Love Powered OP Twilight

by Bendy

Rating: mature
Tags: Sex, Crossover, Alternate Universe, Human, Twilight Sparkle, My Little Pony: Friendship is Magic, Second Person, Comedy, Romance
Length: 4658

Your marefriend Twilight Sparkle becomes an alicorn. You, her human boyfriend make love to her soon after. Amazingly, it turns out the more you make love to her, the bigger and more powerful she becomes. The forces of evil don't stand a chance.

Your marefriend Twilight Sparkle becomes an alicorn. You, her human boyfriend make love to her soon after. Amazingly, it turns out the more you make love to her, the bigger and more powerful she becomes. The forces of evil don't stand a chance.

There is really nothing better than a good and sexy overpowered alicorn, that only grows bigger and more powerful by you making sweet love to her.

Published 2016-03-17 17:00:01 UTC
Last updated 2016-03-17 17:00:01 UTC

Growing Her Sparkles

Growing Her Sparkles

A harsh, icy wind from the northern Crystal Empire howled with vigor on this freezing lavender night in the middle of winter. Vast quantities of snow mercilessly poured down upon the lands of Equestria, covering it in a thick blanket of white.

In the sleepy little town known as Ponyville, everyone… everypony was safely tucked away under their blankets within their cosy homes. The alien ponies slept with ease on this dark and cold night, despite the noise of the screeching wind from outside.

This town in which the ponies lived in looked somewhat medieval, since all the houses were thatched. Yet, each house still had many modern appliances, such as; toilets, electricity and running water.

Each building was smothered in a thick layer of snow, slowly growing larger and larger as the blizzard ran through the night.

Near the center of town, there was a huge oak tree, which had many windows and balconies… and other details. just Like the rest in town, it too was covered in a thick blanket of snow.

The interior was so thick that literally a library was carved into the tree itself. Hundreds, upon hundreds of books were neatly lined along wooden shelves. The books were divided in perfect alphabetical order upon each shelf, and also divided by genre, author and age rating.

Upstairs, you, a human slept peacefully in a large double bed. The wind was remarkably quiet within here, just barely noticeable.

A thick blue blanket covered you, which was decorated with several stars and crescent moons. A telescope stood at a nearby window, sticking out said window into the night sky.

A heart attack cute unicorn lay next to you. Her coat was purple, she had beautiful, large, forward facing, expressive eyes that were nearly as big as basketballs, just like the rest of her species. And of course, a most delicious plump, fat backside. Ponies are well known for their nice fat butts after all.

You rested your head upon her shoulder, arms wrapped tightly around her waist, at the same time her lovely, plump rump was pressed against your crotch. This beautiful pony you were spooning provided all the heat and comfort you needed on this freezing cold night, for her body was pillowy soft and warm to the touch.

Both of you merely continued to sleep peacefully on this night. Nothing really eventful happened, other than you subconsciously thrusting your hips forward to lightly poke your hard member against her rump every so often, the mare uttered low moans each time you did this.

Until suddenly, sleeping Twilight involuntarily ended up teleporting with a flash of light. Once the light faded, she had found herself straddled atop you, along with her body glowing with blinding rainbow light.

You awoke with a start. "Twilight? What’s going on?!" You shouted in panic.

"I don’t know Anon!" She screamed, eyes rapidly darting from side to side.

You hissed in pain when the small unicorn abruptly expanded in size over you, towering into the air to grow to become just as big if not bigger than Princess Celestia.

Once she was fully grown the light faded away, leaving you with a six foot tall alicorn resting her huge backside right on top of your lap.

"G-get off you’re crushing me!" Came your low and weak voice, barely even being able to breathe from her massive weight on top of you.

With a sad sigh Twilight rolled to the side. Once her massive weight was off you, you coughed with a hand over your mouth.

You gasped in amazement, upon noticing a large pair of feathery wings upon her back.

