Massive Midnight

by MassDriver

Rating: mature
Tags: Midnight Sparkle, Twilight Sparkle, Fetish, Equestria Girls, Sex, Flash Sentry
Length: 5801

Midnight Sparkle, out to satisfy Twilight's suppressed desires, pays a nighttime visit to Flash Sentry.

Midnight Sparkle doesn't really believe in "good" and "evil." She seeks power.

But she's aware that, over the last few months, she's basically stopped being "evil." She's still at work in Twilight's psyche, pushing the bookish girl to accumulate knowledge and power, and attain all that she desires. Lately, the shy girl has been struggling with some buried sexual desires... so Midnight sets out to fulfill them.

Midnight seeks Flash Sentry in the dreamscape, where lovemaking has no limits. She grows immense, becoming a hulking amazon with a gigantic cock, and gives Flash Sentry a night that he'll never forget...

Contains: Futa, Hyper sizes, Female Muscle, Tentacles, Unbirthing, Breastfeeding, Cum Inflation

Published 2020-11-30 21:10:01 UTC
Last updated 2020-11-30 21:10:01 UTC

Chapter 1

Twilight Sparkle lay on her side, staring at the framed photo on her bedside table. Most of the photos in her room were of her and the other Rainbooms, but she kept this one closest to her bed.

It was a photo of Twilight and Flash Sentry, from the school’s camping trip. It didn’t record anything especially noteworthy; at some point during the first day of camp, Pinkie Pie help up her phone and instructed Twilight and Flash to pose. The two of them had hastily posed together, and Flash had put his arm around Twilight’s shoulder.

And Twilight, in the months since that day, hadn’t gotten over that moment. When she looked at that picture, she felt the warmth and weight of his arm - the strength of his lean, athletic muscle, the firm but gentle embrace.

He was just posing with her. It didn’t mean anything. And things between them hadn’t progressed further in the months since then. But when she looked at this picture, these feelings began to emerge: her fingers crept into her pajamas, down past her furry purple bush to her slick pink lips…

She stopped. It felt wrong to touch herself like this, when she didn’t even know how he felt about her. Frustrated with herself, she turned off her bedside lamp and rolled onto her back. She was horny, but she was also tired - so it didn’t take long for her to fall asleep. As she drifted off, the feelings in her womanhood grew stronger; it was almost as if, as part of her was falling asleep, another part of her was waking up…

In fact that was precisely what was happening, in a far more literal way than Twilight realized. She hadn’t been troubled by her “other self” for some time, and she was starting to suspect she’d suppressed Midnight Sparkle for good.

In fact, Midnight had just been laying low. As Twilight’s friendships had grown stronger, Midnight felt less and less of the isolation and anger that had driven her to evil. Midnight’s purpose was to make sure Twilight Sparkle got everything she desired - and lately, the list for power and control had given way to a different set of desires. And the arousal in Twilight’s pussy was just what Midnight needed to awaken.

Twilight’s slumbering body began to stretch - her slender limbs grew longer, her torso broader. Black feathery wings sprouted from her back, and hair darkened from the roots upward, and an ethereal horn made of swirling light grew from her forehead. Her pajamas split open, tearing from top to bottom and falling in shreds onto her bed. The bedframe cracked and broke beneath her weight. Her body softly groaned as every muscle grew larger and more powerful - and soon the slim girl had become a fifteen-foot-tall Amazon, her thighs dangling off the foot of her bed.

And she wasn’t done growing. Her height stopped at fifteen feet, but her muscles kept developing. In a matter of seconds, she put on quantities of muscle that one would normally get from years of intense bodybuilding. Her thighs were three times as thick as her waist had once been, her biceps bigger than her head. Mass was growing out of nowhere, swelling and shifting under the skin, turning the frail, bookish girl into the strongest human who had even lived.

And when Twilight had a perfect physique, the absolute apex of what a human could reach… she kept growing. Her limbs packed on more layers of muscle, groaning as they expanded. Her shoulders broadened, her torso thickened, her abs became even more solid and perfectly defined. Her breasts were just as immense as her muscles; atop her powerful frame sat a perfectly round and firm set of H-cups. She couldn’t be mistaken for a normal girl anymore; her physique was truly godlike now. In her sleep, Twilight Sparkle had grown into a goddess of absolute power.

