Luna Wants To Be On Top

by Bendy

Rating: mature
Tags: Human, Princess Luna, My Little Pony: Friendship is Magic, Second Person, Comedy, Romance, Sex, Random
Length: 3825

Princess Luna is a beautiful, big mare. Unfortunately, that becomes a big problem when she wants to be on top of you during love making.

Princess Luna is a beautiful, big mare. Unfortunately, that becomes a big problem when she wants to be on top of you during love making.

Published 2017-02-09 15:20:01 UTC
Last updated 2017-02-12 14:46:28 UTC

Luna Desires To Be On Top

Within a dimly lit room, you, a human lay upon a massive, lavender love heart shaped bed. You were simply dressed in white underpants. A large, dark blue alicorn known as Princess Luna lay next to you. Her huge bubble butt was quite a sight to behold. Her cheeks were so wide you would be barely even able to hold both her cutie marks from behind her.

“Make love to us, our little handsome ape,” she spoke in a soft voice.

“Yes, my sweet big moon princess!” you exclaimed excitedly.

With that, you pulled your underpants down, followed by throwing them across the room into yonder wall. You then proceeded to walk around the prone mare, positioning yourself behind her glorious moonbutt.

“Stop!” she exclaimed, raising a hoof. “We wish for thee to go under us, so we can mount thee and slam our massive mighty buttocks upon thee!” she commanded.

“Uhh… Luna. I’m not sure if that’s going to work,” you said, your voice low and nervous.

“How so?” she inquired curiously, perking her ears.

“Umm… you’re… too big.”

“Are thee calling us fat?!” she said in a quiet voice, laced with venom.

“No! It’s just that my body is far weaker compared to yours. Your sheer weight will break my pelvis.”

“Thou are calling us fat! How dare thee?!” she shouted, standing up onto her four hooves to give you a most hateful glare.

“Luna, don’t you understand? Your ass will break my pelvis. You’re just too big,” you exclaimed.

“What about all the exercise thou has gotten mounting our backside from behind? That surely has made thee strong enough to withstand our butttocks? How does thou know our butt won’t break thine pelvis?”

“Luna please, you will most certainly break my pelvis!” you shouted.

“Even if we did break thine pelvis! We can easily heal it with magic!” she protested.

“I’m not willing to endure that pain,” you spoke firmly.

Luna lowered her head, tears falling down her cheeks, speaking in a low voice. “We…. we understand. The pain would override the pleasure from our massive behind mounting thine weak and small body.”

You could not stand to see her cry, thus you gently placed a hand upon her cheek and spoke in a soft voice. “You could always be on top in the dream world.”

Luna gasped in joy, before wrapping her hooves around your body to….to... ‘hug’ you with a bone crushing embrace with her super alicorn strength. This caused you to scream bloody murder in pain as your bones cracked sickeningly from her tremendous strength.

“Aaaaaahhhhhhhhhhh!” you screamed in agony!

Thankfully, she soon acted quickly to relieve the pain and fix your bones with a flick of her magic from her horn.

“We… we are most sorry about that,” came her voice, low and soft.

“It’s Okay, Luna. You sometimes forget your own strength,” you spoke in a low, raspy voice.

“And our weight,” she added somberly.

“Hey, I love meat on my mare. I don’t want a bony thin mare. I like big butts and I cannot lie.” you said sensually, reaching an arm around to place it upon her right buttcheek, sinking your fingers into the thick layers of squishy soft fat.

Luna made a happy sound like a dog’s chew toy, before she roughly pushed you onto your back. You were about to voice your protest, but your words died in your throat when she merely lay herself down next to you.

“Let us sleep so we can slam our massive buttocks upon thee without causing pain nor breaking thine pelvis!” she boomed in her powerful voice.

“Okay, you big crazy horse.” you said softly, leaning toward her.

The both of you exchanged a brief, gentle kiss before closing your eyes to drift off to sleep minutes later.

You opened… your eyes… in the dream world to find yourself lying upon a very squishy soft ground, your body sinking deeply into it. You sat up to survey your environment to see nothing but a sea of dark blue that went on seemingly forever and ever. Above you stood space, it’s stars twinkling beautifully.

“Um Luna, where are you?” you inquired.

“Why, you are on our butt, my little human.” she said in a mocking tone.

“I’m… on your butt?” you said in a most bewildered tone.

You pressed your hand down upon the ‘ground’ only for you to feel a very thin line of soft fur, with squishy soft fat beneath it. Your applied pressure made your hand sink deep into the mass of soft thickness below.

“Yes. Our butt is far too small in the waking world. Here, our butt even surpasses our sister’s butt in size.”

“How big is your butt?” you said, low and nervous.

“Two million and five hundred thousand light years in width and height. Impressive, is it not?”

“Eh, could be bigger,” you said, not sounding very impressed.

