Twilight stood in front of Sunset Shimmer’s bedroom with a fire burning in her heart. That short walk was enough to renew her vigor. Rarity’s selfless act of lust had given her a clarity she’d not felt in a long time.

She was a hyper. One that had been blessed with the powers of godhood. A princess who needed to set an example for all of the citizens under her watchful eye every night. It may have been hard to accept before, but she knew what had to be done now.

It was time to teach a certain sun-loving upstart her place.

Twilight opened the doors herself, finding Sunset Shimmer with the covers of her bed kicked off to the side. The huge wet stains across the foot of the bed made it clear how long Sunset had been cumming.

“Forest Fawn. About time,” said Sunset, turning her head. “I’d been waiting for…”

If Sunset’s mood wasn’t already sour from waiting for her servant, it was now.

“Sparkle,” said Sunset with a sneer. “If you haven’t come here to admit defeat, then I don’t have the time to deal with you.” Though Sunset subconsciously noted that Twilight seemed strangely in control for somepony who was seconds away from flooding the castle so soon before.

Undaunted, Twilight strode in, the heavy doors closing behind her. “You’re going to make time for me, Sunset. I need to talk to you, and this can’t wait any longer.”

Sunset’s brow raised. Her cocks stopped gushing, sitting up on her bed. “Well. This is new. Make it quick.”

Twilight walked to Sunset’s bed, standing in front of her. Sunset subconsciously leaned backwards, knowing that Twilight could very well unleash her titanic cock at any moment. There would be nowhere for her to go.

“Do you remember the day we became princesses?” said Twilight, leaning forward, her heavy breasts jiggling pleasantly.

“What kind of question is that? Of course I do. How could I forget that day?” said Sunset, folding her arms across her chest. “Weren’t you just telling me about how important it is that we get our four hundredth anniversary of the ascension right?”

“I did. Tell me… Right after Celestia and Luna walked out, what did you think?”

Sunset was silent for a few moments. Her arms hugged her chest a bit tighter. “I thought that I was about to become the goddess I deserved to be. Why?”

Twilight leaned forward again, her hands sliding down her own long, slender legs. Her eyes met Sunset’s.

“Do you want to know what I thought? I was worried about spending eternity with you, since you seemed to hate my guts.”

Sunset closed her eyes with a frustrated sigh, rubbing the bridge of her nose. “Sparkle, I swear if you’re looking for pity…”

For that moment, Sunset had let her guard down. Twilight leaned in, her large purple breasts brushing up against the soft yellow pair. Sunset’s eyes snapped open, clutching onto Twilight’s shoulders.

“We’re going to spend eternity together, sister. I don’t want us to be enemies. I want to love you the way that I love Luna.”

Twilight let the words hang in the air. Sunset’s eyes relaxed, her grip on Twilight’s shoulder’s tightening as she pulled Twilight down on top of her. The bed was large enough to easily accommodate them both.

“Did you just call me ‘sister,’ Sparkle?” said Sunset, her voice dropping lower. “Is that what you want now? You want to be my sister?”

Twilight leaned in and kissed Sunset, their breasts pushing together again. Sunset’s cocks quickly began to throb in response, with Twilight’s own growing quickly beneath her. Her hands slid to Sunset’s ass, giving a soft rub followed by a sudden hard squeeze. Sunset, in kind, grabbed the back of Twilight’s mane and pushed her into their kiss, locking their lips.

“Mmh!” As Twilight’s thick meat kept growing, her tip poked into the bottom of Sunset’s huge tits, still growing as it slid past towards Sunset’s soft lips. The thick purple balls between their legs swelled as the stores of infinite cum caressed each other.

Sunset gave a soft lick to the tip of Twilight’s massive meat as it slid against her mouth, but just as quickly grabbed it and jerked. “Because if you want to be my sister, you’re going to have to earn it.”

Typical Sunset Shimmer, thought Twilight. Always wanting to be the one to pound her cocks into somepony else... Twilight turned over on her back, her soft purple ass bouncing as she slid down into position against Sunset’s twin dicks. Sunset grabbed the huge boobs from below, squishing them together like a pair of ripe melons.

