Sunburst's Age Regression Fiasco

by debrecen

Rating: mature
Tags: Starlight Glimmer, Non-consensual, Sunburst, Sex, Twilight Sparkle, Random, Porn, My Little Pony: Friendship is Magic, Fetish, Comedy
Length: 6134

When Starlight Glimmer accidentally casts an old age regression spell on Sunburst, she enlists Twilight Sparkle's help to undo it. The only problem is that some ponies take practical jokes way, way too far...

When Starlight Glimmer accidentally casts an old age regression spell on Sunburst, she enlists Twilight Sparkle's help to undo it. The only problem is that some ponies take practical jokes way, way too far...

The story was done on commission for Greenmare308.

Please leave a comment and any feedback you have; it would really help and make my day!

WARNING: This story contains elements of foalcon, age regression, magic, rape/foalrape, and other mature topics. Please be advised if you do not like or wish to read any of these things.

Please do not read this story if you are averse to the topics listed above under "Warning".

All of the characters in this story are ponies and are well above 18 years old in human years; likewise, the topics and content in this story should never be repeated in real life.

Published 2024-08-09 19:10:00 UTC
Last updated 2024-08-09 19:10:00 UTC

Sunburst's Age Regression Fiasco

Starlight Glimmer squinted at the dusty tome she had just pulled off the shelf. It was hidden behind an ancient spell book in the farthest corner of the Castle of Friendship’s library—because, of course, that’s where all the good stuff is hidden. The cover was faded, and the pages smelled like they'd been marinating in Twilight's obsessive cataloging since forever. A cloud of dust puffed out as she flipped the book open. She wrinkled her nose and waved the particles away with a hoof. "Sunburst! Check this out!" she called.

Sunburst, sitting nearby and engrossed in yet another thick volume on ancient incantations, barely glanced up. "Uh-huh, sure, Starlight," he muttered distractedly, his nose buried in his book. "Is it another one of those 'forbidden' spells that were probably forbidden for a reason? Because the last time you tried one of those, you turned my beard purple for a week."

Starlight rolled her eyes. "That was one time, and purple is a good look for you. Anyway, this one looks really interesting. It’s called ‘Regressus ad iuvenem.’"

Finally, Sunburst looked up, adjusting his glasses. "That sounds like... going back to youth or something. But probably in a really inconvenient way. What's the description say?"

Starlight flipped through the ancient pages with a little too much excitement. "Description? Description... well, it’s sort of faded. But how bad could it be? It’s not like this place has anything really dangerous lying around. Plus, you love testing out new spells!" Her grin widened mischievously.

Sunburst adjusted his glasses again, a nervous habit. "Starlight, we really shouldn’t—"

But before he could finish his sentence, Starlight’s horn lit up with a shimmering aura. She didn’t bother reading the rest of the spell’s info—where’s the fun in that?—and cast it directly at Sunburst. A burst of swirling magic enveloped him, and his eyes widened in shock. "Starlight! Wait—!"

It was too late. The spell swirled around him in a vortex of shimmering lights, and his voice cracked mid-shout. His glasses slipped down his muzzle as his body began to shrink, his limbs getting shorter, his robe drooping like an oversized blanket. Sunburst’s mane fluffed out, becoming untamed and adorably messy. The beard he was so proud of disappeared completely. By the time the magical dust settled, Sunburst was no longer a grown stallion but a tiny, chubby-cheeked colt with the biggest, roundest eyes Starlight had ever seen.

There was a moment of stunned silence. Sunburst—now a diminutive version of his former self—looked down at his new form, his glasses nearly falling off his tiny nose, and then up at Starlight. His eyes filled with a mixture of horror and indignation. "Starlight, what did you do?!" His voice was high-pitched, like a squeaky toy.

Starlight clamped a hoof over her mouth, trying to suppress the giggles bubbling up inside her. But it was no use. She burst into laughter, nearly doubling over as she pointed at the now-tiny Sunburst. "Oh my gosh! You’re so… so… cute!"

Sunburst puffed out his little chest, trying to look serious, but the effect was entirely ruined by his small stature and the fact that his robe was now trailing behind him like a cape. "This is not funny, Starlight! You need to reverse this spell right now!"

She waved a hoof dismissively, still chuckling. "Oh, lighten up! You’ve never looked better, honestly. And think of all the new things you can experience! Like... nap time!"