Twilight slept, but Midnight Sparkle opened her eyes. “Finally,” she sighed. “Poor Twilight can’t even touch herself without curling up in shame. If she’s going to attain mastery of all magic, she needs a little fucking confidence. I’ll just take care of this for her, and her body will remember.”

Midnight Sparkle slipped her hands down between her firm purple thighs and touched her fingers to her womanhood. She shivered, and gasped, and slid her fingertips deeper…

“Wait a minute,” said Midnight. “What the hell am I doing?” She withdrew her fingers from her pussy and stood up from the bed, hunching over to avoid slamming her head into the ceiling.

“Now I know I’m turning into a nerd,” laughed Midnight. “I’m a being of pure desire and near-limitless power, and I was about to just... masturbate? I can do better than that.”

She looked down at the photo of Flash Sentry on Twilight’s bedside table. “An in-person visit would be…” Midnight sighed, “...irresponsible. But that doesn’t mean I can’t drop by.”

Twilight waved her arm, moving her hand like a paintbrush over the empty air. A swirl of darkness followed her fingertips, becoming a shapeless shadow that stretched from the floor to the ceiling: a doorway, which Midnight could use to physically enter the dreaming world. She left herself fall forward into it, bellyflopping into the dreamworld with the entirety of her colossal body.

The world of dreams was a disorienting place - dark and empty, swirling with vague shapes and dim colors. The sort of place where you could lose your way and wander forever.

Of course, Midnight Sparkle had no intention of wandering. Her desire, like her limitless magic and her godlike body, was powerful - and when she projected her desire into the darkness, the void answered her. What she desired was Flash Sentry, and his dream came to her, rising like smoke and coalescing into a wide, round portal.

It looked as though Flash Sentry was dreaming about school; his dream looked just like the hallways of Canterlot High. If Midnight looked closely, she was sure she’d find that small details were out of place… but she wasn’t interested in small details. She stepped through the portal, emerging into Flash Sentry’s dream, and scanned the hallways for him.

She didn’t see Flash anywhere - just the vague shapes of other students passing her by. Some of them resembled specific people - there was a blue girl who was probably meant to be Trixie - but they were faceless and indistinct. Only the dreamer would truly be real in this world.

Watching the students pass by, Midnight Sparkle realized that - unlike them - she was nude. “Ooh, I should try and fit in a little better,” she said to herself, and manifested a “school uniform” on her body. Canterlot High didn’t have uniforms, of course, but she felt like a short plaid skirt and a white blazer with the school crest got the idea across. She looked down at herself, and chuckled at the contrast: a cute school uniform, fitted to the body of a fifteen-foot-tall muscle goddess.

It wasn’t difficult to figure out where Flash was; in every direction but one, the dream grew blurry and formless. In the direction of a nearby classroom, it became sharper and more distinct. Midnight walked to the doorway, her weight cracking the tile floor with each step, and stopped in front of the door. There was no way Midnight could fit her body through that little door; she could either use her power of the dream to increase the size of the door, or…

Flash Sentry, anxiously re-reading the pop quiz on the desk in front of him, turned in his seat as he heard a deafening crash from behind him. Something had smashed through the classroom’s wall, punching a ten-foot-wide hole in the brick. And through that hole stepped something huge - a hulking purple figure with immense muscles… and enormous breasts… and a short skirt that barely covered a wide round bottom…

“Sorry I’m late, teacher!” said the enormous girl, in the voice of Twilight Sparkle. She took a seat next to Flash Sentry, in a chair that miraculously bore the weight of her body. “I’m ready to take the test!”

Flash stared at the girl who seemed to be Twilight Sparkle. She was gigantic, swollen with powerful muscle and towering over everyone around her. She had a horn made of white light growing from her forehead, and black wings on her upper back. But she was Twilight Sparkle, surely; her skin was the same shade of purple, her voice was the same as always, and she had the same beautiful face…

While Flash surveyed Midnight Sparkle’s huge, powerful thighs, Midnight was looking back at him - and when he looked up, he finally met her eyes. Midnight just smirked, giggled, and turned back to her desk.