“Nnngh…” Sunset was definitely playing rough. Twilight winced, but maintained her focus, keeping her ass jiggling against both of Sunset’s cocks. If she could pull this off, Twilight would never have to hear any more of Sunset’s bragging for ages. She knew she’d be in for a ride with the way that Sunset’s throbbing dicks slid up closer, rubbing between Twilight’s asscheeks.

“Mmph... You know, I think I’ve got a way to earn it that might interest you…”

Sunset almost rolled her eyes at how transparent the attempt was. “Oh, do you? This I’ve got to hear.”

“If I can… make you submit to me, then you and I are sisters. If not, I’ll suck both your cocks every night for a year. That sounds good… right?” said Twilight, giving her voice just that slight edge of uncertainty to draw Sunset in. If there was one way to make Sunset Shimmer do anything, it was feeding that ego.

Sunset’s brow raised, before she grabbed tight onto one of Twilight’s shoulders. “Hah! Me, submit to you? Never! I’ll have earned those blowjobs in the blink of an eye! You’re on, Sparkle!”

Twilight kept her face neutral, but she felt her heart beat a few ticks faster. This was it. No going back now.

“To be honest… my servant Spitfire got me good and worked up before you came in here. I really need to work off some stress,” said Sunset with a sinister smirk. “Hope you’re ready for a real hyper, Sparkle!”

More than you’ll ever know, thought Twilight.

The soft silk bed almost bent from Sunset pushing her heavy butt down into the mattress, her hips coiled like a spring. In an instant, she fired upwards into Twilight, pushing fast into Twilight’s tight ass and wet pussy, her hands gripping onto the soft pillows of Twilight’s chest.

“UNNH!” In an instant, Twilight’s hips recoiled up just as hard, sending the titanic cock towards the ceiling. She saw her cock continue to swell, feeling her enormous balls starting to grow along with them. She was still trying to hold back her orgasm, not willing to fire off just yet. Her hands curled in Sunset’s silk sheets, keeping a tight grip with the godly strength in her arms.

Sunset kneaded one of Twilight’s fat tits, holding her shoulder with her free hand and dragging her tongue across her neck. Sunset’s horn glowed, the ceiling of Sunset’s room sliding a few hidden panels open from her spell. Her cocks pumped up from beneath in a steady rhythm, working her balls up into a steady pulse before she thought of flooding Twilight. The sheer weight of Twilight’s royal scepter didn’t slow Sunset down in the slightest. She’d pounded that purple pussy and that studious ass too many times to be slowed down anymore by something as trivial as a few metric tons of weight.

“That’s it, Sparkle… grow for me, baby… grow…” whispered Sunset into Twilight’s ear, her fingertips working towards the ever-increasing base of Twilight’s massiveness. “I want that cock to get so huge that all of Equus can see it! I want every dragon in the mountains to cry at how tiny they are compared to you! I want you to get fucking enormous! Now grow!”

“Unnnh! Sunseeeet!” Twilight gave out a guttural moan as Sunset’s whispers found their mark. In hundreds of years, Sunset had learned all kinds of little tricks to make Twilight more horny. And, much as Twilight hated to admit it from time to time, Sunset was very good at knowing exactly which buttons to push to get the desired result.

Twilight’s cock rumbled into the night sky, the tip sliding through the hole in Sunset’s roof. Her growth began to finally slow, despite Sunset’s passions whipping Twilight into a frenzy. Twilight’s grip curled, every synapse in her mind at war with itself. The desire to knock Sunset down a few pegs was locking horns with the urge to just let loose and unveil how big she really was.

Sunset, though, staged an ambush.

“What do you think you’re doing, Sparkle? Trying to show me up, are you? Think you can win the bet that easy? Fine, then! I know what you need!” Sunset recoiled her hips, loading the heavy artillery.

“I said, GROW!”

