My Little Anon

by Bendy

Rating: mature
Tags: Sex, Twilight Sparkle, Anon, My Little Pony: Friendship is Magic, Human, Romance, Porn, Second Person, Fetish
Length: 8279

Twilight is annoyed that you make ponies grow bigger during sex. She tries to fix the issue with a shrinking spell.

Twilight is annoyed that you make ponies grow bigger during sex. She tries to fix the issue with a shrinking spell.

Co-Writer: primortal

Published 2021-11-02 23:00:03 UTC
Last updated 2021-11-02 23:00:03 UTC

Big Pony

You stood in the aftermath of your latest escapade, well… after you and your latest partner exited from the ‘pocket dimension’. It had taken a while for the magic wards and spells to kick in, and thus by the time you two had entered this ‘safety room’, the pony had grown quite a bit. You felt sore after the whole ordeal. Like you had just been at the gym lifting weights. You were hissing in pain, your body felt limp.

The two of you lay in what remained of the local spa, or as you would call it… ‘ground zero’ for the latest incident. “I take it our service proved quite satisfactory?” came the voice of Aloe, one of the earth ponies that worked at the spa. Beside you was her colleague, Lotus Blossom. The cerulean pony blushed a bit as she smiled. “Oh yes, yes! Zee human was quite satisfied, no?” she answered, turning around giving you a knowing wink.

You were soaking wet with her marecum. It had a wonderful flowery smell to it. Contrary to her actual name, she smelled like roses, not rotten onion or garlic-like the plant Aloe Vera. You licked up her delicious nectar off your face. As for Lotus, her cum smelled, well, like a lotus flower.

Your cock began to slowly shrink back down to normal size (20 inches long and 8 inches thick, along with a pair of grapefruit sized balls. It seemed you were blessed with a big cock in this land) as her massive backside sitting on your lap rapidly deflated. The tall and mighty, mountainous mare shrunk down to a mere four and a half feet.

You stood one and a half feet over the now far smaller mare, making you about six feet tall. You simply chuckled and gave her rump a light, playful, slap. She gave a playful ‘eep!’ as she suddenly grew a few inches, this created a wonderful meaty slapping sound as her cheeks smacked against each other.

“Perhaps, zee human would like to sample some more, ahem… service?” asked Aloe, looking at your cock with lust.

“I would like to think not!” came a voice, and the three of you turned to see a stern-looking Twilight Sparkle flying down to the ground. Blushing, the two spa ponies slowly backed away. But the ‘Princess of Friendship’ was not angry with them, she was angry with you.

“Anon, can we speak somewhere more private?” asked the purple alicorn, shooting a glance towards Aloe and Lotus. Nodding, the two earth ponies walked away, as Lotus Blossom’s body began to slowly shrink back down.

You were perplexed by this. “What’s wrong Twi?” you inquired, while quickly dressing yourself back into your signature black tuxedo.

“Anon… this is the third time today!” she grumbled. “We can’t keep fixing the collateral damage from your little… love sessions.”

“What can I say, I love seeing your mares explode over me in growth,” you replied, as you reached over and gently ran a hand through her soft mane. “Besides, I don’t see you complaining when it’s just us.”

Twilight uttered a heated gasp of bliss, as she grew several inches into the air. However, she quickly shook her head, and gently pushed your hands away with a flick of her magic. “Anon! You’re not listening!” she snapped, trying to keep composure. “This is getting ridiculous! As fun as it is to experience this growth, it takes far too much time to properly set up a protective dimensional field! Especially when one is… getting… a bit acquainted with your… gifts.”

For some reason, even the two celestial princesses can’t quite figure it out, ever since you arrived in this world two things have become apparent. One, you have become incredibly irresistible to the female denizens of this bizarre magic-based world. And Two, for some reason having sex with you caused massive amounts of growth. The only possible explanation that Twilight could come up with, upon hearing about your world, is that it might be due to coming from a world lacking real magic.

That’s the only thing that makes sense amidst this crazy, yet sexy, situation. At first you were hesitant, what with the whole ‘fucking horses’ thing. Even though you wholeheartedly believed in the ‘Harkness Test’, it still took some time to get used to having more… intimate relations with these talking ponies, zebras, griffins, etc.

Thank the gods you were an ass man. So, you personally had no complaints about them growing. For there seemed to be some sort of weight protection protecting your body from the full weight of their ass on top of you. Elephant sized ponies, and far bigger bounced on your lap before, and you were fine.

Sex with a growing pony was painful, but it was a good kind of pain. You didn’t need to go to the gym anymore. You got all the exercise you needed with super heavy pony asses slamming up and down upon you.

And as things grew more and more… heated… the need for countermeasures, safety protocols, became apparent. Especially when you accidentally caused poor Fluttershy to become the size of Godzilla right in the middle of Ponyville. She was so embarrassed, it was weeks before she’d even look at you again afterwards. And while the magic harnessed by Twilight and the other princesses made fixing the damage easy… this was still a concern.

Thus the need for ‘Pocket Dimensions’ was brought forth. A little wibbly wobbly ‘time and space’ area where supposedly there was infinite room to grow. And for a while, it seemed like the best thing ever. You and your pony lover could fuck to your little heart’s content without causing damage to the surrounding area.

