Inside a massive white marble hall, upon a pink love heart shaped rug, there lay two immense, glorious mounds of alabaster flesh. Upon each side of these majestic white mounds stood a huge spiraling sun, the surrounding fat around it was softer than silk.

The two huge beautiful mountains of flesh metaphorically begged to be squeezed, rubbed, licked and hummed all over. They stood tall and mighty, towering into the air. The fat around them was so thick and impossibly soft, yet firm.

The mounds were so round, so smooth, so plump, and so perfectly shaped it was if they possessed divine power.

Yes, this was a butt, the apex butt. No other butt was greater than this pony’s butt. Even though this pony was trillions of years old, she was not withered by time and looked exactly like the big and sexy mare she always was. Her butt and body remained forever young due to her immortality.

Unfortunately, an annoying multicolored, ethereal tail flowed in an nonexistence wind which obscured her delicious assets. Nonetheless, you, one lucky bastard of a human, dressed in only black pants stood behind these beautiful mountains of ass flesh.

"Oh, my little human. Have you come to praise the sun?" spoke in a soft, all too familiar voice in a sensual tone.

"Yes, milady Celestia."

With that you placed your hands upon Princess Celestia’s enormous rump, digging in deeply into the thick layer of fat.

"Oh Celestia, you have one lovely big fat butt," came your voice in awe of the sweet pony ass before you.

A bright red blush came upon the alicorn mare’s cheeks, embarrassed over your compliment. At the same time her cutie marks glowed with bright light, resulting in her growing an inch taller and her already massive ass becoming a little bigger and fatter.

"Oh Anon, you’re too kind. But my butt isn’t that big."

"Nonsense!" you shouted, giving her massive ass a hard slap, this caused her to utter a lustful moan as her huge fat thick cheeks wobbled from side to side as well as leave a red hand mark upon her rump. "Your butt is so big and amazing! I dare say I never seen such a fine big fat butt."

A broad smile came upon her face, as her cutie marks glowed with blinding light. Within a fraction of a second she literally doubled in size, towering into the air and her butt fattening outward like an inflating balloon.

Her growing bubble butt hit into you with a powerful slam. The force of which knocked you over on the floor with a loud thud.

Celestia gasped in horror.

"Anon! Are you OK?" she shouted in panic.

She sighed in relief, upon seeing that you landed on a pile of soft pillows.

"I’m fine, my big sexy pony," you said, jumping to your feet.

Celestia blushed profusely, her cheeks blushing bright red from your kind words. This in turn caused her ass to grow a little bigger and fatter by a few inches.

With a nasty grin you lunged forward to tightly grip the sides of her wide, white marshmallow flanks. Your hands dug deeply into the thick, bountiful mountains of flesh.

Your tight grip upon her ass caused your fingers to dig deep into the thick, soft fat of her squishy soft, enormous rump. Your applied pressure from your hands compressed down the immense layer of fat from her godly butt.

"Such a great big fat ass you got."

Celestia moaned, her butt growing bigger by a good few inches again.

You began roaming your hands over the wide expanse of her immense bubble butt. With an insane grin on your face you fondled her gigantic ass all over, giving a tight squeezed to her butt here and there.

"So big and fat it is."

Once again Celestia moaned, her butt growing bigger and fatter by several inches over your loving words.

With a flash of golden light with her horn, Celestia lowered your pants to reveal your massive, magically enhanced penis, perfect for praising her glorious backside. All thanks to her Buttmagic.

With your pants now down, you proceeded to thrust forward, slamming your long and thick shaft between her thick fat cheeks.

Like a man possessed, you grinded against her, humping like a madman as you hot dogged your cock between her two massive towering cheeks.

Celestia moaned, pressing her huge cheeks together to smother your cock in a thick layer of soft fat.

"Oh Celestia, your butt! I love your butt!" you shouted excitedly.

Celestia groaned, her rump rising several inches higher into the air and becoming even bigger and fatter from your kind words.

"Oh, I love your butt! It is best butt!" you shouted, pulling back, in order to slap her butt from side to side with your massive cock. All the while Celestia’s butt doubled in size from your praise.