Sunburst narrowed his eyes—or tried to. It mostly just made him look like he was about to sneeze. "Starlight, I’m serious. You have to fix this!"

Starlight finally managed to reign in her laughter, but a playful smirk still lingered on her face. "Alright, alright, I’ll get on it. But you’ve got to admit, this is pretty hilarious."

"I don’t have to admit aAnything!" Sunburst shot back, his voice cracking as he tried to maintain some semblance of authority. But his efforts were in vain as he stomped a little hoof, producing a faintly audible squeak.

Starlight stifled another giggle. "You know, Sunburst, I really don’t like your tone. If you’re going to act like a grumpy little colt, then maybe you should just wait out your tantrum while I take care of this."

Sunburst's tiny face scrunched up in frustration. "A tantrum?! I am not throwing a tantrum, Starlight! I just… I just… ugh!" He stomped his hoof again, but the effect was more like a kitten pawing at a toy.

Starlight shook her head, grinning from ear to ear. "Sunburst, you are literally the smallest, grumpiest colt I’ve ever seen. Maybe you need a time-out."

"Time-out?!" Sunburst looked mortified. "I do not need a time-out! I need to be back to normal!"

But Starlight was already moving toward the door, her smirk firmly in place. "Oh, don’t worry, Sunburst. I’ll get this sorted out. I’ve just got a few errands to run first. But don’t worry—I’ll call Twilight. She’s great with magic, and she’s totally going to want to see this!"

Sunburst’s eyes widened in panic. "No! Don’t call Twilight! This is embarrassing enough already!"

But Starlight was already halfway out the door. "Relax, it’ll be fine. Twilight will get a kick out of this, and she’ll fix you up in no time."

Sunburst sat down on his haunches, looking defeated. "Starlight, please…"

But Starlight was gone, the door closing behind her with a soft click. Sunburst was left alone in the vast library, now seeming even larger due to his miniscule size. He sighed deeply, his little shoulders slumping. "This is going to be a long day…"

He looked around the library, which now seemed like an endless maze of bookshelves towering over him. The once-familiar place felt alien and daunting. Sunburst adjusted his oversized glasses, which kept sliding down his tiny muzzle, and tried to think of what to do next. He couldn’t just sit here and wait for Starlight to finish her errands. He needed to figure out how to reverse the spell himself—or at least, find something to do that didn’t involve embarrassing himself further.

"I can’t believe this," he muttered to himself, his voice still annoyingly high-pitched. "I should’ve known better than to let Starlight experiment on me again. But no, I just had to be curious about ancient spells..."

He looked down at his tiny hooves and sighed. "How am I even supposed to turn the pages of a book like this?"

Just then, he heard a soft thump from above. Looking up, he saw a book teetering on the edge of a high shelf. Before he could react, the book toppled over and fell, landing right in front of him with a loud ‘whump’. The force of the impact knocked his glasses askew, and he stumbled back in surprise.

"Great, now even the books are out to get me," he grumbled as he adjusted his glasses. But then, something caught his eye—the book had fallen open to a page that looked strangely familiar. It was the same spell that Starlight had cast on him: "Regressus ad iuvenem."

Sunburst’s ears perked up. "Maybe there’s a reversal spell here!" He rushed forward—or at least, tried to. It was more of a quick waddle, given his tiny legs. Reaching the book, he strained to see the page, but the text was too small for him to read easily.

"Of course," he sighed. "I can’t even read the spell book now."

He tried to use his magic, but his horn only emitted a few weak sparks. "This is just getting better and better," he muttered sarcastically.

With no other options, Sunburst decided to climb onto the book to get a better look. He struggled to pull himself up, flailing his little legs, but eventually managed to clamber onto the thick volume. Once on top, he looked down at the page and squinted at the tiny letters.

"Alright, let’s see… maybe if I just… no, that’s not it… wait, what’s this?" He leaned closer, trying to make out the faded text. "Aha! There’s a footnote here about reversing the spell! But… it’s all smudged! I can’t read it!"

He let out a frustrated groan and flopped down on the book. "I’m never going to get back to normal at this rate…"

As he lay there, contemplating his unfortunate situation, he couldn’t help but think back to how ridiculous this all was. If only Starlight had listened to him instead of diving headfirst into another spell experiment!