You even managed to have sex with some other sapients like the griffins/zebras/dragons. But only one of each thus far. The dragon Ember was a real cutie deep down, despite her tomboyish nature. She loved getting bigger. Gabby was a really nice griffon. Like Ember, she too loved getting bigger. The only zebra you knew was Zecora, her rhythm speech was quite sexy. Zecora also had an abnormally large ass even at her base size, tears of joy fell down your cheeks watching her big fat booty get even bigger. You didn't have much luck with other griffons, dragons, and zebras, mostly because they didn’t visit Ponyville.

And everything seemed ‘peachy’. For a time at least.

But you clearly underestimated your appeal, your draw, to the females of this world. Once a week became once a day, then once a day became anywhere between twice to even (one time) six times a day! And as such the limitations of the ‘Dimensional Magic’ began to present themselves. Sometimes the magics took a minute or two to kick in, especially if one of your partners was growing really fast. This became apparent when, one time, Zecora’s massive (and fast) growing rump had almost flattened ¾ of Ponyville before the two of you got shunted to the Pocket Dimension.

So in this case, you would eventually return to a decimated town or collapsed building, or completely flattened apple farm. Luckily nobody ever seemed to get hurt, a fact you simply chalked up to more ‘Pony Magic’, but that didn’t seem to extend to the buildings and infrastructure. That required more time, and a heft bit of magical assistance to repair.

And clearly, despite loving the experience herself, this was getting to Twilight Sparkle and her fellow princesses. Having to stop whatever she was doing to help fix things probably had something to do with this growing antagonism. Especially with the aforementioned frequency with which your love sessions occurred on any given day.

“So what do you suggest we do then Twilight?” you asked, curious as to what her solution would be. To this the purple alicorn blushed, because she had no alternative. Biting her lower lip, she sighed.

“I don’t…. I don’t know,” she said in a defeated tone, her head hanging down low.

“Do you have any anti-growth spells? Try to fight against the growth, perhaps?” you asked casually, knowing there had to be something out there as you looked over at the spa ponies, flashing them a wink. The two ponies swooned in response.

“Casting them on myself seems largely ineffective. I only lose a few feet in height at best every second. All the while you make me explode in size like snow falling off a mountain from an avalanche,” answered Twilight, still trying to think of a solution. Your words, though, did seem to point her in the right direction.

“I DO love seeing your ass avalanche over me,” you replied with a smirk.

A pink blush came upon Twilight’s cheeks, she brought a hoof to her mouth and stared at you in embarrassment. “Yeah, it’s nice. But I hate having to clean up the mess afterward,” she took a deep breath, and sighed. ”Would you be okay if I tested some spells on you? I may be able to counter my growth,” she said, trying to focus on the task at hand, not on the idea of having sweet sexy times with her beloved human.

“I trust you, Twilight. You did after all give me a magic dick that grows to adjust to the size of big growing mares, so it could please them,” you interjected, rubbing your hand along her neck, eliciting some moans from her.

In response, Twilight leaned forward, and planted a soft kiss on your lips. She moaned, as she gained several inches in height. However, she quickly pulled back to stop any further growth. “You need to focus!” she said, seemingly to herself. You sighed deeply in sadness as her soft, pony lips departed from yours. They felt so warm, soft, and a little fuzzy.

“I thank you Anon. It feels wonderful to know that you trust me to never abuse my magical powers over you,” Twilight’s horn lit up in a pinkish red glow. The same glow soon came to wrap itself around your body.

Her horn’s glow came to a stop, and nothing appeared to be happening. “Hmmm… that’s not it…,” she said to herself, mentally examining her progress. “How about...” she trailed off as another glow came to her horn. This time something seemed to be happening.

Your perception of the world drastically began to change. Twilight appeared to be ‘growing?’ but nothing else seemed larger around her. However, upon closer inspection she wasn’t getting any taller, you were in fact getting shorter. It topped off at about a foot in height.

“Oh! Crudmuffins!!” gasped Twilight as she looked down at you, a dopey grin on her face. “This wasn’t what… I… wanted?” she said as she seemed to become entranced by your size.

“Uhhh… Twilight, are you okay?” you asked as she smiled enthusiastically. She nuzzled into your little chest, licking you lovingly.

“You are so CUTE at this height.” she squealed, before another idea hit her and her horn lit up once again.

Smaller… and smaller you became until Twilight might as well be 1000 feet over you. You were but a little action figure when compared to her size. An extra small action figure. A dwarf if you will. Your clothes appeared to adjust to your far smaller size. You stood beneath the dark shadow of your massive marefriend looming over you.

“Hello up there Twilight. I think you are cute too by the way,” you said, not realizing you were too small for her to hear.

Twilight tilted her head to the side curiously, and her ears cutely wiggled about. “I can’t hear you, Anon. What did you say?” she said softly, careful not to shout.

She flashed her horn with magic. “Speak now, I have enhanced my hearing.”

“I said hello up there Twilight! I think you are cute too,” you answered, trying not to shout yourself.