With an insane happy grin you gave her big beautiful butt several hard slaps with your cock, Celestia moaning in approval.

Celestia released a low, sad whine upon noticing that her butt did not grow in size.

“Please Anon, please don't stop complimenting my ass. If you want my butt to get bigger you must utter praise of my butt! Tell me what a big beautiful fat ass I got! Make my butt bigger and fatter with compliments!” she shouted, looking back at you with pleading doggy eyes.

“Oh what a big fat beautiful ass you got. It’s so round and smooth!”

“Yes! Yes!” she shouted excitedly, her buttcheeks thickening by several inches from your praise.

Like a crazed madman, you leaned forward to begin licking her massive butt, trailing your tongue across the vast expanse of her enormous cheeks, Celestia’s moans of approval driving you onward.

"Such a fine, great big fat ass you have. I could lick it forever," you whispered, with your face pressed against her right butt cheek, the soft fat conceding back to the weight of your head.

Your loving comment nearly caused you to fall over, due to her butt expanding outward in appreciation, doubling yet again in size.

"Oh Anon, you’re so sweet," came her soft voice, tears of joy falling down her cheeks over your praise.

You raised your hands up to her butthole… but it was too far away, your hands could only reach halfway up her towering rump, she has just grown too big for you to handle.

Luckily, Celestia soon took the hint, thus she summoned forth a steel step ladder behind her.

You walked up the steps, in order to bury your face between the thick mounds of butt fat so you could lick out her fat, donut thick plump butthole with glee.

Celestia made horse noises as you licked her out. To make things even better for her, you drove a hand into her vagina, now a gaping hole considering how large she has become.

Celestia moaned aloud upon feeling your hand inside her marehood. With a nasty grin, you began to spin your hand around in circles inside her vagina like a cake mixer, causing the mare to cry out in pleasure.

Celestia moaned aloud as you licked her butthole, whilst you metaphorically mixed a cake inside her vagina with your hand.

To amplify the pleasure even more for her, you had moved your other hand toward her butthole in order to finger bang it too. This caused Celestia to literally scream in pleasure, as you used both hands to love her butthole and vagina.

The mare moaned, cried and groaned as you loved her with both hands. Celestia smiled in utmost joy with the love you are giving her butt and vagina.

It was not very long till the mare craned her neck back, before she moaned aloud as she splattered you with thick waves of marecum.

Celestia’s alicorn marehood throbbed powerfully, blasting you in repeated waves of cum.

Celestia moaned in pleasure as she continued to spray you in thick blasts of cum.

By the time she had finished, you looked like a snowman by the sheer amount of her cum covering you.

"That’s my big sexy mare. You got a lovely butt," you said in a soft voice, gently caressing her rump all over with your hands.

Celestia moaned lustfully, her butt growing several inches bigger from your kind words.

In a loving tender show of affection you pressed the fat tip of your rock hard cock against her right buttcheek, pushing back the thick layer of fat.

You held your cock there for a moment, basking in the amazingly soft and warm feel of ass against your cock’s tip.

The moment you pulled your cock away, her butt returned to its perfectly round, smooth shape.

"Hold on my big fat sexy pony, I’m gonna start really praising the sun now," you said in a deep lustful tone.

"YES! WORSHIP MY BIG FAT SUNBUTT! MY LITTLE HUMAN!" she boomed, tears of joy falling down her cheeks, all the while her butt grew several inches higher into the air.

You walked backward to a safe distance, before with reckless abandonment praised her godly butt with kind words.

“Hail Sunbutt! Let her glorious backside grow bigger and even more beautiful!” you chanted, hands raised high in worship of her godly ass.

Celestia moaned aloud as her gigantic, heavenly butt inflated like a balloon. Her divine, all powerful butt only got bigger and bigger, fatter and fatter, heavier and heavier by each passing positive comment from you.

The expansion of her butt was so great, you had to walk backward, in order to avoid being crushed under her rapidly expanding ass.

With a loud clang, the step ladder you used earlier was knocked over, followed by being crushed like a pancake under her giant expanding butt’s immense weight.