Sunburst sighed and rolled onto his back, staring up at the ceiling. "I guess it’s not all bad," he admitted to himself. "At least I get a break from all the adult responsibilities for a bit…” the stallion-turned-colt tried to convince himself.

Sunburst had been sitting on top of that old book for what felt like hours. The massive library around him seemed even more vast and intimidating in his shrunken state, and with every tick of the clock, he could feel his patience slipping away. He had tried everything he could think of—scanning through spells, attempting weak levitation, even considering chewing on the pages out of sheer boredom—but nothing worked. His magic was pitifully weak, and his little colt body was just too small to be of any use.

He plopped down dramatically, letting out a long, exaggerated sigh. "This is hopeless," he muttered to himself, his tiny voice echoing faintly in the empty room. "I’m going to be stuck like this forever. The youngest wizard in Equestria… literally."

Just as he was contemplating his fate as the world’s first pint-sized wizard, a soft knock echoed from the door. Sunburst’s ears perked up, and he scrambled to his hooves. "Fi-inally!" he exclaimed, his voice cracking with a mix of relief and desperation. "Come in, come in!"

The door creaked open slowly, and there, standing in the doorway, was none other than Twilight Sparkle. Her eyes widened in surprise at the sight before her. She blinked a couple of times, clearly trying to process the scene—Sunburst, once her scholarly equal, now a tiny, wide-eyed colt standing on top of a dusty old spellbook. She had expected something unusual, given Starlight’s message, but this? This was beyond her wildest imagination.

Twilight bit her lip, fighting to maintain her composure, but it was no use. A snort of laughter escaped her, followed by a full-blown giggle fit. "Oh… my… gosh!" she gasped between laughs. "Sunburst, is that really you?"

Sunburst’s face turned an adorable shade of red as he shuffled his little hooves, trying to look dignified despite the circumstances. "Yes, Twilight, it’s me," he squeaked, his voice more like a child’s than he’d ever hoped to sound. "Can you please fix this? I really need to go back to normal!"

Twilight finally managed to compose herself, wiping a tear from her eye. She stepped into the room, her wings fluttering slightly with amusement. "Oh, Sunburst, you’re just too cute! I don’t know if I want to fix this right away…"

Sunburst’s eyes widened in alarm. "What do you mean you don’t want to fix this right away? Twilight, I’m serious! I need to get back to normal!"

But Twilight just smiled down at him, a playful glint in her eye. "I don’t know, Sunburst. You make such an adorable little colt! Maybe it wouldn’t hurt to keep you like this for just a little longer. Besides, Starlight did warn me that you were being a bit of a grumpy wittle colt today."

Sunburst’s little ears flattened against his head. "I am not a gruUmpy colt!" he protested, his voice cracking in indignation. "I just… I just don’t want to be stuck like this! Please, Twilight, no more jokes—just fix it!"

But Twilight wasn’t about to let up. If anything, his protests only made her more amused. "Oh, you poor, grumpy ‘wittle’ Sunburst," she cooed, her voice dripping with exaggerated sympathy. "Does the wittle colt need a nap? Is that why you’re so cranky?"

Sunburst’s cheeks burned with embarrassment. "Twilight, I don’t need a nap!" he snapped, his tiny voice losing any semblance of authority. "I need to be turned back to normal!"

Twilight giggled, clearly enjoying herself. "Oh, come on, Sunburst. There’s no need to get all worked up. You’re just so precious like this! Maybe you need your blankie. I bet that would make you feel all better, wouldn’t it?"

Sunburst’s eyes widened in horror. "A… a blankie? Twilight, I don’t need a blankie!"

But Twilight was already rummaging through her saddlebag, which was comically large compared to his diminutive size. "Good thing I brought a few options!" she said cheerfully. "Let’s see… we’ve got a nice pink one, a soft yellow one, and ooh, this blue one is really cute! Which one do you want, Sunburst?"

Sunburst’s face was a mixture of embarrassment and frustration. "Twilight, I don’t want a blankie! I just want to go back to normal!"

Twilight pouted playfully. "Oh, come on, Sunburst. Don’t be such a grumpy-pants. You’ve got to choose one—how about the blue one? It matches your eyes!"