Without a word, Twilight lifted you into the air with magic, and placed you on top of her snout. From here, you could see her massive eyes looking down at you. Her eyes alone might as well be mountains to you.

“Boop me, Anon. To test to see if anything happens,” she spoke very softly, since you were close to her mouth.

As commanded, you reached down and bopped her on the nose with your right index finger. Twilight moaned softly, but with magical aid she showed you she didn’t get any bigger.

You sighed sadly. “Awww, I wanted you bigger. Normally when I boop a cute pony’s nose they get bigger.”

“Then this was an unintended success!” squealed Twilight, beaming with pride.

“Twilight, you can turn me back to normal if need be, can you? Since you know, I quite literally helped save Equestria by fucking you before to power you up. Both your physical and magical strength are drastically increased when you are bigger.”

“You’re right. I need to test if I can quickly return you to normal size.”

With a flash from her horn. She teleported you from behind her, and then your body sprang up to it’s normal size. “Anon, I need you to grab my ass, for science.”

You didn’t need to be told twice. You lay your hands upon Twilight’s lovely rump. Your hands sank deeply into the plush softness of her backside. Her warm and soft furry rump felt wonderful to hold. Twilight moaned softly, as she began to inch upward into the air. You found yourself pitching a tent in your pants at the sight of Twilight’s rump air ballooning out from behind her in growth.

You reached your right hand back. But before you could deliver a slap, Twilight giggled as she flashed her horn, and made you as small as a toy action figure again. Your hand swung through empty air before you. A dark shadow loomed over you, as you stood beneath the shadow of the massive mare’s rump above you.

“Awww! I wanted to slap your ass to make it even bigger. This isn’t the end of our growth fun, is it?”

“No, of course not. But we want to try to do it in a more controlled environment. Not out in the street where everypony can see your lover’s ass rolling over the town. It seems we need Princess Celestia’s magic to prevent a pony’s ass from plowing down the walls of a house.”

“I guess. Sex will be rare then. Since Princess Celestia isn’t always around to help us. She is often busy with other stuff in Canterlot.”

Without a word, she magically lifted you up and placed you on her back. Her soft and warm fur looked like trees at your small scale. You heard loud clopping sounds as Twilight appeared to be on the move.

You sighed happily at her scent. The lavender colored princess smelled of wonderful lavender. You don't know if it's perfume or her natural body odor. You could make out the tops of buildings, and brief flashes of color of other ponies through Twilight’s hair as she trotted her way through the town. You were just about tall enough to reach above her hair.

“Where are you taking me?” you asked.

“To Rarity’s. I think she will be happy her clothes won’t get ruined anymore by you.”

A chill ran down your spine as you remembered the lovely fashionista’s occasional wrath in the past. Which was only magnified even more when she was the size of a battleship. One time you had to flee from her when her growing form had destroyed not only her boutique but did a number on her latest assortment of clothing and accessories. It took the rest of Twilight’s main circle of friends to calm her down before you felt safe. “Are… are you sure that’s safe?” you asked, not wanting to take a chance that the pearly-white mare held a grudge.

Twilight sensed you tensing up, it didn’t take her too long to realize why. Hell she was the one who had to play mediator during that incident.
“Sorry about that. I talked to her, she only wanted angry sex with you to make herself even bigger to punish you. The weight protection would not wear off.”

“Really, agnry sex?” you asked.

“Yeah, Rarity likes you. She was just mad. She wants to apologize to you. With no angry sex.”

You sighed. “Just like women, I’ll never understand mares either. These mixed messages confuse my man brain.”

Twilight giggled with a hoof over her mouth. Even inside Twilight’s hair, you could see the towering building known as the Carousel Boutique as she approached it. Without even knocking, Twilight pushed open the door with her front, right hoof and entered inside.

You heard Rarity’s voice speaking. “Twilight, darling, where is Anon? I’ve been meaning to speak with him.”

Twilight flashed her horn, and lifted you up off her back and presented you before Rarity. You were magically held with a pinkish red glow before Rarity. The white mare gasped at the sight of you, and brought a hoof to her mouth.

“Darling, you’ve gotten so small. What happened?”

“Twilight cast a new spell on me. I don’t make ponies get bigger anymore.”

Rarity’s floppy ears flicked, and she tilted her head to the side. “What did you say, darling?” from Rarity's point of view your voice was far too quiet for her to hear. You were practically like a squeaking mouse to her.

Twilight spoke up. “Rarity, you need to cast a spell to amplify your hearing like me.”

“I don’t know of such a spell. Can you help me?” without a word, Twilight flashed her horn, enveloping Rarity's ears in a pinkish-red glow for a brief moment. "Try again, deary."

You spoke up again. “I said, Twilight cast a new spell on me. I don’t make ponies get bigger anymore.”

“Marvellous!” boomed the pearly-white pony, clapping her two front hooves together. The noise of which caused you to cringe, as your ears rang painfully.

Rarity gasped with a hoof over her mouth. “Oh, sorry, darling,” she said softly, her ears drooping sadly.

“I forgive you,” you said, reaching your right hand out to her. Twilight levitated you closer to Rarity, bringing you within touching distance of her lips. Rarity's wonderful lavender perfume, along with her minty breath bombarded your senses this close to her.