“You’re right. Our butt is still far too small! So bony thin.”

A magical mirror appeared before you, granting you the magnificent sight of Luna’s astronomical sized butt in all her glory by a view from afar.

You saw a galaxy being pulled toward her super-massive, black hole of an asshole. Her butthole devoured the galaxy, its matter being converted into fat to add to the glory of her ass.

Your cock twitched hard, loving the sight of her butt thickening out by a few billion light years.

Luna giggled, before she repeatedly sent galaxy after galaxy straight into her asshole, each one ballooning her ass out even further across time and space.

Her growing ass was quite a sight to behold. This naturally made you become as hard as a diamond. Your hand slipped down to your cock to hold it firmly. From there you jerked your hand up and down your cock, loving the sight of Luna’s growing butt.

Luna made a loud neigh in excitement, loving the sight of you masturbating to her butt. So, with that she grabbed entire clusters of galaxies, before sending them hurtling into her ass all at once, growing her ass to make it more visually pleasing for you.

With that her butt exploded in size, expanding quadrillions of light years across the universe per second, growing faster and faster as galaxy after galaxy was swallowed into her butt. The speed her ass was expanding was so great, entire megaclusters of galaxies were being swallowed up by her butt alone bumping against them as it grew in size.

Luna gave a sad sigh when the last of the universe's stars and mass were swallowed up by her butt. You and Luna’s giant butt were the only things left in the universe.

“Is our butt big enough now?” she asked in a joking a manner.

“Meh, I think it could be bigger.”

“Oh don’t be ridiculous. My butt is big enough, I’m trying to go on a diet by not visiting the all you can eat forever multiverse buffet.”

A long, awkward silence ensued, neither of you saying a word. Eventually, you decided to break the ice. “Can I bounce on your ass?”

“Sure, go ahead my little ape,” she beamed happily.

With that, you stood onto your feet, before taking a jump. You went high into the air, before falling back down again. Like a compressed spring, your body sank deep into the thick layers of soft fat, before you were sent hurtling upward, the very same thing happening again when you came down.

Luna giggled happily, loving the sight of you smiling like an idiot as you bounced up and down her giant butt like a bouncy castle.

This went on for quite some time, until at one point during mid bounce there came a huge, dark blue mass, which tackled you to the ground, entrapping you in total darkness from under a butt that was so large it covered your entire body. The heavy mass of squishy soft flesh pressed you deep into the unending, soft thickness of Luna’s rump below. Though, in actuality you two were only pressing down a tiny amount of fat down her universe sized butt.

The weight of this ‘smaller’ Luna was so great you could not move an inch, the fat of her butt folded around your body like soft dough, smothering you under an immensely thick layer of fat belonging to her mighty alicorn butt. Somehow, you felt no pain and could still breathe from under her giant butt.

“Hmm, it seems thine phallus is so ill-equipped it can’t even reach our moon flag planter,” she spoke in a mocking tone.

You merely gave an angry mumble through the mass of fat covering your mouth.

“Too big of a butt?! That's heresy! Oh, just for that this small moon shall become bigger!”

Luna's horn flashed with blinding light. Her fleshy cheeks rippled like jello as she slowly expanded, her legs and whole body in general were also rapidly elongating.

You moaned in pure bliss into the mass of expanding fat above. At the feel of your tiny cock poking her backside, Luna's body only increased in expansion speed.

More and more mass, meat and fat added to her rump. Her butt was already the size of a small city.

‘I love you, Luna’ you tried to say through the mass of flesh from above you, but all that came out was an incomprehensible mumble.

“I love you too!” she boomed.

With that Luna’s butt violently expanded in size, rapidly stretching across the other super-massive rump she sat upon.

On and on, Luna's rump swelled in size by a faster and faster rate, overjoyed that you told her that you loved her.

A soft kiss from you upon her cheek only caused her rump to expand exponentially faster. Loud moans left the growing alicorn.

First her butt became the size of a galaxy. However with the help of another kiss upon her cheek it caused her rump to have a massive growth spurt, to make her butt the size of three galaxies.

The great speed of her growing butt increased even further, quadrupling in size by every passing second.

Luna's butt was still quite small compared to the other one she sat upon, but it was quickly catching up. Her ballooning cheeks rapidly spread across the vast surface of the other Luna's butt, the weight of her immensely heavy rump depressing the squishy soft fat, pushing your small form deep into the thick layers of soft, flabby flesh.

The cosmic giant mare cried out, when she felt you kiss her cheek yet again. Her rump felt honored by your praise, causing it to go through a series of massive growth spurts.

Every passing millisecond her rump quadrupled in size.

Soon enough, the ‘little’ Luna was halfway there in size. Soon, her rump shall be just as big and glorious as the butt she sat upon.

