Towering, lavender stem like ‘trees’ stood hundreds of miles high, casting vast dark shadows upon the forest floor, which was made of some sort of... purple ‘metal’. In fact, the trees themselves appeared to be made of some kind of metal. A most unusual metal, for it was silky soft to the touch and actually felt like hair.
The metal upon the ground itself gave off a pleasant warmness, it felt as if it was soft flesh rather than hard steel.
The forest seemed to go on and on without end. It was literally billions of miles worth of forest and perhaps even more. At the ‘back’ of the forest there was two dark, gigantic gaping holes just between two absolutely enormous lavender mountains. From atop them there lay a strange, dark blue, belt like object, with a pink and purple stripe which ran through the middle of it, as it hanged down, between the two massive mountains. On each side of these colossal purple mountains was a strange star marking, a large pink star surrounded by five smaller white stars.
Elsewhere, if one stood above the canopy of this area within the forest they would see a pair of purple eyes, billions of miles across, which looked downward with bedroom eyes upon a tiny, perfectly square shaped wooden cabin atop what appeared to be a gigantic horse's snout.
This place too had those weird purple trees. Infact, the metal hair appeared to cover almost the entirety of this being’s body. The size of this creature was godly. Nearby, a blue, icy gas giant was a mere tiny marble in comparison to this giant purple horse.
Nestled within the cabin was you, a mere human that might as well be microscopic to the big pony you live on. You slept peacefully upon a pink, love heart shaped bed. A thick, soft purple blanket covered you, providing you with perfectly comfortable warmth.
Suddenly, the lights came on, resulting in you to unleash an annoyed groan.
"Uhhh, what?" you grumbled, rubbing your eyes.
"Time to get up sleepy head," came a soft feminine voice from all around you.
"Can’t it wait until--
"No, it’s important Anon!" she said in a raised, stern voice.
"Right! Fine! I’m getting up!" you shouted, jumping out of bed.
Twilight squealed excitedly, making a sound like a squeaking ball before your blanket shattered into a swarm of countless tiny nanomachines. You shuddered in fear as the nanomachines flowed over you, smothering your entire body in a matter of seconds.
Sure, they felt warm and silky soft, but it was still rather scary feeling them crawling over your whole body, their tiny legs feeling like that of a spider’s.
Fortunately, it only lasted for a few seconds. Once done, the nanomachines massed back together into your blanket.
You were now fully dressed in a fine black tuxedo, black pants and fancy black shoes.
"Uh Twilight, what gives, you never dress me like this?" you said with a most bewildered look on your face.
Twilight giggled happily. "Oh, I just want you to look extra handsome for our date my cute little human."
"Date? Whoa there giant robot horse lady, I’m not sure if--
"Oh Anon. There’s no need to feel nervous around me. I love you for being small and I want you to come inside me and cum inside me while inside me."
"Uh, I’m not sure about boning a giant robot lady. How am I supposed to please you in bed?" you said with raised eyebrows.
The mare giggled. "By sticking your penis inside me silly."
"But you’re a giant robot horse?!" you shouted with your hands raised high in exasperation.
"So? I can teleport you inside my vagina, where you can rub your dick off my G-spot and lick it at the same time!" she bellowed.
"Listen, I’m not sure about this whole thing. It’s all so sudden and--
"It’s because my butt is small isn’t it?" she said in a low, sad voice.
"Uh, your butt is massive. Terrifyingly massive!" you said with your arms outstretched wide.
"Prove it! By looking upon the biggest butt in the universe!" she shouted dramatically.
"That won’t be necessa--
With a flash you found yourself atop Twilight's horn. A thick layer of purple nanomachines were wrapped around your body, the nanomachines gave off a pleasant warmth and felt like smooth silk as they protected your body from the cold vacuum of space.
"Twilight, you’re scaring me!" you shouted in a panicked voice.
The nanomachines covering your body gave you a gentle, reassuring squeeze. "Anon, relax. You’re perfectly safe. I won’t ever hurt you my little human," she said softly.
"Even... even if I reject your love and just want to remain friends?" you asked in a low, fearful tone.
Twilight’s nanomachines gave you another gentle squeeze in response.
"While that would sadden me, I value above all else the wonderful friendship we share. You live on me, your giant robot pony friend, who is just a small bit bigger than an average solar system, by only a few billion miles or so. I do hope one day I’ll be as big as Celestia."
You nodded, beckoning her to continue.
"I can’t tell you how boring it is with nothing but nigh omnipotent, giant robot ponies to talk to for a thousand years at a time on average, before one of you stupid sexy humans get randomly teleported into my universe, right on top of me."
"Wait, I’m not the first human to live on you?" you asked in a most bewildered tone.
"No, you’re not. I have had many a human live on me for the past sixty five million years I have lived, " suddenly her voice went low and sad. "I loved and cared for each human before their mortality took them away from me. They live on in my memory files forever and I masturbate to those memories when I feel lonely."
Twilight coughed with a hoof over her mouth, before speaking again.