From behind, you heard the sound of clopping hooves. You looked behind you to see Twilight’s lips mere inches away from touching your body. You were surrounded on both sides by two huge (by your diminutive prospective) mares. You heard the hum of a horn, and your clothes vanished out of thin air. The two of them smelled of lavender, and they had a nice minty breath.

The two mares met in the middle, darkness overwhelming your field of vision as their plush lips gently pressed into your body from all sides. Moans and giggles echoed through your body as the pressure from the kiss pulled at you. You had to admit, so far this spell was doing a great job as you answered their noises of pleasure with moans of your own. You loved being kissed by giant ponies.

“Oooh! Someone’s clearly enjoying themselves,” giggled Rarity, withdrawing from the kiss as she felt a small ‘bump’ poking into her lips. “Really, Darling, we’ve barely gotten started,” she teased, tongue licking along the edges of her mouth.

“You taste… interesting my dear sweet human. I take it Lotus Blossom couldn’t control herself?” she inquired, to which Twilight giggled. She noted your perplexed face, grinning smugly. “You smell and taste like their oils… as well as other areas,” answered the unicorn with a wink.

You weren’t surprised by this revelation, that Rarity might have gotten… intimate with the Spa Ponies at some point in the past. In fact it sounded kinda sexy. But you simply laughed, shaking your head. “What can I say, sweetie? They couldn’t take their hands.. errr hooves off me,” as you shrugged.

“I figured you had gotten to, ah heh... KNOW a pony, judging from the rumbling and quakes I had felt earlier. If she could only see you now,” giggled the fashionista as she licked along your body some.

Rarity with a happy hum took your stiff cock into her mouth. You gasped, your whole body shaking at the feeling of her soft, warm, heavy lips encasing around your member. She giggled before she oh-so lovingly began to lick the tip of your cock with her tongue.

The huge snowy white mare lovingly sucked on you by gently pistoning her lips back and forth against your cock. However, due to the sheer size difference between you and her, this caused her lips to kiss your entire body with a wet smooching sound.

Your cock was smothered by the wonderful, wet softness of her heavy lips. It was like the softest, warmest blanket you ever felt. Your cock slid back and forth between those wonderful soft lips of hers during her movements.

You cried out in pure bliss, and began to wildly hump your cock between Rarity’s lovely lips encased around your cock. Rarity giggled from hearing your cries of pure bliss, before she brought out her tongue and began to tenderly lick your cock. You felt yourself near release already. Rarity sighed happily, releasing your member with a loud pop. You sighed sadly, if she just held your cock a little longer inside her mouth you would have cum then and there.

“Oh, darling. It feels so nice to give you a blowjob without getting taller, or seeing my backside air ballooning out from behind me.”

You heard a hum of magic, and you were turned to face Twilight. The giantess purple mare moaned before she pressed her lips against your crotch, and took your penis into her mouth. Your whole body spasmed from the feeling. Her plump lips came to kiss your entire body when she took your cock between her lips.

Twilight’s tongue lovingly licked the tip of your cock as her plump lips tenderly suckled on your cock like a lollipop. Her head gently moved back and forth against yours, kissing your body each time her lips met your body.

You didn’t last very long. So, with a cry, you unleashed inside Twilight’s loving mouth. Twilight giggled as she felt tiny dribbles of your cum splashing against her tongue. It was nowhere near the same amount she was used to seeing.

Nonetheless, Twilight lovingly drank down your cum to the last drop, moaning at the taste of you. She held her lips over your cock even as it began to soften between her lips. Your flaccid cock came to slip out from between her lips.

Your body was turned to face Rarity. You heard the hum from a horn, and your cock was subsequently wrapped in a light blue glow. A telltale sign it was Rarity’s magic. Your cock rapidly regained its hardness, and it came to push in between Rarity’s loving lips presented to you. The huge white mare welcomed your cock back between her lips by gently licking your tip causing you to scream, and your legs to kick her lower lip. Rarity simply hummed happily around her mouthful, before she began to piston her lips over your member encased between them.

With loving tenderness Rarity suckled upon your cock. Her lovely lips slid along your cock, smothering it in the great heavy softness of her wet lips. You wished you could hold out more, but you seemed far less able to endure the ponies at your vastly reduced size.

With a cry, you unleashed into Rarity’s loving mouth. Spurt, after spurt of your creamy seed shot into her muzzle. Rarity hummed happily, eagerly swallowing down your cum. Rarity lovingly licked the tip of your erupting cock. A small area upon her large tongue came to be coated in your love cream.

Your softening cock came to slip out from between Rarity’s wonderful lips. Before you had a chance to enjoy the afterglow. You were lined up between the two of them. The two mares then began licking your flaccid cock on either side of you, sharing your cock between them. Under such loving bombardment, you rapidly regained your erection.

“I love you at this size!” squealed Twilight as her tongue shifted to your sack, gently cradling your balls upon her soft tongue while Rarity licked along your shaft. “Get to still be… mmmmm... BIG, yet can do it within a more… private setting,” she moaned to your taste before resuming, giving attention to your testicles.