"Tw-Twlight… you’ve become an alicorn." Came your low voice in awe, jaw dropping.

Twilight looked down sadly, a few tears falling down her cheeks. "Yes, that’s nice and everything. But I’m so big and fat now." She spoke in a low, sad voice.

You could not stand to see Twilight so upset, thus you reached your hand forward to bring it behind her neck, in order to give the sad alicorn a pet. Your hand roamed through her mane, her silky soft hair flowing through your fingers as you gave the mare a series of reassuring pets.

In response, the alicorn sighed contently, loving the feel of your hand petting her. You continued your petting, happy to see Twilight was cheered up. When you moved your hand to her ear to give it a gentle scratch with your fingers the alicorn mare made odd… purring sounds… like a cat.

Smiling, you brought a second hand to her other ear and gave the mare a series of nice scratches.

Now with both your hands massaging her ears Twilight had metaphorically melted from under your tender touch. The mare purred loudly as she leaned her head forward to give you a brief soft kiss on your lips, before pulling her head back to beam you a warm smile.

"Twilight, you are my marefriend and I love you with all my heart." You spoke softly, before your voice shifted into a low, sensual tone. "And now, if anything, I love you even more. For I love meat on my mare."

The look on Twilight's face was of utmost happiness, tears of joy fell down her cheeks over what you just said.

Suddenly, there came a flash of light, the next thing you knew you found Twilight lying atop you once again. However, while she was still a very heavy weight, you now could breathe perfectly fine and felt no pain whatsoever.

"Oh my gosh! Are you OK?" She shouted in panic, quickly lifting herself off you.

"Yeah, I didn’t feel any pain. Just that big sweet ass on top of me." You spoke nastily, finishing off your sentence with a hard slap upon her flank, causing Twilight to utter a lustful moan when her massive cheek slapped against the other one with a delightful squishy sound of flesh slapping against flesh.

Twilight giggled with a hoof over her mouth from your silly antics, before she sat herself back down upon you.

"So, what happened?" You asked, curious to know why this is even possible.

"Hmm." She said, rubbing her chin thoughtfully with a hoof. "It appears my alicorn powers responded positively to your affectionate pets and words." She leaned her head down to look upon you with bedroom eyes."So, do you want to test my new alicorn powers further with me?"

"Hell yeah!" You spoke in an excited voice.

So with that you quickly reached your hands around her to take hold of her massive rump, your hands just barely reaching her cutie marks upon her enormous flanks.

Like soft dough, the immensely thick layer of soft fat around her enormous cheeks was pushed back to your touch, sinking like memory foam as your hands dug in deeply into her lovely backside. To top it all off, the soft feel of her ass put the finest of silks to shame.

Twilight beamed happily down upon you, loving to feel your hands were holding the very place that made her the pony she was. A pony’s flanks was a special place, for there their cutie marks were.

Twilight shifted over you, pulling her body back. You shuddered at the feeling of her soft fur sliding across your bare skin. A nasty smirk came upon her face once her head was above your long and thick member. The rounded thick tip was magically painted with an insignia of her starry cutie mark.

Your cock twitched excitedly in anticipation, followed shortly by the cutie mark marking upon your tip glowing with purple light, before your cock rose by several inches higher into the air and thickened outward by a good few inches.

So with that, Twilight placed her hooves upon each side of your lap, gently massaging your hefty sack with her soft hooves. Once her hooves were in place, she took a deep breath, opening her mouth wide, before leaning her head down to wrap her soft, plump lips around your thick tip.

You took a strong hold of the bed sheets beneath you when you felt Twilight bob her head up and down your tip, topped off with her soft, long, thick alicorn tongue giving your very tip a series of playful licks.

Your head fell back, uttering moans of pure bliss as the alicorn lovingly tended to your cock.

A low giggle escape from her, before she proceeded onward to slowly make her way down your long shaft. Inch by glorious inch her head lowered, taking more and more of your cock into her maw, her throat bulged out as your cock went deeper and deeper inside.