"Anyway, my puny little human it is time you look upon the biggest butt in the universe!" she shouted, followed shortly by her instructing the nanomachines to create a pair of binoculars over your eyes.
Now with the binoculars to enhance your vision you could see from the distance a giant white, winged robot pony with a flowing multicolored tail and mane. Even an elliptical galaxy looked a mere ant when compared to this pony. She had a butt so massive and powerful it had millions of galaxies orbiting around it. Each sapient minded alien species on each planet raised their hands, claws, tentacles and whatever in worship of the astronomical butt.
There were also a few small villages on Princess Celestia’s rump. The chosen few who proved themselves worthy by showing their love of Celestia’s ass. These lucky ones got to live upon Celestia’s butt itself and partake in its glory up close and personal.
"Behold puny human! Robot Princess Celestia’s butt!" boomed Twilight.
"Danm! That’s a big butt!” you said in awe as you stared upon the giant butt in the distance.
"Indeed, it's a butt so powerful it farts out galaxies," she said staring at the giant beautiful butt. "Princess Celestia even told me one day her butt will become so big and powerful she will be able to create entire parallel universes by farting."
She sighed sadly. "I only fart out a single star every twenty four hours… and it's not even a hypergiant either. Just a mere dwarf star," came her voice, low and sad.
You rubbed your belly, gently stroking her nanomachines. "There, there, Twilight. One day your butt will be big and powerful enough to fart out parallel universes. Thus you’ll have quatrillions of beings worshiping your butt just like Celestia."
With a flash you found yourself before Twilight’s gigantic face, who stared down upon you with giant teary eyes filled with hope.
"Oh Anon, does this mean, you want to be my lover?" she asked in a low voice.
"Yeah, you are a big sexy robot pony after all," you said sexfully, looking upon her with bedroom eyes.
"Oh Anon," she said sensually, before using her nanomachines to pull you toward her enormous lower lip far faster than the speed of light.
Once there, you leaned your head forward to give the astronomical sized lips of the giant robot pony a tender kiss, her nanomachines gently stroking the back of your neck as you did so.
The moment you pulled away you gasped, feeling your manhood being gently stroked all over by her nanomachines. The warm, unbelievably soft tiny machines milked you for all you were worth, gently rubbing your entire shaft as if they were trillions of tiny hands, eliciting you to cry out in ecstasy.
Twilight's nanomachine handjob quickly broke down your defences like an unstoppable zerg rush. In less than a minute, you had grunted as you blasted forth your semen. Her nanomachines absorbed all your essence, not leaving behind a single drop for the coldness of space to take.
Twilight giggled, lifting a tiny, see-through sphere bubble containing your cum before your face briefly, before sending it hurtling into her mouth.
"Mmm!" she moaned, licking her lips. "Tasty organic life love cream."
"Let me worship your butt!" you shouted with your hands raised high.
With a flash you found yourself before her giant purple robot pony butt. Billions of miles wide and high this giant robot horse booty was. You were insignificant, tiny bacteria before her giant and mighty robot pony butt. Her stary cutie marks glowed brightly in excitement, loving the attention your tiny human eyes gave her immense rump.
"Let me praise your glorious butt!" you shouted, your hands reaching out to the giant pony ass before you.
Twilight squealed in joy, before she used her nanomachines to fly you at great speed toward her giant right buttcheek. Once there you wasted no time to begin praising her butt. Your hands reached outward to gently rub a tiny portion of her astronomical sized butt.
You licked and kissed the giant fat, plump ass before you, causing the giant robot mare to moan aloud as you used your hands to dig deep into the thick, bountiful layer of silky soft, artificial flesh like material before you. Your tight grip upon her had caused your fingers to dig deep into the billions of miles thick, soft fat of her squishy soft, enormous rump. The applied pressure from your hands deeply compressed down the immense layer of fat from her godly butt.
Though, in perspective, you were merely pushing back a small amount of her synthetic flesh upon a tiny portion of her humongous fat rump. You were but a mere, tiny life form against an absolutely enormous, cosmic robot pony butt that was even bigger than your home solar system.
For you could only see a vast, seemingly endless sea of purple that was Twilight's rump. You were but a mere microscopic germ. Without the aid of her nanomachines and teleportation you could only travel a tiny distance over her giant butt before dying of old age. Even if you were immortal, it still would take you millions of years to reach the end of Twilight's vast fat rump.
You uttered a low moan when you felt Twilight’s tiny machines began gently caressing your cock. Swarms of microscopic machines inside your testicles helped refill your sack with semen. With her help you quickly regained a raging boner to worship her amazing massive backside.
Your tiny cock poked hard against her colossal rump, compressing the thick layer of soft fat back slightly. Nonetheless, Twilight moaned in approval, loving the feel of your small cock worshiping her giant robot pony booty before it.