You hated to admit it, but you were coming around to it too. There was just one issue that still bothered you. “B-But what about… hnngh... inflating yo-your curves? One of my, ooh my... favorite things (oh god keep going!) was making your butts and boobs bigger,” you said aloud, amidst the infinite pleasure your lovers were giving you.

This caused the purple alicorn to stop, much to your frustration, luckily Rarity was there to pick up the slack. “Hmmm… now that you mention it….” pondered Twilight, tongue running across her lips, savoring the taste while she quizzed over this issue. Rarity’s affections were rewarded with another creamy load from your pulsing cock. An audible gulp filled your ears as you hugged against her muzzle.

That’s when the Princess of Friendship noticed some changes overcoming Rarity’s body. Small changes, but very noticeable nonetheless. Her hips and cheeks inflated slightly, in fact… from the looks of things they had at least done so once already. While the snow-white unicorn kissed and nuzzled into your body, Twilight leaned to the side, sneaking a peek at Rarity’s breasts. Sure enough, they were noticeably bigger than before.

Doing a double-take, she looked over her own body… well as best she could. Her body did indeed look bigger… thicker… WIDER. She squeezed her back legs together, and sure enough… her own boobs were a bit more swollen than she remembered. And, much to her delight, very sensitive too!

Not only that, but the two of them were a good bit taller than before. The formerly four and a half feet tall mares reached about five feet. If they grow another foot and a half into the air, they would reach Princess Celestia’s height of 6.6 feet.

Steadily, as they slurped on your cock they grew into the air at a snail's pace. Twilight beamed with pride as she looked upon her butt, watching her rump slowly inflate bigger and bigger from behind her.

“Mmmmm! Oh, it’s so nice to grow slowly for once. The pocket dimension should be okay at this slow growth rate,” said Rarity, moaning as she licked your cock.

“I think you have nothing to worry about, my dear little human,” giggled Twilight, snapping you back to reality. “It seems that while your love and affection doesn’t enlarge us anymore, the same can’t be said for your… ahem… seed.” blushed the alicorn, feeling her cheeks warm up.

“R-Really?” you asked… well more like moaned, trying to focus on the Princess’s words while Rarity refused to let up in her attentive affections.

Rarity was now slightly bigger than Twilight due to the lack of your seed. Twilight grumbled in jealousy at the larger mare.

“Don’t worry, darling. I saved some for you.”

“What--Hmmmm?” as Twilight spoke Rarity pressed her lips against hers, taking her into a deep kiss. Twilight’s eyes widened as she was taken aback by the sudden kiss. “Mmmmm!”

Rarity drove her tongue down Twilight's throat and delivered the smaller mare a good dosing of your seed coating her tongue. Twilight cried out as she surged up larger into the air. Within a manner of seconds she jumped up in height to about 6 and half feet, making her the size of Princess Celestia.

You could not help but masturbate as you watched the two huge mares kiss as you levitated in mid-air just under them. Twilight had to lean her head down to kiss the smaller mare below her. For quite some time they kissed before the eventually parted lips. A strand of their saliva connected their departing lips, subsequently a great deal of this saliva came to land on top of you below them.

“You will return the favour if I'm in need of growth, won’t you? I could have just drank all that cum to myself but I saved it just for you.”

“Of course, Rarity. I would be an awful friend if I didn’t give you some cum,” she said, magically lifting you to her mouth, before she subsequently took your cock back between her lovely lips. You cried out at the feeling of having your cock once again smothered by a giant pony’s lips lovingly sucking upon it.

Rarity quickly moved to place herself behind Twilight’s massive rump. Rarity placed her hooves on either side of Twilight’s plush cheeks, the applied pressure of her hooves upon her ass caused her hooves to sink deeply into the thick, bubbly softness of her rear. Each cheek of Twilight’s ass was like a beach ball to Rarity. But to you, they might as well be great big mountains.

Rarity giggled, playing with Twilight’s lovely rump. She roamed her hooves over the wide surface area of Twilight’s massive backside, feeling up the wonderful softness of her rear. She took particular delight in seeing the depressions her hooves made quickly fading away from her hooves absence from areas she once held. When the depressions faded, they quickly returned back into a perfectly smooth shape.

Rarity lay her head on Twilight's right cutie mark and sighed happily. The weight of Rarity’s head sank deeply into the plush softness of Twilight's thick rump. “Oh darling, you are so sexy. I could worship your ass forever.”

Rarity made to move her head between Twilight’s bubbly cheeks. From there, she began to lick up her soaking wet marehood. Twilight uttered a loud whinny of pure bliss at the feeling of Rarity eating out her thick and meaty sex. You were allowed to see this with magical aid. The sight of which broke you, and you subsequently came between Twilight’s lovely lips encased around your member. Rarity giggled in delight as Twilight’s rump began to air balloon behind her, and push against her face.

Twilight uttered a loud neigh, before she walked backward to push Rarity against a wall. The larger mare then began to grind her growing ass against Rarity. Rarity uttered muffled moans of pure bliss as she was smothered by Twilight’s air ballooning rump pushing against her.