Powered by your love, Luna’s rump quickly rose to challenge the other. Within the space of mere minutes, her butt had finally grown to be just as big as the other, sandwiching you between two universe sized butts.

“Now, we shall summon a more modest sized, yet still big version of ourself to ride atop thee and--”

…. and then there came a loud buzzing sound, making both of you awake with a start.

“Die technological abomination! Thou has ruined our dream with our lover!” ” Luna roared, before blasting the buzzing alarm into dust next to the bed with a deadly beam of pure, dark blue energy.

The End

Bonus Chapter

Bonus Chapter

After yet another long and tedious day you and Luna were once again drifting off to sleep, but this time there was no alarm to interrupt your shared dream.

Slowly, your eyes opened to find yourself in the dream world once again. You could see nothing but darkness. Sandwiching between you on both sides was two super-massive, universe sized rumps.

They felt squishy soft and warm to the touch, the soft fat folding around your body, pressing against every inch of your small form, with their immeasurable weight. With a little help from Luna, you could see these two enormous butts in all their glory whenever you wanted.

“Is our butts big enough for thee?” Luna inquired curiously.

‘Eh, I think they could be bigger’ you said… or tried to say through the mass of flab covering your face… entire body.

“Oh yes, we think our butts need to get bigger. So bony thin they are.”

With that, the two massive butts began to resume their expansion, growing together to reach out to the very walls of the universe, which were invisible.

The growing asses soon reached the walls, their soft fat deeply depressing against them. The more the butts grew the more squishy soft fat was being pushed back.

The walls held strong against the vast tide of growing booty meat pushing against them. However after about five minutes, small cracks here and there began to emerge over the wall. As the cheeks ever ballooned outward in size, with more and more fat being compressed the cracks began to slowly grow in size.

‘Come on Luna, tear down that wall.’ you tried to say, but only mumbled through her vast mass of fat.

A moment later there came a low rumble, before both asses went through a humongous growth spurt.

The walls of the universe shattered like glass, allowing the two astronomical sized butts to break free from their prison.

Countless see-through spheres floated in a dark void of nothing from all around the two giant butts of Luna. Each sphere contained an entire universe, with stars and other matter. Every passing second a new universe popped into existence. Some of them even had the gall to be bigger than Luna's butts.

“Heresy! Nothing can be bigger than our butts!” she roared.

Now with nothing in the way to impede their growth they began to expand. The two massive asses pulled the universes towards them, sucking them up and converting the mass into fat to add to the glory of their butts. The butts swelled larger and larger, growing faster and faster with each universe devoured. More and more fat, meat and weight added to their growing rumps.

The cosmic alicorn rumps grew so large the universe's began to look insignificant before their gigantic, ever growing size. First footballs, soon followed by tennis balls, then marbles, then a mere mist and then mere atoms. Now the universes were truly nothing, when compared to the might and glory of Luna’s super-massive butts.

Nonetheless, despite the universes insignificance size when compared to Luna’s butts, they were still doing their job, helping to swell the behemoth butts even larger in size. Providing unlimited growth to the rumps. Her rumps were now truly of incomprehensible size, swelling larger and larger without end, growing heavier and heavier, fatter and fatter, bigger and bigger.

The invisible walls of the very multiverse sped away from the growing rumps. The growing asses gave chase after the walls, expanding faster and faster to try meet them. Alas, the walls of the multiverse moved simply too fast. No matter how much universes the butts devoured to grow faster, the walls would still even move faster away.

This resulted in an unending chase. However you were not paying too much attention to that. Most of your attention was on the absolutely enormous asses that just kept growing and growing without end.

The warm softness of her massive rumps pressed against your naked form. Your tiny cock poked hard against the silky soft and warm rump before you. You decided to no longer just watch them grow, but to begin praising her glorious growing butt before you.

You made muffled moans into the expanding, unending mass. Your hands squeezed and rubbed her squishy soft flesh between your fingers. You licked, kissed, rubbed, and squeezed the massive butt before you, causing Luna to moan aloud and her butts to grow even faster to the point of nearly touching the walls of the multiverse.

Your hands dug deep into the thick uncountable layers of silky soft fat. The applied pressure from your hands deeply compressed down the immense layers of fat from her godly butt. Though, in perspective, you were merely pushing back a small amount of her flesh upon a tiny portion of her humongous rump. You were but a mere, tiny life form against an absolutely enormous, cosmic horse butt far bigger than even a universe.

Finally, your cock twitched hard, before with a loud groan you unleashed your seed, your cum staining only a tiny portion upon her rump.

Luna’s butts reacted positively to this by violently growth spurting to give the walls of the multiverse a hard slap, leaving large cracks upon it. Unfortunately, the walls quickly sped away like cowards shortly after.

‘I love you Luna,’ you tried to say through the unending, ever growing thickness, but all that came out was a mere mumble.

