Little Mare, Big Family

by Cosmonaut

Rating: mature
Tags: Scootaloo, Rumble, Sex, My Little Pony: Friendship is Magic, Romance
Length: 8933

Scootaloo, now is a very small mare adult & married to Rumble, a HUGE stallion. They decide to start a family & to their surprise, Scootaloo winds up pregnant with quadruplet colts! A magic spell lets grows Scootaloo large enough to carry the foals..

Scootaloo, now an adult and married to Rumble, is a very small mare. She gets mistaken for an adolescent constantly, but she deals with it. Meanwhile, Rumble is a HUGE stallion, easily a head and a half taller than your average guy. They decide to start a family, but to their surprise, Scootaloo winds up pregnant with quadruplet colts! Realizing the pregnancy would be extremely hard on Scootaloo her doctor advises her to seek out magical assistance. Starlight Glimmer concocts a spell to transform Scootaloo’s body to be able to adequately carry the pregnancy to term, and over the next few months, Scootaloo grows bigger and stronger, the process speeding up as the pregnancy progresses....

A collab with Klamnei

Published 2017-06-09 17:50:11 UTC
Last updated 2017-06-14 00:34:45 UTC

The Need

“Number FOUR! Your order’s ready!” a stallion bellowed from behind the counter. He placed a nondescript brown bag on the counter. “Kids meal! Number FOOOUUUR!”

“HERE!” called a raspy voice. “Right here! I got it!”

The stallion blanched. His eyes darted around before leaning over to see a small orange pegasus in front of the counter.

“Oh! There you are! Okay, so there weren’t any specifics from the sheet about whether to put in a filly’s toy or a colt’s, so I put both!” The stallion pointed to the side of the bag, some hard plastic bulging through the paper. “Don’t tell your mama I did, though. I could get in trouble!”

Scootaloo scowled up at the stallion. “I’m twenty-six.”

“Oh!” His expression faltered. “M-My mistake, miss! I thought you were… Erm, here you go!”

The stallion dropped the bag down to Scootaloo’s level. She snatched it with a light blush, turning and trotting briskly to the exit. Even in the din of weekend Hayburger lunch hours, she could hear ponies snickering.

The outdoor seating was barren of other ponies in the hot, humid day. The glare of the beating sun drained any poor sap that stayed out in it, but Scootaloo didn’t care. She didn’t mind the sun in her face, and a breeze was starting to pick up, anyways. She plopped herself down at a tiny table for two and unwrapped her meal, staring at it as if it’d insulted her mother. The two brightly colored plastic toys rattled onto the table next to her hayfries.

“Let it go…” Scootaloo took deep breaths, nice and slow in, long and gentle out. “It’s fine. He didn’t know any better.”

The warm breeze blew past. Scootaloo flared her little wings out to cool her body, but the heat she felt wasn’t entirely temperature-related. Many mares were in season right now, and some had worse self-control than others. That this year was being particularly intense for Scootaloo wasn’t helping things.

The toys listed in the breeze, rolling to the side of the table as she took her first bites. A kids meal was a small portion, meant for small ponies that couldn’t eat large meals in single sittings. Scootaloo couldn’t help but sigh.

A small family trotted out of the restaurant single file. A stallion, a heavyset mare, and three foals trailing behind like a boat pulling a string of life preservers. One of them, a light blue unicorn colt, drifted near Scootaloo’s table to inspect a bug on the ground. As if on cue, the breeze picked up again, dropping the green plastic toy in front of his nose.

“OOH!” The colt’s eyes lit up. He snatched the toy, holding it up in his magic. “Hey, can I have this for my brother?!”

Scootaloo raised an eyebrow. She stared at the plastic toy, now smudged by dirt. “Uh… sure? Yeah, you can have it.”

“Thanks!” The little colt stood and scampered off with a toothy smile.

“No problem,” she said, returning to her food.

“You should come play with me and my brother and sister by the playground!” he called over his shoulder. “We’ll be there for a bit!”

“Why would I—” Scootaloo cut herself short. Of course he’d mistaken her for a filly, too. She probably only had a few inches over him.