As she grew taller, Twilight made to magically lift Rarity up off the ground so she could continue to eat out her pussy. Twilight’s massive buttcheeks jiggled about like a stormy ocean as new layers of fat pumped into her ass, with each and every spurt of your cum landing on her lips. Continuously, you had non-stop ejaculations between Twilight’s loving lips encased around your member. You looked down to see the cause of this to find that your cock was wrapped in a pinkish-glow.

Twilight’s head rose to bump against the ceiling, only for said ceiling to magically extend upwards to get away from her expanding body. It was the same case with the walls of the room expanding away from her growing body. Unlike times before, Twilight’s growth was controlled, and far less explosive.

Rarity soon found herself ensnared by Twilight's growing asscheeks. Nonetheless, Rarity continued to lick out Twilight’s plump sex before her. In response, Twilight craned her neck back, and moaned aloud as she squeezed Rarity between her massive bubbly cheeks. Rarity's moaning echo could be heard reverberating off Twilight cheeks.

You sighed sadly when Twilight abruptly pulled her lovely lips from your cock, releasing it with a loud pop. “Do you want a turn yet, Rarity?” she asked.

“No! Darling! Keep going!” she shouted.

“Yes! Oh god! Yes! You just keep getting sexier and sexier the bigger you get!” you shouted.

Twilight brought out her enormous tongue… and began to affectionately lick your entire body. Your still erupting cock splattered your cum over her tongue tenderly licking your body. Twilight moaned in approval, before she brought her tongue back into her mouth, and swallowed down your cum.

With tears of joy in your eyes you looked at Twilight grow even larger into the air before you. The behemoth mare now stood at least as tall as the Carousel Boutique, the very building you were inside. She was now so large that if it wasn't for the pocket dimension her ass would have plowed through the walls of this building already.

Twilight smiled happily down at you. “Oh Anon, you are so sweet. You just get cuter and cuter looking the bigger I get over you.”

With that, she brought her lips back over your cock, and she continued to feed upon your cum to make herself bigger and bigger with ravenous gluttony. Wonderful meaty slapping sounds of flesh, slapping against flesh could be heard in the room as her massive buttcheeks smacked against one another. Her buttcheeks jiggled about like a stormy ocean as new layers of fat were pumped into her ass.

Loud slurping could be heard as Twilight hungrily suckled upon your cock with her lips. It seemed the giantess mare could not get enough of your cum so she could get bigger and bigger. And you were only too happy to oblige. The sight of seeing Twilight’s air ballooning rump was driving you insane with lust, it just could not get big enough. Under normal circumstances you would not be able to see her ass. However, the giantess mare magically helped you to allow you to see her rump growing in real time as she sucked you off.

Twilight grew and grew without stopping, bigger and bigger, fatter and fatter, heavier and heavier. The sheer weight of her tremendous hooves dug deep into the wooden floor below her as if it was made of butter.

When Twilight finally pulled her lips away from your cock she stood as tall as a skyscraper like that of the Empire State Building at the very least. Her legs were as thick as nuclear cooling towers. Her absolutely gigantic rump was like that of a grand american football stadium.

Twilight gave you a tour around her body with magical aid. You could feel yourself fly through a grand canyon that was between Twilight’s buttcheeks. It felt as if you were an X-Wing Fighter from Star Wars flying through the Meridian Trench between her buttcheeks.

Twilight held your magical view in mid-air over the dark abyss of her pussy. Far down below in the dark chasm you could see a speck of white upon her lower lip of her massive marehood. Zooming in closer, you could see that it was Rarity. The smaller mare appeared to be in a trance as she drank the creamy marehood pouring out of Twilight’s pussy like a gentle river. Hungrily, Rarity licked, kissed, and chewed on Twilight’s nether lips, coaxing her marehood to continue to release the flowing river of cum. Twilight's massive, meaty horse pussy winked at her in appreciation.

Twilight buttcheeks clapped against each other with thunderous meaty slapping sounds. This caused her soft, heavy buttcheeks to lovingly squeeze Rarity each time her buttcheeks slapped together.

Twilight directed your view to look upon her two, massive crotch-tits hanging down between her hind legs. Her massive Hindenburg-Class zeppelins crotch-boobs swung wildly about, spilling milk everywhere on the floor below.

Your vision returned back to normal. Now you could see Twilight's lips in front of you. The mare opened her mouth, and began to speak softly. It seemed she had great control of her volume. Your ears did not hurt in the least. However, her voice at this size was much deeper.

“Am I still beautiful Anon?” she asked in a worried tone.

“Twilight... of course, I find you beautiful. Dat ass can never be big enough. I love you with all my heart,” you said softly.

“Oh, I love you too,” she said softly.

Twilight sniffled tears of joy falling down her cheeks. You were pulled closer to her lips, and she simply whispered ‘kiss me’. You leaned forward and softly kissed her lower lip. The tenderness of this moment caused Twilight to grow... grow…. and… and grow!

Twilight craned her neck back and moaned aloud as she hyperexpanded into the air. She no longer cared if her ass destroyed the building, she relished this tender moment and embraced the growth. She sighed happily when the growth subsided, she had doubled in size in a manner of seconds. You stared in awe at the sheer beauty of the titaness mare.

“Hehe. Looks like romantic moments can also trigger growth,” she said, smiling sheepishly.