Flash did the same. He tapped his mechanical pencil against the paper on his desk, unable to properly focus on the test. Focusing would have been impossible in any case, because this was a stress dream and the test was nonsensical - but it was extra hard to do it right now, because he couldn’t stop thinking about the huge, immensely powerful girl sitting next to him. His eyes kept drifting towards the place where her short skirt ended…

And while he was watching, he saw Midnight’s skirt begin to stir. Something was moving underneath her skirt, between her legs - something big and stiff that lifted the plaid fabric and crept forward, inch by inch. Finally it pushed past the hem of her skirt, and Flash saw it: a huge, lumpy bulge that pushed her thighs apart as it grew. It was wrapped in tight white panties, but the fabric was stretched so thin that the purple of Midnight’s skin was showing through from beneath. The shape of the bulge was very clear as well: two fat spheres, and a straightening shaft that was covered in thick veins. The musclebound girl had a dick, and it was getting bigger and harder.

Midnight didn’t appear to notice, though. She appeared to be focused on her test, even as her stiffening cock grew too large for her panties and burst through them. Her penis - a good two feet long and still growing - rose higher, the dark purple head dripping with gleaming precum.

Eventually Midnight seemed to become aware of her own massive boner. She squirmed in her seat, reached down to shift her balls into a more comfortable position, and idly rubbed the shaft of her cock. Finally, she could no longer ignore her arousal. She raised her hand, and called out “Teacher? Flash Sentry’s looking at my body and it’s making me really horny! Now my dick’s all big and hard and I can’t focus on the test. Can Flash and I take a break from the test so I can fuck him?”

Flash froze up, anticipating some kind of humiliation. He’d been called out for staring at Midnight Sparkle’s huge, thick, powerful cock, and now everyone in class knew - but there was no laughter, no reproachment. It was as though all this was totally normal.

“Well, you heard the teacher!” said Midnight as she rose from her seat - although Flash wasn’t sure the teacher had said anything. “Let’s go, Flash. How about we fuck in your bedroom?”

Midnight stride past Flash, her stiff dick bobbing and her nutsack swinging with each step. She slammed the palm of one hand into the side of the classroom, and a section of the wall collapsed from the impact. Beyond the wall, Flash saw his bedroom. Unmistakably his bedroom, although the ceiling looked taller and the bed looked a lot wider than normal.

And, of course, Flash Sentry’s bedroom wasn’t typically adjacent to any of the classrooms in Canterlot High. But his mind couldn’t quite put together how strange all this was; he was still dreaming, and the critical faculties of his mind were all but absent.

Midnight Sparkle stepped through the hole she’d made, and beckoned Flash Sentry to follow her. Flash stood up from his desk and walked through the hole in the wall, and Midnight Sparkle retreated further into the bedroom, setting her considerable weight down on Flash’s bed. Miraculously, the bed didn’t break under the literal ton of muscle that was Midnight.

“Well, you’ve finally got me in your bedroom,” said Midnight Sparkle, running her hands up and down the length of her three-foot cock. “Is there something you’ve always dreamed of doing with the shy, bookish girl you’ve been crushing on?” She parted her thighs and leaned back, giving Flash a better look at her big purple nutsack and her upright cock. “Maybe you wanted to caress my massive muscles? Kiss my big fat balls? Or worship my long, hard dick?” She touched her fingers to the tip of her cock, retrieved a drop of pre, and placed it on her tongue. “Maybe you’d like me to split your butt open with my girthy, meaty girlcock?”

“I, uh…” Flash trembled, feeling the uncomfortable stiffness of his own dick. The truth was, he did like what he was seeing. He’d had a crush on Twilight, the way she normally was… but he was even more drawn to the way she looked now. That much strength, concentrated in a single enormous body, was intensely alluring. And those nuts, each one easily twice the size of his head, swollen with cum. Flash wanted to taste it… feel it on his skin… he wanted to get filled with it…

And yet, none of this felt quite right. “Twilight,” he said, “what’s going on?”

Midnight laughed. “I guess I should let you know what’s up before I fuck you,” she said. “You’re dreaming, Flash.”

Flash felt his head starting to clear. He was dreaming? That would explain why things were so strange. “Okay,” he said. “I guess my dreams aren’t usually this vivid. And I’ve never dreamed about you looking like… this…”

“But you like it, right?” asked Midnight, running her hands lasciviously over the surface of her dick. “Don’t you want to climb onto my huge body… feel my muscles… and ride my cock? I can see how hard your cute little dick is, Flash. No point denying it.”