Luna uttered a loud, excited neigh, before her rumps overdrived in expansion, faster than ever before. The cheeks quickly grew out to slam against the walls of the multiverse, shattering them like glass.

Like harbingers of doom the two humongous butts of incomprehensible, and growing size loomed over the sea of multiverses spheres before them. Each see-through sphere was a mere football compared to Luna's colossal butts.

Hungrily Luna’s gargantuan butts pulled the multiverses towards them, devouring the multiverses and all their universes inside them like nothing. Luna’s butts swelled larger and larger, quickly growing in size to make the multiverses look like mere bacteria before the glory of her butts.

Each multiverse popping into existence was quickly devoured by Luna's rumps, helping them grow even larger at a quicker rate. Alas, there appeared to be no walls in this place, just an unending darkness for which Luna’s butts could truly grow and grow forever and ever, and be truly the biggest things to ever exist.

Luna’s butts were the most powerful force in all existence. Nothing could match the glory, the size and power of her ever growing butts. Countless multiverses were gobbled up by the butts, serving to only help the butts grow bigger and bigger without end.

“Uhhhh Luna, don’t get me wrong I love your growing butt show, but could we have sex now?” you inquired.

With that a vast wall of dark blue, which was Luna’s butt lifted off you, freeing your small form from it’s massive, uncountable weight.

You made to sit up, but were quickly brought back down into your prone state when an African elephant sized Luna slammed down upon you, in trapping you in darkness once again from under a massive ass.

“Make love to us, our little human,” she said in a hot breathy voice.

You humped upward to try reach her marehood, but it was completely useless. Her rump was simply too large, your cock poked between her massive, thick dark blue buns.

You uttered a loud, frustrated groan, angry you could not make love to her. Luna lifted her rump off your face to allow you to speak.

“Luna… I can’t make love to you, your butt is too big!” you shouted.

“Such heresy, Anon. This butt is not too big! If anything it is too small. Want us to make it grow?”

“No, just grow my dick so I can fuck it!” you shouted.

“It shall be done!” she boomed.

A loud moan left you, feeling your shaft grow in size, pressing into her hot, wet and soft, dripping wet marehood. Your growing cock was squeezed by the powerful walls of her alicorn vagina.

When your cock’s tip came to rest against her deepest barrier it finally stopped growing. Your thick and long cock was now encased by her hot marehood, your cock was squeezed tightly within her, her soft and wet walls massaging your member with a wonderful feeling of pulling and releasing.

Luna giggled happily, loving the sounds of your muffled grunts and moans into her massive ass. The mare then began to slowly lift her huge rump to the point of your tip nearly exiting her, before slamming her massive ass down hard upon you.

Repeatedly, without stop Luna slammed her massive, heavy rump upon you. If this was the waking world, you were pretty sure there would be nothing left of you but a pile of bloody jelly by now.

On and on, Luna slammed her enormous rump upon you. She laughed and moaned aloud, overjoyed that her massive rump did not break your pelvis nor caused terrible pain.

Her soft, heavy rump slamming upon you again and again was beginning to take its toll upon you. A powerful, tickling sensation coursed through your rod.

“Luna…. I’m about to cum,” came your voice, low and weak.

“Explode inside us our love!” she boomed, slamming her butt hard down upon you, her marehood squeezing your cock hard, demanding its seed.

With that, you uttered a muffled scream into her soft flabby butt as your cock came like a volcano, showering her insides with thick jet after jet of your creamy cum. Her marehood squeezed your member hard, milking it for more cum. Alas, the sheer amount of your cum was so much, it began to spurt out of her marehood showering you and her with thick strands of your creamy love cream.

Your cum went a great… well actually a very small distance like a river over the cosmic, ever growing butt, leaving a small white mark upon an unending sea of dark blue.

“Luna, you got the biggest, fattest, best butt of all existence,” you proudly proclaimed.

The Luna on top of you moaned aloud, quickly growing in size atop you. Your shaft began to fill her marehood less and less, until it eventually slipped out.

Now, a third butt of Luna’s began to grow between the two massive growing, multiverse eating butts, hoping to one day to be just as inconceivably large as them.

Unfortunately, there came a loud voice out of nowhere.

"Get up!" roared a feminine voice.

The both of you awoke to see Celestia standing next to your bed, looking angry with narrowed eyes.

“Sister, why?! We were having such a wonderful dream with our lover!?” she shouted in shock.

“Yeah!” you simply shouted.

“You two slept the whole weekend. It’s Monday, time to get up for work.”

“But sister, just let our butt grow a little bigger. So we can--

“No! Luna, you can dream about having Anon worshiping your multiverse eating asses tonight. But now, you got work.”

Both of you groaned, knowing she was right, but still hating her a little. So, you got up out of bed leaving behind sweet dreams of super-massive multiverse devouring, ever growing butts.