Sunburst groaned, realizing he wasn’t going to win this argument. "Fine, fine! The blue one, okay? Just… just please fix this afterward!"

Twilight’s grin widened as she pulled out the blue blankie and draped it over Sunburst’s back. "There! Now doesn’t that feel nice?"

Sunburst stood there, his tiny body draped in the ridiculously oversized blanket, looking completely defeated. "Can we please move on now?" he grumbled.

Twilight just giggled. "Alright, alright. But I think I know why you’re being so fussy. You must be hungry! That’s why you’re so cranky. Little colts like you need to eat regularly, after all."

Sunburst’s eyes widened in alarm. "Hungry? Twilight, I’m not hungry! I’m not even really a colt!"

But Twilight wasn’t listening. She was already pulling out a baby bottle filled with milk from her saddlebag. "Here we go! This should help you feel better."

Sunburst stared at the bottle in horror. "Twilight, I’m not a baby! I don’t need a bottle!"

Twilight just smiled sweetly. "Oh, but you do, Sunburst. You’ve been such a grumpy ‘wittle’ colt, and I bet it’s because you haven’t had anything to eat. You won’t feel better until you’ve had something in your tummy!"

Sunburst felt his patience wearing thin. "Twilight, this is ridiculous! I don’t need a bottle of milk—I need to be turned back to my old self!"

But Twilight wasn’t having any of it. "Sunburst, if you don’t finish this bottle, I won’t be able to help you. And we don’t want that, do we?"

Sunburst glared up at her, his little face scrunched up in frustration. "You can’t be serious…"

Twilight’s expression softened, but there was still that playful glint in her eye. "Oh, come on, Sunburst. Just one little bottle, and then I promise I’ll help you get back to normal. Deal?"

Sunburst sighed deeply. He could tell that there was no way out of this. "Fine," he muttered. "Just… just get it over with."

Twilight beamed and levitated the bottle toward him. "Good colt! Now, let’s get you fed."

Sunburst eyed the bottle with a mix of resignation and embarrassment. He knew this was utterly ridiculous, but if it meant getting back to his old self, he’d go along with it. Just this once. He took the bottle in his hooves, struggling slightly to hold it properly with his tiny limbs. Twilight watched him, her smile growing wider.

"Aw, look at you! You’re doing such a good job!" she cooed, clearly enjoying the situation far more than Sunburst would have liked.

"Twilight, please, no more baby talk…" he mumbled around the bottle, trying to drink as quickly as possible to get it over with.

But Twilight wasn’t about to stop. If anything, his discomfort only encouraged her. "But you’re just so precious, Sunburst! You’re like the cutest wittle colt ever! And you’re being such a good boy, drinking your milk all up!"

Sunburst groaned inwardly, but he continued to drink. The faster he got through this, the faster he could put this humiliating ordeal behind him. Finally, after what felt like an eternity, the bottle was empty. He let it drop to the floor and looked up at Twilight with a pleading expression.

Twilight stood there, her eyes twinkling with mischief as Sunburst looked up at her with a mix of hope and frustration. The empty bottle lay on the floor between them, a silent testament to Sunburst’s humiliation. He had done everything she asked, and now, surely, it was time for her to reverse the spell and let him return to his normal self.

"Okay, Twilight," Sunburst said, trying to keep the impatience out of his voice. "I drank the milk. Now can we please get back to normal?"

Twilight tilted her head, feigning deep contemplation. "Hmm, I don’t know, Sunburst," she said, her tone teasing. "Have you really earned the privilege of going back? You’ve been quite a testy little colt today, and I’m not sure if you’ve learned your lesson yet."

Sunburst’s eyes widened in disbelief. "Privilege? Twilight, this isn’t a reward! I’ve been through enough! Just tell me what I need to do to get this over with!"

Twilight’s smile widened as her horn began to glow with a soft, purple light. Before Sunburst could react, the magic wrapped around his tiny limbs, pinning him down against the cold floor. He squirmed, but it was no use; Twilight’s magic was much stronger than his own in this state. He was completely at her mercy.

"Twilight! What are you doing? Let me go!" Sunburst’s voice was a mixture of panic and frustration as he struggled against the magical restraints.

Twilight walked over to him slowly, her smile never fading. "Oh, Sunburst, you’re just so helpless like this," she said, her tone dripping with amusement. "I can’t help but want to inspect every little detail of this adorable form. You never know, there might be something else interesting about you in this state."