Twilight moaned aloud as she used her nanomachines to move your tiny body all over her gargantuan butt at great speed. Placing you here and there for a short while to worship her giant butt in all her favorite places. You payed homage to her butt, humping like a madman, licking, kissing and rubbing her glorious giant butt all over, Twilight crying out in pure bliss as you did so.
This continued for quite some time. Twilight the robot pony moved you, her little human lover all over her gigantic butt, loving your moans of arousal and the feel of your small body making sweet love to her glorious, massive backside.
Eventually, she held you in place against her left cutie mark. Once there, you gave the pink massive star (you could nowhere near see the entirety of) a tender kiss, Twilight moaning in bliss as you did so.
"Anon, my sweet little human. Are you ready to go inside my vagina?" she spoke in a soft, angelic voice.
"It… it is safe in there right? I won’t die in there?" you asked in a low, nervous voice.
"Yes, my love. You have nothing to fear inside me. I never, ever hurt a human inside or outside me," as she spoke her nanomachines gave your body a gentle squeeze.
You took a deep breath, bracing yourself for what was to come. "OK, Twilight I’m ready to go inside you."
With that Twilight’s nanomachines flew you at tremendous speed over her vast rump, helping you rapidly approach toward her marehood.
You soon found yourself staring at the massive black hole that was her vagina. You shuddered in fear at the sight of her love tunnel, feeling weak and insignificant before her beautiful flower.
Sensing your fear, the tiny machines around your body gave you a gentle squeeze as she spoke to you in a soft voice. "Don’t be scared little one, my robot pussy only wants your love."
"I-I… love you Twilight. I trust you not to hurt me in there," you spoke in a low, fearful tone.
You felt her nanomachines move over your lips, before they made a moist, soft feeling wash over them, simulating her nanomachines gently kissing your lips.
"I love you too, Anon. I promise, I won’t ever hurt you my sweet little human," came her voice, whispering into your ear as her tiny machines gently rubbed your body all over.
You sighed contently, loving the feel of her nanomachines massaging your entire body as she flew your tiny human body into the dark abyss that was her vagina.
You could not see anything in here. It was pitch black, which was quite unnerving. When Twilight felt your fear, her nanomachines on your arm gently rubbed against you.
"It’s Ok sweetheart, I’m here," came her gentle voice.
You relaxed, knowing this giant robot pony loved you and would never hurt you.
When you reached a certain point inside her, the upper walls of her vagina lit up with faint purple light. Twilight’s nanomachines then proceeded to lift you up to her G-spot.
Without any hesitation whatsoever, you reached your hands out to begin rubbing her most sensitive place inside her vagina. Twilight moaned, loving the feel of your hands rubbing against her hypersensitive robotic flesh.
You sniggered, before giving her a light lick to the pulsing flesh above you. Twilight cried out, the walls of her marehood pressing a little tighter together.
With reckless, suicidal bravery you began humping your tiny cock against her G-Spot, along with rubbing and licking it. However, you soon stopped your ministrations when you saw the walls of her marehood began to rapidly close in all around you.
"I’m scared! Stop it!" you shouted in panic.
"Oh Anon, there’s no need to be scared," came her soft voice.
A vast swarm of nanomachines came down from the ceiling, covering you in a even thicker layer of armor.
"Do you feel safe now, sweetheart?" she asked in a concerned tone.
"Yeah, I feel safe," you said in a upbeat tone.
With that you went back to making love to her G-spot. You licked, humped, rubbed and kissed that special place of her’s.
Twilight cried out in pure bliss as her walls closed in all around you, her massive marehood tightly squeezing your tiny form in an iron grip. The nanomachines around your body protected you from the strength of her mighty robot pony pussy.
Kissing, licking, rubbing and humping; you did these things to her G-spot, driving the giant mare to squeal in joy from your tender affection. This was love between a mere tiny human and a giant robot pony bigger than your solar system.
The heat of her vagina, the softness of the flesh your cock humped against and the fact you were getting a giant robot pony off was becoming too much for you.
So, you soon uttered a cry of ecstasy as you came, thus staining a small portion of her insides with your cum upon her walls.
The moment you came a nearby swarm of nanomachines created a glowing purple rope, attaching you to her g-spot, just before Twilight unleashed a loud, lustful moan. There was a rumbling sound, just before a massive tidal wave of cum flowed out from her marehood into space, freezing almost instantaneously once out there.
Twilight's marehood gave your body some gentle squeezes before her walls retreated back.
"That was wonderful my sexy tiny germ," came her voice, low and blissful.
"Any time my big sexy robot pony," you said sexfully.
A large group of nanomachines descended from the ceiling, before forming together into the perfect shape and look of a much smaller Twilight, who was only slightly bigger than you.
"Want to have sex with an avatar of myself while inside me?" she said sensually as the smaller Twilight looked at you with bedroom eyes.
You gave her a nasty grin. "Of course, my big lovely robot horse."
The avatar of Twilight’s cheeks blushed bright red over your kind words.
The End
Author's Note
A romantic story about an average sized human and a giant robot pony bigger than a solar system.