Your legs trembled violently, over the wonderful feeling of your cock slowly, but surely being smothered by a soft, warm, wet alicorn muzzle. Her long swan like neck helped her greatly in this task, she didn’t even gag at all as she continued to take more and more of you inside.

A happy sigh you uttered when Twilight's lips finally met your base, gently kissing off your hefty balls. Her muzzle there held a most amazing, unbelievably soft hold over your shaft.

A nasty smirk came from the corner of her mouth, before she slowly lifted her head, sliding her soft lips all long your member as she did so. A frustrated groan left you when Twilight's mouth departed from your member with a loud pop.

However, before you could voice your annoyance, the alicorn lunged her head downward, taking your thick cock all the way inside her lovely mouth, causing you to moan in delight.

The mare began to moan aloud around her mouthful, rapidly bobbing her head up and down your shaft. Her lovely muzzle gently suckled your shaft like a lollipop, along with her large tongue showering your cock with loving affection, by giving a series of gentle licks here and there all across your shaft.

Her soft, warm mouth smothered your cock with her saliva, topped off with that wonderful tongue of her’s oh-so gently licking your cock all over from inside her mouth. All this was breaking down your defences rapidly, like when a hole in your wall is open and your enemy is Goth, who spams hordes of Huskarls into your base.

So with that, you reached your hand forward to give her a light pat upon her forehead. The mare took the hint, thus began to slowly lift her head off your member, before releasing it with a loud pop.

A happy smile came upon her face, due to her seeing your member was slick with her saliva. With your cock now well lubricated for the task at hand the mare shifted over you, aligning your cock with her vagina.

Twilight bit her lower lip, before slowly lowering herself to take your thick tip inside. Once inside, your hands found their way to her massive flanks, squeezing the pillowy soft flesh between your fingers as you deeply pushed back the thick layer of her squishy soft fat around her cutie marks.

Inch by inch she took your long and thick member inside her alicorn marehood, all the while her hot, soft walls of her vagina tightly squeezed your magically extended cock, her slick insides milking you for all you were worth. Her dripping wet marehood made your cock even more lubricated for the job as it slowly went deeper and deeper inside.

Both of you uttered a happy sigh when your cock came to kiss her deepest barrier. Twilight leaned forward to give a brief soft kiss upon your lips, before pulling her head back to begin lightly bouncing her rump on your lap.

You closed your eyes, before you humped upward to meet her in time with her bounces. Your hands held a firm grip upon her massive backside, the delightful, oh-so soft flesh of her ass felt wonderful to hold and squeeze.

However…. something rather odd began to happen. Your hands upon her rump soon found it harder and harder to maintain their grip… it seemed as if they were being pushed away.

Until finally your hands were merely holding her lower back. Confused on why this is happening, you decided to open your eyes.

Once your eyes were open, you gasped in shock at the sight before you.

Twilight, with her eyes closed moaned aloud while lost in a sea of sexual euphoria, while simultaneously she became taller and taller over you, towering into the air as she literally rose an inch higher every time her hips collided with yours. In addition to her rump and overall body was growing larger and larger in size.

This drove you crazy with lust, thus you humped upward like a madman, which only served to help her grow bigger at a faster rate. Her alicorn marehood still held the tight, snug feeling over your shaft, due to her magical alicorn body growing your cock taller and thicker inside her as she grew in size.

On and on her body expanded, you soon became lost in a world of darkness when her rump soon swelled in size to the point your entire body was smothered by soft purple flesh. Said flesh depressing deeply as it folded around your body, all the while her ever growing butt repeatedly bounced atop you. In addition, you still somehow could breathe perfectly fine from under her giant butt.

You wondered why you have not yet been swallowed by her surely growing vagina, leading you to a crazy theory there was a portal dividing your body in half. So no matter how big she got your head will always have a place upon her butt, yet at the same time always be able to reach her vagina.