“Because it's fun!” The colt raced over to the park, where his parents were already settling down. “See you later!”

Scootaloo was confused. Minutes ago, she’d had to stop herself from chewing out a cashier, but now, she was waving goodbye at this colt, her grin mirroring his. She continued pecking at her food in silence, staring wistfully at the small family.

She hadn’t realized the mother was pregnant. Every couple of minutes or so she’d stroke or cradle her belly, swinging her legs on the park bench. The warm sunlight made her olive coat radiant compared to the stark black bench. She watched her three oldest with a fond smile, running around and having the time of their lives.

Scootaloo was reminded of her own adventures at that age. The sounds of laughing, screaming, tackling, clambering about called to her, reminiscent of times long past. She usually found the noises of children irritating, but something had been different lately. Occasionally she’d get lost in thought after seeing parents with children, an odd flood of thoughts and emotions washing over her.

The idea of watching over foals. Feeding them. Taking them to school. Bringing them presents and taking pic—

“MOMMYYY!”

Scootaloo jumped. The little filly of the family was clutching her leg, wailing from under the monkey bars. Her brothers were racing back to their parents. After some out of earshot chatter, the father and two boys cantered over back inside the restaurant while the mother levitated her daughter to the park bench.

Scootaloo forgot about her meal. She snagged the plastic pink toy and darted over to the park, mind entirely focused on the crying filly.

“Shush shush,” the mother tousled the filly’s curly red locks. “Don’t worry, daddy’s coming back with a bandage, and you’ll be allll better… Oh, hello!”

Scootaloo blinked. She suddenly felt like a zombie who’d just re-learned to speak. “Uh, hi! I’m Scootaloo.”

The crying filly hitched her breath a couple times in response.

Scootaloo realized she wasn’t gonna get much more than that, so she just held out the small toy. Instantly, the filly’s whole face changed.

“Th-Th-The stallion said th-they didn’t have any more...” She took the toy like it were a precious fragile treasure. The tears in her emerald eyes dried up.

“What do you say to the nice filly for sharing, Sweet Pea?” the mother said in a sing song voice.

Sweet Pea smiled, then surprised Scootaloo with a big, tight hug. “Thank you so so SO much, Scootaloo!”

The mother chuckled, excusing her daughter as a little serial hugger.

It didn’t make any sense. Scootaloo didn’t know or care about this filly until but minutes ago, and yet her heart was soaring. Scootaloo hugged the little girl right back, and despite the embrace only lasting seconds, it felt like an hour to her.

“You’ll be okay,” Scootaloo said, her voice soft. She waved her wing goodbye, then took to the air and flew home.

She finally recognized what she’d been feeling lately. What’d been lingering at the back of her mind for months. It’d boiled over to the forefront, everything falling into place.

She wanted to be a mom.

The Den

“Scootaloo!” Rumble called. “I’m home!”

The usual buzzing of wings didn’t greet him. Odd... that was the normally first thing he’d heard coming home.

“In the den!” called Scootaloo down the hallway.

Ah, there she was. Rumble briskly trotted down the hall… but stopped short before the entryway. His nose crinkled at a scent, a strong scent—one he’d been smelling on Scootaloo more and more this last week. He took a deep breath and trotted inside the den, loins already stirring.

“Hey, watch it! Down here!”

Rumble almost tripped over his tiny wife. He hadn’t expected her to be right around the corner.

Scootaloo craned her head up at Rumble. She’d long gotten used to having to do so, but she couldn’t do it for very long without getting a neck cramp. When they’d first started dating in school, he hadn’t anything unordinary height-wise. But then something in him got flipped, and he’d started to inch up, and up… and up. By their sophomore year he was already as tall as the teacher, and when they’d graduated, he was even bigger than Big Mac! And he hadn’t even been done growing by then! He’d gotten even TALLER since then, now an absolute giant of a stallion in every way. He was now twice the size of a typical mare, and seeing as Scootaloo was even shorter than your typical mare…

“I’ve been waiting for you ALL day!” Scootaloo stabbed a hoof into his strong chest, feeling like a tickle to him.