WIth a flash Rarity appeared down below before Twilight’s mighty hooves. Twilight flashed her horn, and Rarity instantly skyrocketed in the air to match her height and size. Twilight opened her mouth wide, showing Rarity the massive amount of your cum she had collected while sucking you off.

“Oh no, darling. Drink it yourself. I love seeing you bigger than me.”

Twilight giggled happily, and swallowed down your cum with a gulp. She cried out as her body was rocked by a massive explosion of growth. The mare skyrocketed into the air. When the growth subsided Rarity barely reached past her hooves. She was practically a small teddy bear when compared to Twilight. If Twilight were to stand outside, her head may reach above the clouds, and out into space. You guessed anyway. At any rate, she was A BIG PONY.

Without a word, Rarity pulled you towards her mouth and began to furiously suck you off. You instantly came the moment her soft, heavy lips made contact with your cock. Continuously you released into Rarity’s mouth causing her to grow bigger and bigger. You were a quivering mess and your whole body was shaking as Rarity milked you for all your worth.

Little by little, inch by inch Rarity was growing to match Twilight's height. Your mind went blank. You were completely limp as you were relentlessly sucked off by the giantess mare continuously. After what seemed like hours Rarity finally matched Twilight in height. Then and only then did Rarity release your cock.

Your whole body was spasming erratically from being recently sucked off by a giantess. Your body was covered in sweat and your heart was racing. “Darling, are you okay?” Rarity asked softly, her voice ripe with concern.

“Yeah... I’m… I’m just paralyzed with pleasure. Give me a minute,” you said weakly in a low voice.

“Okay, darling. We’ll give you some rest before we will have some more fun with you,” Rarity said softly, turning to look at Twilight.

You simply looked in awe at the two sexy giantess mares. The two mares leaned in close, and began to makeout feverishly above you, giving you some time to recover. Drool began to drip down from their mouths, landing upon you floating in mid-air just under them.

Twilight with a rough push knocked Rarity over onto the floor. There came a loud bang from the sheer force from the weight of her heavy body hitting the floor. Twilight lay herself on top of Rarity, and resumed making out with her. From your point of view you could see both of their massive asses now in view in front of you. Both of their soaking wet marehoods grinded against each other.

“Niiice...” you said, watching with interest… and lust.

Twilight departed her lips from Rarity, lifting her head to look back at you. “Tell me when you’re ready Anon. I want you to come inside my pussy, and then cum inside me while inside me.”

“Don’t hoard him all to yourself. You need to give me a turn too,” Rarity spoke up.

“Of course, but… I want to dominate you first,” she said, flashing her horn.

Rarity opened her mouth to speak, but she was cut off when a massive purple ass slammed down into her face. Twilight giggled, grinding her huge rump over Rarity below her. Rarity for her part was moaning in bliss at the taste of Twilight’s creamy marecum flooding into her mouth.

“You think my ass is big now. Just wait until Anon makes it even bigger!” Twilight spoke in a smug voice. Rarity simply uttered a muffled growl between her massive buttcheeks smothering her face. “I’m a princess. I get first dibs on the growth!”

You heard Rarity’s voice speaking inside your mind. “Darling, will you like to have your dick sucked again once you’re done with Twilight?”

Without speaking out loud, you said. “Yes. Yes I would.”

“Wonderful. I can’t wait to drink your cum again,” she spoke in your mind.

There came a flash, and you suddenly found yourself in total darkness. The air was warm and moist down here. A wonderful fruity smell permeated the air.

Then all of a sudden, you could see a lot better. You could see pink, fleshy walls of this ‘cave’ were coated in a thick layer of creamy marecum. An enormous equine tongue soon came into view, and gently came to land mere inches away from you. With magical aid, you could see that it was Rarity, who was driving her tongue deep into Twilight’s pussy.

You lay yourself down on the floor of Twilight’s pussy, and you began to eagerly hump against it with your cock. You heard a rumbling sound, and a muffled moan coming from Twilight. You were quite perplexed that Twilight could even feel you at her massive size. However, her senses are probably amplified to compensate for her larger size. That, or she magically enhanced them.

You made love to the ‘floor’ of Twilight’s marehood. Soon, a gentle rolling river of her creamy marecum came to wash over you, this river came to flow down to Rarity’s awaiting tongue. Rarity for her part eagerly licked up her creamy essence. You could see Rarity swirling her tongue around Twilight’s pussy, she tenderly licked the cum soaked walls of her birth canal, and drank from the river of cum.

You found yourself soon succumbing, and you subsequently began to release spurt, after spurt of your creamy human spunk upon the floor of Twilight’s sex. There soon came a low loud rumbling sound, before you were hit with a huge tidal wave of marecum. You were dragged screaming into Rarity’s mouth, down into her throat.

You sighed in relief when you saw your body wrapped in a light blue glow and you stopped falling in mid-air about halfway down her esophagus toward her stomach. A telltale sign Rarity had wrapped you in her magic.

“I’ve got you, darling,” came Rarity’s voice, speaking softly into your mind.

Rarity magically pulled you up out of her throat, and placed you upon the middle of her tongue. You could see her giant herbivore teeth lining her mouth from within here. Each one of her teeth was like a mountain when compared to your small size. And that was just her teeth, which were small when compared to the rest of her massive body. Her sparkly clean teeth shone brightly in the darkness of her mouth.