Sunburst’s heart raced as Twilight loomed over him, her eyes scanning his tiny body with a mix of curiosity and power. He tried to squirm away, but the magic held him firmly in place. "Twilight, please, this is really uncomfortable! Just… stop and turn me back already!"

But Twilight wasn’t listening. She leaned in closer, her face hovering just below Sunburst’s lower stomach. "Hmm, what do we have here?" she murmured, her voice low and playful. Her eyes narrowed as she spotted something small half-buried in his fur. "Oh, my, what a tiny little penis! Isn’t it just the cutest thing?"

Sunburst craned his neck to see what she was looking at, but all he could see was her face getting uncomfortably close to his stomach. "Twilight, seriously, you’re way too close! This is really weird, can you just—"

"Oh, but look at this little guy!" Twilight interrupted, her voice slipping into an exaggerated baby talk as she peered closer at the tiny cock. "Isn’t he just the teeniest, tiniest little thing? I don’t think I’ve ever seen one so small before! You’re just a precious wittle cock, aren’t you?"

Sunburst’s face turned bright red, a mix of embarrassment and frustration building inside him. "Twilight, I really don’t like how close your face is to my junk right now! Can you just—"

Twilight leaned in even closer, her nose practically touching Sunburst’s crotch as she continued her inspection. "Oh, but he’s just so precious, Sunburst! How can you not love him? Look at that tiny little shaft and shy little glans! I bet he’s just as grumpy as you are right now, aren’t you, wittle guy?"

Sunburst groaned, his voice rising in pitch as he tried to protest. "Twilight, this is really uncomfortable! Please, just let me go already!"

But Twilight wasn’t paying attention to his pleas. She was too focused on Sunburst’s newly shrunken penis, her face now almost buried in the soft fur of Sunburst’s nethers. "Oh, you’re just so small and cute, little prick! I could just watch you all day, you precious little thing!"

Sunburst felt his patience slipping away completely. "Twilight! Enough with my junk already! I’m the one who’s supposed to be getting help here!"

Twilight finally pulled back slightly, though her smile never faded. "Oh, Sunburst, you’re right. I got a little carried away there. But you have to admit, it's just the cutest thing, isn't it?"

Sunburst gave her a deadpan look, clearly not amused. "I didn’t even get a good look at it, Twilight. I don’t go around marveling at cocks anyway…I’m not gay you know."

Twilight giggled, seemingly unbothered by his annoyance. "Well, maybe next time you’ll appreciate the little things in life more, Sunburst. Sometimes, it’s the tiny details that really matter."

Sunburst let out a frustrated sigh. "Twilight, I promise I’ll appreciate every tiny detail in Equestria if you just turn me back to normal! Please!"

Twilight’s horn glowed even brighter as she tightened her magical grip on Sunburst’s limbs, keeping him pinned to the floor. He was spread eagle, his legs stretched out in every direction, completely at the mercy of her curiosity. Twilight’s eyes were focused intently on his crotch; her fascination only seemed to grow the longer she stared at it.

"Twilight, please, this is getting ridiculous," Sunburst pleaded, his voice nearly frantic. "Just let me go already!"

But Twilight barely acknowledged his protest, her face now inches away from the little member. "Oh, Sunburst, you’re such a worrywart," she said, dismissing his concerns with a wave of her hoof. "This is all in the name of science! Besides, aren’t you curious about this little guy? He’s so tiny and fascinating. Maybe one day he’ll grow up to be really big…"

Sunburst groaned, his cheeks flushing with embarrassment. "I’m really not curious at all, actually. I’d rather not have your face so close to my nethers!"

Twilight ignored him, her nose gently brushing against the penis as she nuzzled it. She smiled, her eyes lighting up with delight. "Oh, he’s so soft! I never would have guessed a coltcock could feel like this. You know, Sunburst, you’re missing out on quite the experience here."

"Twilight, stop! This is… this is weird!" Sunburst’s voice cracked with frustration, but Twilight was too engrossed in her discovery to pay him any mind.

"Don’t be such a prude, Sunburst," Twilight chided playfully. "You need to relax a little. You’re always so uptight. Sometimes you just have to appreciate the smaller things in life—literally."