“Well…” said Flash nervously, “I guess there’s not much reason to deny it, if this is just a dream. I mean, you’re not even real, so-“

Midnight’s horn flared, and Flash felt two disembodied hands grasping his butt. The hands pushed him forward, groping and squeezing his cheeks as they slid him across the bedroom floor. “Who says I’m not real, Flash?” said Midnight. “Come on over here and you can feel for yourself how real I am.”

Midnight sat up on the bed. Her nutsack dangled over the side, resting on the floor, and her cock stood straight up - and Flash was sliding right towards it. More magical hands, made of purple light, appeared around him - and began to strip him down. Two hands pulled his shirt over his head, two more took care of his shoes and socks, and another pair stripped away his jeans and his boxers. He was naked, his stiff cock pointing forward as the groping hands shoved him forward.

“You know Twilight Sparkle is magical, right?” said Midnight. “But you don’t know how magical she is. You don’t know how powerful she is.”

Flash, pushed forward by the invisible hands groping his ass, finally made contact with Midnight’s massive junk. His knees rested on her nuts, and his face and chest were pressed flat against the underside of her hard, musky cock.

“Feel that?” said Midnight. “That’s Twilight Sparkle’s power you’re feeling. She holds herself back, but I’m the part of her that embraces all of her power. You can call me Midnight. And I’m real.”

She wrapped one giant hand around Flash’s back and began to rub his body against her shaft. “I have the power to walk into dreams, Flash. I came here because Twilight was all horned up for you. Here in your dream it’s easy to read your desires, so I know you like her too… and I also knowyou like it when girls have massive dicks. I grew a big, hard girlcock for you, Flash. Do you like it?”

Midnight lifted Flash higher, so that his face was pressed against the drooling head of her cock. “Please say you like my massive meaty girlcock, Flash. You know how shy I am… if I showed my huge veiny rod to my crush and he said he didn’t like it, I’d never get over it!”

“Uh… no, I definitely like it,” said Flash, as Midnight’s precum dribbled down his lips. He couldn’t help but taste its salty sweetness.

“Of course you like it,” said Midnight confidently. “I know everything you like, Flash Sentry. Or at least, I can tell what you’re thinking about right now…” She laughed. “Oh, Flash, you could have just told me you wanted a huge, hung girl to make you her cute little sex toy! We could have been doing this every night! Ooh, you are cute… but you’d be even cuter if I were bigger. How about you lick my big cock, and we’ll see if something… happens…”

Flash dove right in, licking at the deep purple head of Midnight’s cock, lapping up each mouthful of precum as it flowed from her tip. “Oooh, that feels good,” sighed Midnight. “Oh yeah… little Flash, you love licking my big cock, don’t you? You can’t get enough of my big… huge… ooh…”

Midnight moaned, and her body groaned all over. Her muscles were expanding, her breasts swelling, and her cock was growing thicker, longer, and harder. She’d made Flash’s bedroom bigger than normal, in order to accommodate her immense size… but now her head cracked the ceiling. As her body threatened to outgrow the room, she reached out to the malleable substance of the dreaming world and pushed the walls out a little further, giving herself room to grow.

“Ooh, this is good, Flash,” moaned Midnight. “The way you’re touching me… it’s making me so big.” Her spurts of precum grew stronger, coating Flash’s face with the thick fluid. “You make me feel so strong when you kiss my cock and drink my cum, Flash. And the stronger I feel, the bigger and more powerful I get… I wanna see how big you can make me.”

She ground her cock into Flash, feeling him grow smaller by the second as her body expanded. Her cock was four feet long now, her tits so big they were beginning to endgulf her cockhead - and Flash Sentry’s head along with it. Flash was swallowing so much precum that he barely had time to breather - which would have been an actual problem if he weren’t dreaming.

“Hmm, there’s just one problem,” said Midnight. “You’re making my cock so big, I don’t know how I’m going to get it inside your asshole. You’re so little, Flash, and my cock is so massive… I’m going to have to loosen you up.”

Midnight kept one hand against Flash’s back, and cupped his bare ass with the other one. Gradually, Flash felt her fingers start to wiggle… and lengthen… and begin to creep into his asscrack.

“Woah, woah,” sputtered Flash, through a mouthful of precum, “What’s going on?”