Sunset pounded her cocks back into Twilight, both of them immediately gushing her infinite loads into her fellow princess. Gallons at a time burst from Sunset into the ever-hungry Twilight, both of the mighty alicorn dicks pulsing with Sunset’s power. The whole room slightly shook from the force of her endless orgasm, shaking the furniture and ratting the paintings on the walls.

Were it anypony else, Sunset’s hapless victim would have been bloated beyond all hope in an instant. And the effect of that kind of power from a hyper this strong would have sent the average mind into a lustful frenzy that would be impossible to escape from. Sunset’s face curled into a smirk through her grunts of release, remember when she’d turned Court Order from a studious law enforcer into the castle’s biggest cumslut virtually overnight. Still the best present that Sunset had given herself for her two-hundredth birthday.

Yet, here was Twilight, taking in all of it. Every last drop of that all-powerful seed that pumped into the night princess was drawn into her tight body. Sunset felt the squeeze of Twilight’s magnificent ass and her warm pussy clench down tight. So tight…

A little too tight.

Suddenly, that wonderful flow of alicorn juice that had been flowing live a river was less than a dripping faucet. Sunset struggled to push and pull, pound and grind her cocks, but there was no give.

“MMF! NNGH! Sparkle! What’s gotten into you!?”

Twilight leaned her head backwards. Sunset couldn’t see her face.

“You have, Sunset,” said Twilight offhandedly.

Sunset clasped her hands on Twilight’s tits. “Grrgh, Sparkle, if this is your idea of a joke…!”

Twilight turned her head, showing off her smile and her sparkling eyes.

“A joke? Hardly, Sunset. Why, I thought you could handle me, the way you were always going on and on about your cocks!” Twilight’s own royal scepter was still throbbing through the roof. There may have been strain in her body, but Twilight’s smile wasn’t cracking. “I don’t seem to recall you going a single day without talking about how incredible they are. Ever since…”

Twilight let the silence hang in the air for a moment. Her head tilted backwards barely an inch.

“Our final exam?”

“Our final… Wait.” Sunset’s eyes slowly went wide. Her grip tightened on Twilight’s hips as she tried to tug herself free of those divine holes. But there was no give. Not an inch. “NGH! No! You wouldn’t dare!”

Sunset felt Twilight’s body tense up. Her twin cocks were suddenly sucked deep into the fierce alicorn ass and tight pony pussy. A sense of dread washed over the young sun princess. Her cocks throbbed in anticipation.

“Oh yes I would.”

With a fierce clinch, Sunset could feel her infinite stores being pulled free, more gallons of cum flowing like a broken water main. The seed gushed deep within Twilight’s body, the gallons quickly absorbed for the power they contained. Twilight’s horn glowed fiercely, shining through the gap in the ceiling as her titanic cock pulsed with newfound strength, thick veins throbbing across the towering length.

“Nnngh! D-Damn you! UNNNH!” Sunset screamed to the heavens as her balls refused to stop. It had been so long since their last proper release, where the princess could really unleash a torrent. And yet she knew that every moment she came, it would be making Twilight stronger. Yet, at the same time, every passing moment only fogged up Sunset’s mind more. Her eyes rolled back, falling back onto her bed and grabbing onto the sheets. As her mind faded, she tore between spitting curses at Twilight and screaming in ecstasy that echoed into the castle.

As for Twilight, even her cock couldn’t contain such bliss forever. The pulses were getting too intense. She thanked the heavens that Rarity had been there when she had, or else there would have been no stopping her. The pulses gave way to a leak, dribbling Twilight’s seed down into Sunset’s room in thick ropes that slid across her hefty balls.

Twilight’s moaning was drowned out by Sunset’s yelps and screams of pleasure. Her lips were curled in a smile. Watching Sunset at her mercy was a perverse delight, one she admitted she relished. The seed from Twilight’s tower began to flood the bedroom, coating the floor in a thin puddle that rapidly swelled into a pond. Even the overworked drain in the center of the floor couldn’t contain it all.