You could hear Rarity’s echoing moans of pure bliss from all around you. From outside, you could see with magical aid that Twilight was growing larger once more at rapid speed. The massive, growing alicorn grinded her hips over Rarity, smothering the smaller unicorn with the expanding bubbly softness of her growing rump. Rarity opened her mouth, and welcomed in a monsoon of marecum to flood into her mouth. You were magically held in place over Rarity’s tongue as you were hit by a huge flash flood of marecum washing over you, followed by it falling down into Rarity’s throat. Rarity moaned, drinking down her cum with gusto.

Twilight’s growth was stronger than ever before, she soon pulled Rarity between her growing asscheeks, all the while tightly squeezing her, before she pulled Rarity’s entire body inside her pussy. You were now technically inside two mares. Rarity was but a mere ant (if not even less so) when compared to Twilight. Twilight herself was possibly in terms of scale was the distance from Earth to the sun. She was practically a red giant star. If this house did not have a pocket dimension, Twilight’s ass would probably have ended up destroying a good chunk of the solar system, and disturbing the gravitational field of other planetary bodies, and thus sending them out into space.

Twilight flashed her horn, and teleported you, and returned your body back to normal size. A ‘normal’ sized (a four and a half feet tall) Rarity next to you on the right. The two of you stood under the shadow of the supermassive alicorn standing before you. Rarity gasped in shock at this turn of events.

“Twilight?! What have you done?!” Rarity shouted… but she might as well be a squeaking mouse to Twilight.

Twilight ignored Rarity, she licked her lips as she held a glowing ball of a huge light blue magical energy before her face. “Oooh, the growth Rarity has been collecting. I wonder how much mass I can get from it?”

In one fell swoop, Twilight engulfed the magical energy into her mouth. However, this only added an insignificant amount of size to Twilight. A mere planet’s worth of matter at best. But when compared to Twilight’s size, it might as well only be a few inches.

She frowned. “Oh, how disappointing. I need more of Anon’s love.”

“It’s my turn with Anon!” Rarity protested. “But if you must, can I at least have sex with Anon while inside you?” she asked softly.

“Of course, but I will need to feed on your growth you obtain from Anon and add it to my own.”

There came a flash, and you found yourself laying on the floor while back inside Twilight’s pussy. Rarity stood over you on all fours. Rarity skipped any formalities and subsequently slammed her ass down upon your lap, taking your cock deep inside her pussy.

You cried out, and your hands found their way to grip Rarity’s lovely backside. Your hands sank into the plush softness of her ass. And for the first time ever, you could make love to a pony without her growing. Normally just having your cock inside a pony would cause them to swell like an inflating balloon over you.

“Hehe. I almost forget what normal sex was like,” you said, rubbing Rarity’s lovely buttcheeks with both of your hands.

“This feels nice,” Rarity said softly, lightly bouncing her rump up and down your lap.

Twilight's voice spoke up in a worried tone. “Rarity, I hope you are not mad at me. I too want to know what it feels like to have sex with Anon at normal size without getting bigger. I want to be at normal size later.”

“Of course, darling. I will do the same for you, as you did for me.”

“Good. This form of sex is nicely controlled. I suck the growth out of you Rarity, and add it to my own bit by bit, without shattering the pocket dimension.”

For the first time ever you could actually have vanilla sex, without any crazy explosions of growing ponies.

At least… you hoped so as Rarity positioned herself, ready to ‘receive you’. “Let’s roll those dice!” you whispered to yourself as you began to thrust.

Your hopes were soon dashed as, in the midst of your lovemaking, Rarity jumped up in height by several inches. You stopped thrusting out of fear.

"Darling, I'm able to control my growth now. Twilight is feeding on my growth to prevent me from getting out of control."

"Yeah I think this is the closest thing to normal sex as you are going to get." Twilight introjected.

You sighed in relief to this revelation. “Oh… thank goodness!” you chuckled, as you resumed thrusting into the now larger Rarity. Secretly happy that you didn’t lose the sight of your equine partners outgrowing you.

Rarity had a series of growth spurts, followed by sudden shrinking in between. Her ass would grow up into the air like an inflating balloon, before rapidly shrinking back down again. One of the perks of this, is that these different sensations drove the snowy-white pony wild with pleasure.

One moment you would be holding her ass the next her ass would be absolutely gigantic as she became a two-storey house over you. Before shrinking back down to normal size again, once she was small enough again you grabbed her ass. Your hands sank into the succulent, plush flesh of her rump.

You could only describe what is happening here is growth and shrinking fluctuation. You have the best of both worlds. And you couldn’t be happier!

Rarity's size would fluctuate from being merely four and a half feet, to an elephant, a cruise ship, to a mountain, and even beyond. Each time your cock adjusted to her size to match the size of her body. Whatever the case may be you found yourself moaning as you non-stop came inside her with your creamy seed, causing her to have crazy fluctuations of growth and shrinkage at the same time. Rarity for her part was moaning aloud as she continued to bounce her wildly size shifting rump over you.