“Oh, relax!” said Midnight. “Seriously, this’ll go a lot better if you relax. I just turned my hand into a squirmy mass of tentacles to wriggle up your butthole! It’s a nice easy way to loosen up a guy’s butthole - we’ll start with one…” She poked a tentacle into his pucker, making him yelp. “I’ll wiggle it around a little… I’ll go deeper and touch you on the inside… then I’ll start slipping the others in. Pretty soon you’ll be loose enough to take my whole cock, no matter how big I get!”

“Hey… Th-that one tentacle is pretty big already,” groaned Flash. The tentacle inside him was thicker than his own cock - and the deeper it went, the girthier it got. “I don’t know if I can loosen up more than this…”

“What are you worried about?” cackled Midnight. “This is a dream, Flash. Anything’s possible! Your cute butt can stretch as wide as I need it to. See?’

She shoved another purple tentacle into his butthole, stretching his sphincter twice as wide. Outside of a dream, this would have wrecked him… but his asshole took it just fine. He did spend a moment howling from the sheer physical shock of it, but once the pain subsided he was back to moaning with pleasure.

“See?” said Midnight. “I’m going to make you feel better than you ever imagined you could feel, Flash Sentry.” She laughed, and a third tentacle wiggled slowly into Flash’s asshole. “You’re gonna wake up with some very sticky undies tomorrow morning. And as for me… well, you’re going to cum very hard, Flash, but with a cock this big… well, you’d better believe I’m going to cum about a thousand times harder. And I’m gonna cum right in your ass, Flash, just as soon as I get you loose enough.” A fourth tentacle snuck into Flash’s asshole, and he shuddered and came as the wriggling appendages explored him.

“Ooh, that cute little dick shot a cute little load!” said Midnight. “Don’t worry, Flash, I can make you cum as many times as I want you to. In case you haven’t noticed…” She rammed the fifth and final tentacle up Flash’s asshole, “...I’m very powerful.”

She let her tentacles play around inside of Flash, flexing and exploring his butt. “You think you’re about ready for my cock, Flash?” she asked. “You’re good and wide, but… gosh, I don’t know… my dick is just so thick and massive, you still might not be ready…”

Flash couldn’t really speak - he just moaned wordlessly as Midnight's tentacles probed him. He was hugging her cock with both arms, feeling it gradually grow thicker, still drinking her precum as it came spurting out of her tip. He made anxious-sounding noises, which made Midnight smile; he wasn’t sure he was ready for her cock.

Good. Midnight Sparkle wasn’t evil anymore, but there was something very satisfying about scaring someone. She liked Flash Sentry - of course she did - but it felt very good to know that he was frightened of her cock.

With her tentacles still inside him, Midnight lifted Flash up to the head of her cock and rested his bottom on the fat purple head. He reflexively supported himself on her breasts, which were each bigger than his entire body and firm enough to support his weight easily. “Hmm,” muttered Midnight, “Maybe you need a little pick-me-up before I start fucking you. Do you like milk?”

“Ah… uh-huh,” Flash managed to say.

“Good!” said Midnight. “Would it surprise you to learn that my boobs produce the most delicious and nutritious milk in the world?” She squeezed her left breast, making a trickle of milk flow from her nipple. “No, of course that’s not surprising. I’m a huge, powerful goddess and every inch of my body is divine. It’s only natural that my milk would be the best.”

“So drink up,” she said. She shifted his body so that he was slumped over her right breast, and brought the nipple of her left breast to his mouth. Milk squirted onto his closed lips, running down his chin, before he opened his mouth and latched on. He had to open his mouth wide before he could get it around the tip of Midnight’a nipple, but soon he started sucking and his mouth filled with warm, fresh milk.

“There you go,” said Midnight, resting her hand on Flash Sentry’s back to ensure his mouth stayed on her nipple. “Drink up, Flash. It’ll make you big and strong.”

While Flash drank, Midnight groaned with delight. “Oof, this feels good,” she sighed. “I think this might make me big and strong…” Sure enough, Midnight felt herself growing again; her ass grew so wide that it totally buried Flash Sentry’s bed, her height climbed to twenty-five feet, and her cock stretched to five feet. Her dick’s girth was massive, nearly as thick as her colossal biceps. And the tentacles at the end of one arm grew even thicker, stretching Flash’s asshole wider.