The soft, tight feeling of her marehood squeezing your shaft, the wonderful feeling of her giant, bouncy castle rump repeatedly colliding with your body was becoming too much. You tried to warn Twilight, but all you could do was make a mumbling sound, for your face was smothered by growing alicorn booty flesh.

So with that you came inside, with each thrust of your hips you sent forth spurt after spurt of your creamy human spunk deep into her marehood above you.

Twilight moaned loudly, her marehood sending forth thick waves of her alicorn marecum all over your body. A mix of both yours and her love cream spilled out of her marehood, splashing against your body like the tide coming in.

Somehow, you were still able to breathe from being under ‘cum water’.

’How is this possible?’ came your thoughts.

’Magic.’ Answered Twilight’s voice in your head, telepathically speaking to you.

’Sounds good enough for me.’ Was your reply.

When your final blast of seed shot into her marehood, her whole body violently expanded in size. Her flanks quickly sped across the room, sending the telescope flying out the window when her flanks thickened out to the point they smacked hard against it. Her cheeks had now become so massive they strained against the very walls of her room, struggling to contain her growing butt.

However, her growth came to a halt once she stopped bouncing on top of you.

"Hah, I’ve gotten pretty big haven’t I Anon?" She said in a most joyful tone.

"Mmmmmhhhhhh..." Was all you could say from being under her giant ass.

"Thank you Anon. It was all thanks to your love. The magic of human and pony love." She spoke softly.

In answer your cock reharden, growing by several inches, balls swelling larger in size as they refilled with seed, readying up to fill her with more cum to make this alicorn even bigger atop you.

"I don’t want to destroy my library, so I’m going somewhere I can safely grow in size without destroying anything or hurting anyone."

With that her horn became surrounded in a purple aura, followed shortly by you and her teleporting away with a flash of light.

‘So… where have you taken me?’ Came your thoughts.

’Oh the moon, there I can safely grow in size without hurting anyone. After all the moon is devoid of life.’ Spoke her voice in your head, before shifting into a sensual tone. ’Enough talk now my sexy little human. I want you to fuck me to make me bigger and more powerful!’

You complied, humping upward into her love tunnel. Twilight craned her neck back to unleash a lustful moan when she once again began to grow in size. The growing alicorn mare soon returned the favor by bouncing her massive rump over you.

Up and up Twilight rose, higher and higher into the air. Her butt repeatedly slammed down upon you, while it did not hurt you one bit it left an imprint of her backside upon the moon’s surface, flattening it like a pancake.

Her flanks rapidly expanded ever outward, becoming so large to the point they started to cause small earthquakes.

You uttered a low groan, overwhelmed with pleasure as you blasted massive quantities of your cum into her.

Your cum powered up her new alicorn powers, Twilight crying out in pure bliss as her body exploded in size to the point it would make Mount Everest blush. Like a loyal soldier, your cock quickly rehardened and balls refilled with seed, ready once again to make Twilight bigger and more powerful.

So with that you resumed thrusting upward, somehow being able to lift up her humongous, growing butt a few inches off the ground.

With a loud moan Twilight began grinding her rump against your tiny form, gently rubbing her soft flesh all over your body. Your hands reached upwards, groaning in delight over the feeling of her soft fat rolling across your hands like water.

You began to shudder in bliss, as the giant alicorn continued to rub her gargantuan rump all over your body, said rump only getting bigger and bigger by the second.

Your cock twitched, before you came into her once again, filling her marehood with massive amounts of cum.

Twilight moaned aloud as she had her biggest growth spurt yet. Her colossal flanks spread across the surface of the moon like a tidal wave, flattening mountains under trillions of tons worth of alicorn booty flesh. Topped off with tidal waves of yours and her cum rolling across the planet, staining its crust in a thick coating of white.