The continuously growing ass showed no sign of stopping, in fact the expansion of her rump and body only seemed to get faster and faster by each uttered word of praise from you. Words could not describe an ass, that got only more and more glorious.

Drool began to drip out of your mouth as you stared at her rapidly expanding butt, all the while you showered her with compliments as her ever growing butt continued to expand in size.

When you finally stopped praising her butt, Celestia had grown one hundred feet tall… while sitting down, her head bumped against the ceiling.

Celestia’s butt from your praise had grown into truly epic proportions. Her tremendous ass now took up the entire hall, her massive flanks had become so wide that the soft thick fat belonging to them was now being compressed back, as they bumped against the walls on both sides of the room. The walls themselves struggled to contain her giant rump.

With a big smile on your face you walked forward into her butt’s humongous, right buttcheek, pushing your body against it into the silky soft flesh of her gigantic rump, the soft fat conceded back through your applied pressure, due to pressing yourself against her massive ass.

You uttered a joyful sigh, before you gave her giant butt a loving kiss on the cheek.

“Oh Anon, you're so romantic,” came Celestia’s soft angelic voice, overwhelmed with emotion as tears of joy fell down her cheeks.

“My dear, sweet and gentle giant Princess Celestia. I am one lucky bastard of a human. For you are the most beautiful, sexy, kind hearted mare I ever known. May all the lesser smaller butts bow before your massive fat butt to rule them all! May even the entire multiverse bow before the glory of the greatest butt ever.”

“I love you, Princess Celestia. With all my heart,” you finished in a soft voice, before giving her ass a soft kiss.

“Oh Anon! I love you too!” she boomed in the traditional royal canterlot voice, tears of pure happiness falling down her cheeks.

For a moment nothing happened, but then there was a loud rumbling sound, before her giant ass violently exploded in size.

Your eyes widen in horror as her giant expanding butt came at you like a tidal wave, before pushing you across the room, followed by slamming you hard against the wall.

Dust and rubble fell down from the ceiling as Celestia’s quickly growing ass began destroying her own castle. The walls groaned before they gave way as her massive rapidly expanding flanks blasted through the walls, leaving dust and rubble in their wake as her butt grew out into the surrounding countryside.

There was a large dark, spooky forest in this part of the countryside. Nonetheless, the animals fled in terror at the sight of Celestia’s rapidly expanding rump out of the castle.

Her gargantuan butt continued to expand, snapping thousands of trees like match sticks along with crushing them into sawdust as her giant ass continued to grow in size.

When she finally stopped growing her head stood above the clouds into outer space, along with her now truly gigantic rump standing far taller and wider than any mountain on the planet.

Celestia was a really big pony now. But still not big enough, she can never be big enough.

The animals of the Everfree Forest now truly knew fear. And so did the ponies of Ponyville as they stared out at the giant alicorn, who was looming dangerously close to their town at the edge of the forest… what’s left of the forest at least.

A certain yellow pegasus cried over the devastation Celestia’s giant ass had unleashed upon the Everfree Forest.

Back in the castle... what's left of it anyway. Celestia’s giant ass pressed against the only remaining wall, as the soft flesh of her enormous butt folded around your entire body in a thick, warm blanket made of unbelievably soft butt fat. This left you in total darkness, but at least you had a giant, soft fat ass hugging your whole body all over.

You would be dead if not for her powerful protective Buttmagic, after all Celestia’s butt never hurts a good human.

Before you could even begin to worry about suffocating, you felt a light tingling flow through your body, filling your body with life giving oxygen

“Uhhh Anon, I think your praise broke my castle and destroyed the Everfree Forest,” came her voice through your head, telepathically speaking to you. It now being impossible to speak directly to her, since her head is in space.

“Oh damn. Can you fix it?”

“Yes,” she answered flatly, before her voice shifted into a soft, affectionate tone. “But not right now my handsome little cuddlewozems.”

With that you two went silent. You basked in the wonderful feeling of being gently cuddled all over your entire body by the silky soft fat from her gigantic ass. While she enjoyed feeling your small body being held firmly against the wall, loving the feel of your tiny cock poking hard against her colossal ass, it barely pushing back the immense layer of soft fat.