He would have cried out in shock, but his mouth was full of milk and he couldn’t stop drinking. He’d swallowed gallons of Midnight’s milk straight from the nipple, and he was still thirsty for more. Her milk was delicious, filling, just a little bit sweet - and even with five girthy tentacles in his ass, the milk soothed his mind and body.

“All right, Flash,” said Midnight. “You’re loosened up, you’re fortified… I think you’re ready to take a pounding from the most powerful girl in the cosmos. You’re ready to feel a goddess’ massive scepter in your tight little asshole. And I know you want to feel that rush of hot, thick cum… deep inside you…”

Midnight withdrew her tentacles from Flash’s asshole, pulled his mouth off her nipple, and grasped both his shoulders. This handsome, athletic boy looked so small now; her fingers covered his entire torso. In the real world, this fragile human body would need a lot more than breast milk and tentacle foreplay to prepare it to get fucked by a five-foot ramrod. But here in a dream, Midnight Sparkle needed only the tiniest fraction of her power to maintain total control. Anything she desired was hers, effortlessly - and what she wanted right now was to split this boy’s butt open and fill him with cum.

Midnight pushed Flash downward - gradually, but using all of her incredible strength. Flash’s ass spread open with painful slowness, stretching over the purple head of her cock. He shook, groaning from the violent burst of physical pleasure, and the vibrations made Midnight moan with delight. Her body swelled bigger, sinew groaning as her limbs bulged with more and more muscle. Her cock grew larger as well, packing on length and girth even as she slid Flash’s body lower.

“Oh Flash,” sighed Midnight, “I know you’ve never been fucked like this before, Flash. Now that you’ve felt Midnight’s massive meat inside your ass, how is any other girl going to satisfy you? Having you stretched over my fat cock, Flash… it feels so good, I can’t stop growing… I don’t want to hurt you, Flash, I don’t want to give you more than you can take… but you’re just making me grow bigger and bigger…”

She placed her hands on either side of Flash Sentry’s torso, holding him steady, and pushed her cock deeper. “I really did loosen your ass up, Flash!” she grunted. “You’re stretching over my dick like a nice tight cocksleeve… ooh, I don’t know if I’ll last too long! You’re so good, it feels like I could bust inside you any second now… I’ll try and hold myself back for you, okay, Flash? I know you want to get fucked long and hard and deep before I blow my big, hot load…”

Flash, of course, could only groan in wordless bliss. Midnight’s thick, throbbing meat was overwhelming his stretched-out body, hitting him with more pleasure than the human body was meant to deal with. Just feeling her cock sliding into his ass was making him cum massively, his comparatively tiny dick shooting again and again.

“Ooh, looks like you couldn’t hold yourself back either!” said Midnight. “That’s a big load for a little guy like you. “By the way, you’re not just coming here in the dream. Your real body is squirming and moaning and shooting a biiig load of cum! I’m mostly not using my magic to affect the real world, but I’m using a little bitof magic to replenish your nuts to make sure you never run out of cum.” She giggled. “I just love the idea of you waking up to some really sticky sheets! Now let’s see if I can make you cum again…”

She pulled Flash down hard, getting herself balls-deep inside him and stretching him over her five-foot shaft. Sure enough, Flash came again, his dick flinging cum wildly. Midnight didn’t hesitate; she slid him halfway up her cock and then slammed him back down, thrusting her hips to fuck him even deeper. “Oh, Flash,” Midnight moaned, “you’re perfect… maybe I should come back every night and fuck you in your dreams.” She pulled back and thrust again, her body surging with growth from the sudden burst of pleasure. She raised him up and brought him back down again, thrusting into him with a now six-foot-long shaft. “Yeah, she hissed, “Let’s see how huge I can get if I come here night after night and fuck you over and over… I know you want to get fucked by the biggest girl with the biggest cock, Flash! And you know that’s your girl Midnight Sparkle…”

Midnight thrust her hips harder, stretching Flash over her still-growing shaft, grunting and sweating as her body started to outgrow the bedroom. Her ass finally smashed the bed, her shoulders brushed against opposite walls, and her head cracked the ceiling. Beyond the walls of the bedroom, there was nothing but the swirling void of the dream world - and the bigger Midnight grew, the more cracks formed in the walls.