Overwhelmed with pleasure, your shaft fired into her marehood once again, filling it with even more cum. Twilight’s body had not even finished her previous growth spurt… so she exploded in size…. to become several times the size of the moon itself in a matter of seconds.

So gigantic she had become the moon’s and Equis’ gravity began to distort. Twilight gasped in shock, before quickly fixing the issue with a simple flick of her magic.

Down in Equestria many ponies looked up to the moon with telescopes, whilst masturbating over the amazing sight of a giant, growing sexy alicorn. One pony of which was a dark blue alicorn, who of all the ponies watching seemed the most happy at the sight.

Suddenly Twilight’s alicorn ears perked curiously, hearing sounds light years away. The sounds were not pleasant sounds, they were the sounds of screams of terror, explosions and the monstrous roars of machines.

So with that Twilight used her magic to see far across the galaxy. What she saw made her gasp in horror with a hoof over her mouth.

Horrible killing machines, in the form of massive, mechanical, grey cuttlefish like starships made death stalk the galaxy, blasting thick red laser beams, which destroyed everything in their wake. Vast hordes of blue eyed, cybernetic abominations were the ground forces. The sapient alien species across the galaxy were forced to take up arms against their former kind.

"Anon… we have big bullies to stop!" Boomed the giant alicorn atop you.

You sighed sadly when you felt your cock rapidly shrink down to a more modest size. Before you could utter a word, there came a blinding flash of light and the next thing you knew you had found yourself in a dark, wet, hot place. The tight walls of which gently hugged your body all over.

"Uh…. where am I?" You spoke in a most bewildered tone.

"You are inside my vagina, right in front of my g-spot. You’ll be safe in there while you power me up to fight the Reapers."

"I’m on it ma'am!" You shouted, giving her a salute.

With that you began to hump your cock against her G-Spot, as well as rubbing and licking it. Twilight moaned loudly as her body once again began to grow in size.

With you now safe inside her magically shielded vagina Twilight gave her enormous wings an experimental flap, before her body became little more than a purplish blur as she flew through space at tremendous speed.

A vast fleet of Reapers were taken completely off guard when a roaring in rage giant Twilight plowed through them, creating a massive hole in the fleet as she hit into them like a bowling ball, smashing their bodies into tiny pieces.

Twilight turned to face the surviving Reapers with a death glare. The Reapers roared in rage, blasting her body with thick red laser beams…. the laser beams…. had no effect on her whatsoever.

Twilight moaned in bliss as you, her tiny human lover came upon her G-Spot from inside, coating a small area within her marehood with your cum. This soon followed with tidal waves of cum blasting out from her pussy into space, freezing instantaneously within the coldness of space. Luckily her magic held you in place to keep you safe within her.

The Reapers began to back away in fear, seeing the giant equine grow in size before them.

Twilight roared in rage, before incinerating almost the entire Reaper fleet with a single blast of enormous rainbow lasers firing out from her eyes.

The few remaining Reapers turned tail and flew away as fast as they could. Unfortunately, Twilight was far faster, easily catching up to them to crush them into dust between her giant hooves.

In the space of less than an hour, all the remaining Reapers fled the galaxy into dark space. But the giant purple pony now the size of a gas giant gave chase, hunting them down and killing them all without mercy.

The last Reaper with glowing yellow eyes turned to face her in defiance.

"I am Harbinger! You can’t defeat m--" he spoke before being crushed into dust between her massive hooves.

"No more xenocides for you!" She boomed in rage.

Twilight smiled, seeing her task was done. At long last the Reapers were finally defeated. However, her ears perked curiously when she heard you utter a sad sigh inside her vagina.

"I love the big new you, but I still miss the little unicorn I fell in love with." Came your voice, low and sad.

With a flash of purple light… another much smaller, wingless unicorn Twilight appeared upon your lap, who was the same size as the one you were spooning earlier.