Sunburst’s eyes widened as Twilight’s nose pressed even closer to the prick. He watched in horror as she inhaled deeply, taking in the scent of the tiny shaft. "Mmm, smells like soil," she mused, her tone one of satisfied curiosity. "A bit musky, with a hint of something acidic. Exactly what a wittle pee-pee should smell like!"

Sunburst cringed, trying to pull away, but the magic held him firmly in place. "Twilight, this is not normal behavior! Just let it go and turn me back already!"

Twilight chuckled, her eyes still locked on the colt’s member. "Oh, come on, Sunburst. I haven’t had the chance to interact with many penises up close and personal like this. I’m really enjoying this little scientific exploration."

Sunburst let out a long, exasperated sigh. "Twilight, this isn’t an exploration! This is just… bizarre! Please, just stop!"

But Twilight wasn’t done yet. Her curiosity was far from sated, and her mind was already racing with the next logical step in her investigation. "Hmm," she murmured thoughtfully, "I wonder what he tastes like."

Sunburst’s eyes nearly popped out of his head. "Twilight, you can’t be serious!"

But before he could say another word, Twilight leaned in even closer, her tongue slipping out of her mouth as she gave the tiny member a tentative lick. The sensation was strange, unlike anything she’d tasted before, and it only piqued her curiosity further. She gave it another lick, and then another, each one more deliberate than the last, her tongue gently lapping at the little nub.

Sunburst was mortified, his body tensing up as he tried to block out the bizarre scene unfolding before him. "Twilight, this is beyond uncomfortable! Please, I’m begging you, just stop!"

Twilight paused for a moment, glancing up at Sunburst with a reassuring smile. "Relax, Sunburst. There’s nothing to worry about. I’m just conducting a bit of research. It’s purely scientific."

"Scientific? You’re licking a colt’s dick! How is that scientific?!" Sunburst’s voice was high-pitched, almost hysterical, as he struggled against the magical restraints.

Twilight giggled, clearly amused by his feeble reaction. "You’d be surprised how much you can learn from taste, Sunburst. It’s a valuable sensory tool! And besides, it’s not like I’m hurting the little guy. He seems perfectly fine."

Sunburst groaned, his head falling back against the floor in defeat. "I’m never going to live this down, am I?"

Pulling back, she once again leaned in even closer, her breath warm against Sunburst’s fur.

“Twilight, seriously...!” Sunburst squeaked, his voice trembling as the situation grew increasingly uncomfortable. But Twilight was in full science mode, and nothing was going to distract her from her peculiar investigation.

“Just a little closer…” she murmured to herself, her nose nearly touching Sunburst’s dick. She watched it for a moment longer, her eyes wide with childlike wonder. Then, without warning, she opened her mouth and gently took the penis between her lips.

Sunburst gasped, his eyes widening in horror. “Twilight, what are you doing?!” he cried, his voice rising several octaves. But Twilight couldn’t answer; her mouth was full…or at least preoccupied.

The sensation of having the penis in her mouth was unlike anything Twilight had ever experienced. It hummed and vibrated slightly, sending tiny tremors through her teeth and into her gums. It was strange, almost pleasant in a bizarre way.
Sunburst, on the other hoof, was far from captivated. He was absolutely mortified. The entire situation had become too much for him to handle. His eyes filled with tears, and before he could stop himself, he began to cry.

“Twilight, please, stop!” he sobbed, his voice breaking as the tears streamed down his cheeks. “This is so… so weird! I don’t know what to do!”

Twilight, still holding the colt’s penis in her mouth, tried to respond, but with her mouth full, her words came out garbled and incomprehensible. “Mmmf, Mummffum! Mffmf!”

Sunburst sniffled, his ears flattening against his head as he tried to make sense of what she was saying. “W-what? I can’t understand you!”

Twilight rolled her eyes, the miniscule cock still vibrating in her mouth. She hadn’t expected Sunburst to get so worked up over something so trivial. It was just a quick bj, after all. As she tried to speak again, the vibrations from the struggling, growing member tickled the roof of her mouth, causing her to giggle involuntarily.

But as Twilight giggled, something unexpected happened. The tiny member, no longer able to withstand the pressure and the stimulation inside Twilight’s mouth, suddenly burst. There was a faint jolt, and then a simultaneously acidic, salty taste spread across her tongue. Twilight’s eyes widened in surprise.