This was love. Love between a little human and a giant pony goddess.

“Anon?” came her sweet, soft voice.

“Yes, my beautiful giant mare?”

Celestia’s enormous butt grew several inches thicker due to your compliment.

“Anon stop! If you keep on praising my butt you’ll destroy all of Equestria and beyond!” she shouted.

Knowing that Celestia’s body can easily withstand the heat and pressure of a hypergiant star’s core without even a scratch, nothing would be able to stop her growing butt. If you continued to praise her ass it would just keep growing and growing, never stopping until it consumed the entire universe in giant pony butt... and even then, it could break the very walls of the universe and expand out into the multiverse, ever growing in size until even all the multiverse itself is destroyed by her all powerful alicorn butt. An overpowered magical butt that could not be stopped.

At least the Sunbutt Apocalypse would be easy on the eyes.

“OK OK! But you know I hate this part, it tears my heart out to do this.”

“I’m a big girl, I can take it my love.”

You took a deep breath, you began to shout at her. “Look at you! You’re so ugly with your bony thin butt!”

Your heart skipped a beat from hearing Celestia sob in grief, along with her ass shrinking back several inches.

“Are you OK Celestia? Was I too harsh?!” you shouted in panic.

“Just keep going my love. I know you don't mean it,” she shouted.

With a heavy sigh, you returned to insulting the beautiful giant mare.

“I never loved you! Who could love a thin ugly horse like you?!”

Her ass shrank a massive amount from your nasty words, freeing you from her giant butt’s embrace from against the wall.

Little by little her ass and body retracted, growing smaller by each cruel uttered word.

When you finally stopped insulting her, she returned to her base form, merely six foot tall, she still had a great big fat ass even now, but it could be so much more glorious.

Celestia shook like a leaf before you, as she cried her eyes out. Her huge eyes were now horribly bloodshot as tears streamed down her cheeks whilst she cried like a baby.

Celestia’s butt saved Equestria countless times from the forces of evil… by sitting on them. She likes to hear praise from those she loves and so does her butt, which grows bigger and bigger in size the more you praise it. The only downside of having such a great magically powerful butt is that it makes her oversensitive, especially if she hears hurtful things being said to her by those she loves, which causes her and her butt to become smaller.

Without a word you ran forward to embrace her, wrapping your arms around her long swan like neck, before kissing her passionately.

A chill went down your spine when you did not feel her return the kiss. In desperation to cheer up the poor distraught mare, you placed a hand upon her left cutie mark, where you proceeded to give the soft fat of her flank a gentle squeeze.

Celestia moaned, returning the kiss with gusto. The mare’s stronger, longer and thicker tongue gently danced with your smaller and weaker tongue in a tender display of love between a human and a shrunken, giant pony

The mare moaned aloud when she felt you join your other hand upon her right cutie mark, where you proceeded to give it a gentle squeeze.

With tender affection, you roamed both hands over her rump, massaging it and giving it a gentle squeeze here and there.

The kiss you two shared while your hands massaged her butt seemed like it lasted forever. But, eventually, you parted lips. Her huge magenta eyes stared into your own, far smaller human eyes with warmth and love behind them.

“Say, how about a romantic date tonight with me using your butt as a bouncy castle?“

Celestia squealed happily, wrapping her hooves around you, into a loving hug.

“That sounds wonderful! But first I gotta fix the mess we created.“

Celestia horn became surrounded in a golden light, before there was a blinding flash of light. When the light faded the castle was fully repaired along with the Everfree Forest being completely restored back to life, just like it was before Celestia’s ass destroyed it.

“Luckily, you got overpowered horse magic.“

“I don’t abuse it… much. Now, praise the sun to get that bouncy castle ready, before we have tiny human on giant pony sex.“

“Yes ma'am!“ you said with a salute.

“Oh, you are such a gentleman,“ she said softly, beaming you a warm smile.

“What a great big fat ass you got.“

Celestia moaned sensually, growing several inches taller along with her butt growing in size from your praise.

The End

Author's Note

Praise The Sun!