"I’m sorry Anon!" The small Twilight shouted, wrapping her hooves around your neck. "I was just so busy killing Reapers I hadn’t much time to pay attention to you."

"It’s OK, Twilight." You said softly, reaching your hand out to give the unicorn's mane a pet. "One question, are you a clone or--

"No, I’m still Twilight. This is a magical avatar of myself, which is magically linked to my brain."

"Twilight… you are the greatest girl a guy could ever ask for. You are a giant alicorn, who loves a mere tiny human like me. I love you Twilight Sparkle, forever and ever and to the end of time." You spoke softy, wrapping your arms around her.

"I love you too Anon!" She screamed in happiness, before pressing her lips against yours.

As both human and unicorn kissed passionately within her vagina tears of joy fell down the giant alicorn’s cheeks.

You stared into the eyes of the small pony you fell in love with, while at the same time you gently aligned your member with her marehood, before pushing your cock into her wanton depths

The moment your tip kissed Twilight's deepest barrier of the smaller avatar of herself, the giant alicorn rapidly expanded in size faster than ever before.

Her cutie marks glowed with blinding light, love hearts flashing over her eyes whilst... the... giant... alicorn… grew… bigger... than...the.. whole... galaxy… in... a... matter ...of … seconds...

Twilight cried out in pure bliss, your love making mixed with your loving words caused her body to swell into astronomical size. Her body grew and grew, quickly becoming bigger than the galaxy in mere seconds.

Twilight’s horn flashed with purple light to cast a magical protection charm upon the nearby galaxy, in order to make sure her rapidly growing body doesn’t accidentally destroy it.

Twilight wanted to grow bigger and more powerful forever and ever with you. Her brow furrowed, fearing that she one day will become bigger than the universe.

"Well, it’s time to go to the multiverse!" She boomed.

With a flash of her horn Twilight teleported out of the universe with a blinding flash of light into the multiverse.

Twilight groaned in frustration, seeing how dark it was here and how the countless transparent spheres all around were not only far bigger than her and were in such in a disorganized mess.

If was like as if some guy lazily kicked a trashcan over and left it, the mess only getting worse and worse by each new universe popping into existence. Each universe was filled with stars, planets and everything that makes up a universe.

"I believe in you Twilight. I love you my big and sexy mare. You are the smartest, most sexy pony in all existence." Came your voice in her head.

Twilight moaned aloud, growing several times larger than a universe in only one second. In a manner of seconds, the universes around became mere marbles in comparison to her supermassive body.

With a flash of her horn she… instantly put every single universe across the multiverse into perfect alphabetical order upon a massive, ‘wooden’... wood like bookshelf. Once done, she placed a magical charm protection upon the shelf, to make sure she didn't accidentally destroy it by growing her body.

Every new universe which popped into existence was placed upon the shelf into their respected areas.

Free to grow without end you and Twilight made love forever and ever. Of course you and a small avatar of herself would take breaks, visiting friends, playing video games, reading books together and stuff.

Twilight at some point became so large she had to ‘increase’ the size of the multiverse just to contain her rapidly growing form.

The magic of friendship rained across the whole multiverse. Twilight's powers became so powerful she was able to stop the end of any universe from happening. Twilight sent avatars of herself all across the multiverse to fight the forces of evil. The only thing the evil people did to hurt her was by calling her a ‘Mary Sue’.

It saddened Twilight no matter how big and powerful she got, she still could not open a portal into another multiverse. Some strange being she could not see was not allowing her to reach into other multiverses. Not only that said being kept calling her nasty names.

"Stay where you are overpowered mary sue." Spoke the being in a deep, cold voice.

"Hey! I’m not a mary sue! I’m a… ummmm… uhhhh…. shut up!" She shouted angrily at the invisible being.

"Don’t listen to him Twilight, he’s just jealous." You spoke softly.

Twilight moaned aloud, becoming even bigger and more powerful once more.

The End