Sunburst watched in horror, his crying escalating into full-blown bawling. “Twilight! You… you…” the overwhelmed colt couldn't even finish his sentence.

Twilight quickly swallowed, the taste lingering on her tongue. She hadn’t expected Sunburst’s member to cum like that, but she had to admit, it wasn’t unpleasant. In fact, it was surprisingly sweet, almost like some sort of strange syrup. She blinked a few times, processing what had just happened, before turning her attention back to the sobbing Sunburst.

“Sunburst, it’s okay,” Twilight said, trying to sound reassuring despite the bizarre turn of events. “It wasn’t bad, I promise. It was actually kind of sweet. See? No harm done.”

But Sunburst was inconsolable. He buried his face in his left shoulder, his small body shaking with sobs. “I… I don’t care if it was sweet! This whole thing is so… so messed up! I just want to go back to normal!”

Twilight felt a pang of guilt as she watched Sunburst cry. Maybe she had gone a bit too far this time. She sighed and reached out to gently pat his head, her voice softening as she tried to comfort him.

“Hey, don’t worry, Sunburst. Everything’s going to be fine. I’m sorry, I didn’t mean to upset you. I was just curious, that’s all. But I promise, no more experiments. Let’s just focus on getting you back to normal, okay?”

Sunburst sniffled, looking up at Twilight with tear-filled eyes. “R-really? You mean it?”

Twilight nodded, offering him a small, apologetic smile. “I mean it. No more weird experiments. We’ll get you back to your usual self, and then we can forget all about this, alright?”

Sunburst hesitated for a moment before nodding slowly. “O-okay… But you have to promise not to do anything like this ever again.”

Twilight held up a hoof, her expression serious. “I promise, Sunburst. No more experiments. Cross my heart, hope to fly, stick a cupcake in my eye.”

Sunburst managed a small smile at that, wiping his tears away with a hoof. “Alright… But can we just get this over with? I really want to be myself again.”

Twilight nodded, her horn glowing as she prepared to reverse the spell. “Of course. Let’s get you back to normal.”

Twilight’s horn flared with a brilliant magenta light as she focused on reversing the age regression spell. The magical aura surrounded Sunburst, lifting him slightly off the ground as sparkles of energy danced around him. His small, coltish body began to shimmer and stretch, his limbs elongating, and his voice deepening from its high-pitched squeak back to his usual, more mature tone.

Sunburst felt an odd tingling sensation as his bones and muscles rearranged themselves, pulling him back to his original size. His hooves grew larger, his mane thickened, and his spectacles, which had slipped off during the transformation, magically resized themselves to fit his adult face once again. His orange coat regained its usual luster, and the cutie mark on his flank returned to its rightful place. The entire process took only a few seconds, but to Sunburst, it felt like an eternity.

When the magic finally dissipated, he found himself standing on shaky legs, back to his normal self. He wobbled slightly, blinking as he adjusted to being his old size again. The whole experience had left him feeling a little lightheaded and more than a little traumatized.

“Finally,” Sunburst muttered, brushing his mane out of his eyes as he tried to steady himself. “I can’t believe how ridiculous this whole thing has been. I just want to forget all about it.” He shot a glare at Twilight, his eyebrows knitting together in frustration. “Twilight, that was too much! You really crossed the line this time. I’m still processing everything you put me through.”

But Twilight, instead of looking remorseful, burst into uncontrollable laughter. She clutched her sides, her wings fluttering with amusement as she tried—and failed—to contain her giggles.

“Twilight, this isn’t funny!” Sunburst snapped, his face flushing with anger. “You know how much I hate being the butt of some joke!”

Twilight, still laughing, wiped a tear from the corner of her eye. “Oh, Sunburst, you really need to learn to lighten up! I mean, come on, it was just a little fun. You were such a grumpy little colt, and now…” She couldn’t finish her sentence, breaking into another fit of giggles. “Now you’re back to your old self, but, uh, maybe you should check something out.”

Sunburst’s brow furrowed in confusion. “What are you talking about?”

Twilight, still grinning mischievously, nodded toward him. “Your underside. Take a look.”