“Ahh… Flash, I’m close,” grunted Midnight. “My balls are so full, Flash, I’ve got such a huge fucking load of thick, potent cum to unload in your tight little asshole… nnngh, I really hope you’re ready, because… oh fuck, Flash, oh fuck-“

Midnight’s cock shuddered and throbbed. Her enormous nuts pulled tight against her body, and a thick gout of cum shot up the length of her shaft. The pleasure caused another surge of growth - and as Midnight fired off the first five-gallon cumshot into Flash Sentry’s asshole, she grew so large that her body smashed the entire bedroom to pieces. Floating in the void of the dreamworld, surrounded by the flotsam of Flash’s ruined bedroom, Midnight Sparkle emptied her nuts into Flash’s stretched-out asshole. He moaned, and shook, and came as gallon after gallon rocketed into his butt and splattered against his insides. He was already stretched out like a cocksleeve, but now he began to bloat with the sloshing volume of hot, thick cum that was pumping into him. And Midnight, all the while, was growing larger, swelling into a massive titan of pure muscle. Her cock was far larger than the boy she was using it to fuck: seven feet long, three feet thick, shooting more cum with each throb.

Flash’s body became a living water balloon of sloshing spunk, so full of Midnight’s seed that he looked like he was going to burst. But this was a dream, where the only limit was the imagination. So he grew bigger, expanding until he was practically a sphere - and when Midnight’s climax finally died down, he was big enough that Midnight could barely get her hands around him. She pulled him up, sliding him off her cock, and when he popped off the head of her shaft his asshole only lost a gallon or two of her cum.

“Oh, you look very handsome,” said Midnight, holding him in her hands like a baseball. “This might have been more intense than you were expecting, Flash… but look at me! I’m a being of limitless power. I am more than a god. When you are touched by my love, Flash Sentry, it’s only natural that you would be… transformed.” She brought Flash to her face and kissed him, engulfing his entire face with her deep purple lips. “Of course this is just a dream, but something tells me you will be changed by this,” she laughed.

“Oh, speaking of which,” said Midnight, glancing around, “It’s not exactly safe for a normal person to be adrift in the dreamspace. Since my bulging body smashed apart your dream, I guess I should make a new one for you…” she paused, turning over Flash’s bloated body in her hands. “...or I could find another safe place for you.”

Midnight reached down and lifted her heavy nutsack, revealing her slick pink slit. Big as it was, Flash’s body was still a tight fit when she began to shove him inside of herself. “Flash, baby,” she cooed, “there’s nowhere safer than in Midnight Sparkle’s big wet pussy. My body can handle the dreamscape just fine… Hell, it could take a direct hit from a meteor, no problem! And if you’re inside my tight cunt, you’ll be just fine too.” She pushed him deeper, grunting with effort. “And something tells me you’re going to like it in there. Warm and safe and wet and musky… you can wiggle around all you want, or you can just lie there and let my pussy muscles massage your blobby body.”

She pushed him all the way in, until her pussy lips closed around his legs. She squeezed his body, rhythmically compressing his body with motions of her pussy walls, sighing with pleasure as she felt the size of the cum-bloated body inside her. “Ooh, you are big,” she moaned, running her hands over her tits. “I filled you with a lot of cum, didn’t I? Made you real big… and you made me real big too!” She clenched harder, squeezing Flash tighter. “Heh… when you went to bed tonight, I bet you never thought you’d have a dream this nice.”

Flash quivered and moaned in the wet, musky darkness of Midnight Sparkle’s pussy. Each time she clenched, the powerful muscles of her pussy stroked every inch of him… including his cock. Even after multiple massive orgasms, he felt another one building - and he came once more…

...and awoke in his bed, cumming into boxer shorts that were already soaked with his jizz. And for Flash, waking up didn’t feel like it normally did. He wasn’t rising out of a fog; he awoke with perfect clarity and vivid memory of what had just happened to him. He sat up, patting at his body, confirming that he wasn’t a cum balloon. But as he did, he burped - and a half-liter of Midnight Sparkle’s cum rose up from his throat and filled his mouth.

“Oh, damn it,” said Midnight, poking a finger into her now-empty pussy. “He woke up!”

She sighed, wiping her hand on her thigh. “Oh well,” she said, “there’s other ways for a girl to have fun.”