Forest Fawn cracked the door open from the servant’s hall, already hearing loud shouts of pleasure. As Forest peeked through the doorway, her hooves were flooded instantly with seed. The unicorn gasped, opening the door further, only to be caught in a sudden wave of Twilight’s cum, washing her backwards through the hallway.

“Guh! M-Mistress, I… nngh! UNNNH!” The intoxicating power of alicorn cum pierced through Forest. Her hand dove for her nethers, rubbing fiercely as the warm seed kept rushing down the hallway. Somehow, she didn’t seem to mind.

Twilight’s hips slammed down. Sunset’s hands desperately gripped her huge purple tits. Oh, this was delightful.

She felt like a real hyper now. She felt like a goddess. The room had been flooded with her seed. Even Sunset looked like she couldn’t take much more of this pleasure.

“Satisfied yet, Sunset?” said Twilight. “I can go for a couple more centuries if you want to really test the limits of infinity!”

Sunset’s tense muscled clamped down as hard as her divine strength would allow. “AAAANH! I-I give up! You win! UNH! YOU WIN!”

With that plea of submission, Sunset’s cocks were finally allowed their respite. Twilight’s folds and her ass relented, the last few gallons of Sunset’s sensational release dribbling free until she was at last no longer cumming. The bedroom’s drain worked itself to drain the flood of seed that had pooled up to the edge of Sunset’s bed.

Twilight collapsed on top of Sunset, panting with the thrill of victory. She’d done it. Sunset had actually submitted to her. She felt an even greater sense of pride than when she’d become an alicorn.

“Unnh… f-fuck… h-haven’t cum like t-that in… decades…” Sunset said breathlessly, albeit with an odd twinge of pride to it. Twilight even noticed a hint of a smile on Sunset’s face, much to her surprise.

“You… nngh… liked that?” asked Twilight apprehensively.

“Are you joking?” said Sunset. “I’ve been waiting centuries for you to finally show a little backbone. All that teasing and taunting, and you finally went after my sexy self. Like a real hyper.”

Twilight felt her cheeks flush.

Sunset’s smirk went wider, pulling her cocks free of Twilight and rubbing them into her back. “Nngh… So I got what I wanted in the end.”

Twilight slipped off of Sunset onto the bed, staring up at the night sky from the open ceiling. Her head slowly turned, her hand finding its way to Sunset’s shapely ass.

“… Call it a draw?”

Sunset turned, her own hands sliding down the gorgeous curves. “Only this one time, sister.”

Twilight’s smirk matched Sunset’s. The new royal sisters slid up to each other and shared a passionate kiss, their eyes slowly closing.

Luna’s horn glowed, the orb in her hand showing the two students kissing passionately. She felt an immense swelling of pride on her chest, her cheeks hurting from trying to contain her joy. Even the surface of the moon she stood on seemed brighter somehow as she turned towards Celestia. “I told you it was going to happen one day, Tia.”

Celestia could only chuckle, watching Twilight and Sunset cuddle up, glancing up at Equus, trying to focus on Canterlot, far across the planet. “So you did. Twilight certainly has come a long way under you.”

The orb faded in a puff of smoke from Luna’s hand. “I simply taught her the fundamentals of hyperdom, the way you did with Sunset. She learned the rest on her own. All I had to do was watch Twilight grow into a fine young mare.”

“That reminds me. I’ve been meaning to ask: how long have you known that orb spell? The one that lets you watch other ponies that way?”

Luna slowly turned away from Celestia. “Oh…” She took slow steps across the moon’s rocky service, the plump dark ass bouncing enticingly. “A while.”

Celestia was quick to step behind her sister, delicately caressing her impressive rump. “Oh, you are just so delicious sometimes… You make me want to add another crater to this moon right now.”

Luna’s hips swayed back into Celestia, the fine soft ass caressing into her crotch. “I thought you’d never ask.”

Author's Note

Took way too long to finish this one up. But, it's done!

Like the "verse" it created, though. Might do more with it in future.