Sunburst hesitated, feeling a knot of dread tighten in his stomach. “What? Why?” He glanced down at his chest and stomach, not sure what to expect. Everything seemed normal at first glance. But as he looked closer, his eyes widened in shock. There, nestled in the fur of his lower belly, was the same colt-sized penis he had earlier. It hadn’t gone anywhere—it was still there, as small and innocuous as before, seemingly stuck to him like a burr.

“Ahhh! What in Equestria?!” Sunburst shrieked, scrambling to get a better look. He tried to brush the shrunken prick off with his hoof, as if trying to break a hallucination, but it was no use. The little creature seemed to be perfectly content where it was, clinging to his fur as if it had found a new home.

Twilight was laughing so hard by this point that she had to sit down to avoid falling over. “Oh my stars, Sunburst, you should have seen your face just now! I think this is the funniest thing I’ve seen all week!”

“Twilight, this isn’t funny! This is horrifying!” Sunburst was practically hyperventilating at this point. “Why didn’t you get rid of it? I thought you were supposed to reverse everything!”

“Oh, I did,” Twilight replied, still giggling. “But I kind of left your cock from earlier there on purpose. I figured it might make a nice little souvenir from your… experience.” She leaned in closer, her grin widening. “And the best part? The magic that’s keeping it there? It’s permanent.”

Sunburst’s heart sank as the full weight of Twilight’s words hit him. “Permanent? You’re joking, right? Please tell me you’re joking.”

Twilight shook her head, barely able to contain her amusement. “Nope! This little guy is going to be your new best friend, forever.”

Sunburst’s mind was racing. He could hardly believe what he was hearing. “I… I can’t live like this! Twilight, you have to undo it! You have to!”

Before Twilight could respond, the door to the room creaked open, and Starlight Glimmer stepped inside, a curious expression on her face. “Hey, what’s going on in here? I’ve been listening from the other side of the door, and it sounds like I missed something hilarious.”

Twilight’s grin widened even further. “Oh, Starlight, you have no idea. Come over here and take a look at Sunburst’s undercarriage.”

Starlight raised an eyebrow, intrigued. “His undercarriage? What are you talking about?” She moved closer to Sunburst, who instinctively tried to back away, his face burning with embarrassment.

“Starlight, no! Don’t look!” Sunburst pleaded, trying to shift his body to block her view. But it was no use. Twilight’s magic enveloped him once again, holding him still by his limbs and leaving him completely exposed.

“Twilight, let me go!” Sunburst struggled against the magical hold, but it was no use. Twilight’s magic was too strong, and he was too flustered to think clearly.

Starlight leaned in, squinting as she got a closer look. Her eyes widened in surprise, and then she burst out laughing, her voice echoing off the walls. “Oh my gosh, Sunburst! Look at that thing! And it’s so small! How did this even happen?”

Twilight, still holding Sunburst in place, couldn’t resist chiming in. “And guess what, Starlight? It’s permanent. That little guy is going to be there forever.”

Starlight doubled over with laughter, clutching her sides as she struggled to catch her breath. “This is priceless! I can’t believe this! Sunburst, you’re never going to live this down, I’ll make sure of it!”

Sunburst’s face turned an even deeper shade of red as he tried to process the situation. “This… this can’t be happening,” he muttered, his voice barely audible over the sound of Starlight and Twilight’s laughter. “I’m going to be stuck with this thing forever?”

Twilight finally released her magical hold on Sunburst, allowing him to collapse onto the floor in a heap. She wiped away a tear, still chuckling to herself. “Well, I guess that’s one way to keep a little reminder of today’s fun, huh?”

Sunburst groaned, burying his face in his hooves. “This is a nightmare…”

Starlight, still giggling, patted Sunburst on the back. “Hey, look on the bright side. At least you’ll always have a companion with you. A very, very small companion.”

Twilight nodded slyly in agreement. “And who knows? Maybe you’ll grow to like having a little friend like that. It could be… educational. It’ll teach you to respect mares so they care about your…personality.”

Sunburst didn’t respond, too mortified to even think straight. All he could do was sit there, staring at the tiny thing and wondering how his day had gone so horribly wrong.

As Starlight and Twilight continued to laugh, Sunburst silently vowed to himself that he would find a way to reverse the magic—no matter how long it took. But for now, he was stuck with his new, very small, very permanent member between his legs.