of contact to her entire body.

Slowly, moans began to spill freely from her open mouth, her forehooves shoving at the sheets while her upper body wiggled back and forth. Protests and excuses were dashed before they could form as coherent thoughts, the larger alicorn showing off her skills that soon had her walls wet with arousal. Just when it felt like her body would be pushed over the edge, though, Celestia stopped, drawing her head back as the smaller mare whimpered from the loss of warmth.

“There is much more I wish to show you, my dear ex-studnet. If I remove the suppression field, do you promise not to flee?”

Celestia's playful smile and twinkling eyes seemed to indicate she was teasing her, but Twilight couldn't help but wonder if she'd actually give chase. Of course, those thoughts were being pushed to the back of her mind. In the here and now, her curiosity and arousal were winning out. With only a moment's hesitation, Twilight nodded.

“Splendid! Now, do follow these motions carefully. I'll be expecting you to perform this spell on me.”

“Wait, what?”

Brushing off her question, Celestia's horn began to glow. Dutifully, Twilight analyzed the spell, commiting the shape of the power to her mind as it built up before arcing out and striking her in the chest. Twilight recognized the base spell as a transformation one before her lower body began to shift, redistributing her mass and forming a new growth between her hind legs that soon grew into a thick, violet phallus.

For a moment, all Twilight could do was stare at the newly grown stallion-length between her legs, questions racing through her mind. Questions which Celestia didn't give her time to think about before her soft white muzzle was rubbing along the side. “My, you've taken to this spell rather well.”

Completely alien sensations began to race through her body, the new appendage twitching and throbbing under Celestia's tender nuzzling. “H-how is it-”

“Oh it's completely functional,” murmured Celestia. “Completely capable of seeding any mare...save for an alicorn. We are notoriously difficult to impregnate.” Her tongue flicked out, drawing a squeak from the smaller princess, her newly grown shaft feeling incredibly sensitive underneath the tyrant's warm, wet licks. Her muzzle traveled the length, swirling around her head and sliding over her newly grown sack and aching balls.

“Mmhh...haa...” Twilight squirmed, her hind legs moving erratically until Celestia pinned them with her forehooves, her tongue making a long, slow trail up to her tip. “Princess...I...I can't...”

“Then don't,” she murmured. “This is an excellent time to work on your Earth Pony endurance.” Celestia's mouth opened wide and her head tilted forward, and soon Twilight found herself enveloped by the most potent and exhilarating warmth she'd ever experienced. The larger alicorn's muzzle was easily able to take her length, her powerful throat muscles squeezing ardoun her head while her tongue seemed to slide along the underside and twist around the sides and the top.

Twilight was finding it difficult to get anything resembling words out of her mouth. Cute cries mixed with pleasured moans, her body squirming with pleasure until Celestia stilled her hips with magic. Slowly, her head began to bob up and down, her head traveling the length, treating Twilight to a sharp contrast of intense warmth and cool relief, the larger mare only picking up speed.

For one brief moment, her head pulled back entirely, letting just her broad tongue cradle the tip, her golden aura grabbing the base and keeping it stationary as she teased her. The moment precum began to bubble up from the tip, she plunged her head back down, taking her all the way to the hilt and suckling hard while her tongue slipped out and stroked her sack.

It was all Twilight could take. With a sweet cry that tested the soundproofing of the room, Twilight thrust upwards, breaking Celestia's magical hold as she came hard into the sun tyrant's mouth. The suckling sensations only intensified, the princess drinking noisily while her throat muscles continued to contract and squeeze around her girth, milking her for every drop possible until there was no more to give.

With a pleased murmur, Celestia slowly withdrew, her tongue dancing along the length as she slowly released her, leaving a trail of warmth in her wake while the smaller alicorn was left panting for breath. “Now then...show me that Earth Pony stamina of yours,” she murmured, licking her muzzle and letting her magic take hold of Twilight's length.

“P-princess, I can't...I need time...”

“Do you?” teased Celestia, her magical hold feeling like several hundred soft fingers were touching and stroking along her stallion-hood, quickly coaxing it back to an aroused state. She could feel some of her Earth Pony magic assisting now, egged on by Celestia's caresses. “That's what I thought. Now then...”

Celestia's magic released her entirely, the larger alicorn standing up on the bed and turning around, her soft, sizable flank facing Twilight and her fiery tail flicking back and forth, giving Twilight glimpses of her glistening marehood. “Come serve your princess like a proper stallion.”