“I can tell.” Rumble sniffed the air, the den thick with his wife’s unique scent. The head of his cock slipped out of its sheath and began to stiffen. “What’s, uh... gotcha so excited?”

Scootaloo fluttered up to his face, meeting his violet eyes.

“You.”

She ambushed him with a fervent kiss, her tiny tongue sparring with his. Rumble growled and pushed back, his big hoof coming up behind her small rump. His fetlocks were dampened instantly. They traded kisses back and forth, making out with rising need.

“I need you.” She broke the kiss with a gasp, her face flushed. “FUCK, I NEED you!” Scootaloo slid off and zipped to the ottoman by the sofa, throwing herself over it. She lifted her flagging tail, revealing her soaked sex.

Rumble was immediately over her. He spread his hind legs as wide as he could, their size difference limiting him. They were always trying new positions, but this was a classic. Scootaloo moaned as his cock slapped her ass, his tip staining her fur.

Scootaloo groaned, low and guttural. She felt every bit of his cockhead wedge inside her, and she had to fight not to shove back. Inch by inch he squeezed his way in, making her feel like she was being split by a log. It wasn’t an exaggeration to say his dick was over half as long as she was. It was such a tight fit she could feel every subtle vein, every bump of his length, every throb of his heartbeat.

A breathless second later, Rumble had fit his limit. Only a third of his pride was stuffed inside his wife’s eager pussy, but he wasn’t about to complain. Her tunnel was warm, wet, and tight as a vicegrip. And besides, other mares wouldn’t be able to take much more, anyway.

“AH!” Scootaloo beat her wings, hitting Rumbles sides. “FUCK MEeeEEeEe!” The first orgasm hit her like a train, her walls spasming and squirting.

Rumble bucked his hips in long strokes, losing himself to the pleasurable rhythm. His every thrust brought a stilted cry from below, music to his ears. It was just fuel to the flames, and before long, Rumble was building up to his eventual release. Scootaloo’s voice cracked again, her wings thrashing in another powerful orgasm.

“Rumble…” Scootaloo panted for breath, feeling his massive tool thrust harder. “R-RUMBLE! HEY!”

Rumble grit his teeth. He was on the verge, needing just that little more to go over. “What?!”

“D-Don’t…” Scootaloo cut herself off with a low groan. “Don’t pull out!”

Rumbles eyes snapped wide. “What?!”

“You heard me!” Scootaloo squeezed him hard, locking her forelegs around his.

Rumble’s mind raced as his shaft surged, his tip flaring wide.

“You’re sure!?” he choked out.

“YES!” Scootaloo shouted... then howled as she felt his first hot gush of seed. “YES! YES! YESSSS!!!!!”

Four, Five, Six. It just kept coming and coming. Scootaloo’s little belly began distending, desperate to contain it all. Eight. Nine. Ten. Eleven spurts. She moaned as her lower end slid to the floor a carnal fire being quenched. Rumble’s stiff cock slid out as he backed off of her, and he folded his legs to join her on the comfy cloud floor. A small amount dribbled out of Scootaloo’s relaxed pussy, but the glut of his cum remained stuffed inside, evident by her rounded belly.

“Hey.” Rumble nudged Scootaloo out of her sexual stupor. “What gives? I know we’ve talked about this before, but never with a ‘when’. What happened?”

Scootaloo laid her head against his side. “I... don’t know. We’ve got a home, bits, jobs… something just clicked, I guess. I can’t explain it beyond that.”

Rumble hugged her with a humongous wing. “Well… maybe now was just the time.”

She turned her head, an elated grin on her face. “You… Me… We’re gonna be great parents.”

They kissed deeply, Rumble stroking her with his wingtips. Scoot nuzzled his cheek and wiggled closer, a sleepy serenity sneaking up on her.

“D’you think I need to buy a pregnancy test?” he joked, his feathers dancing on her belly.

“Not if I buy one first.” Scootaloo nipped his neck where he liked. “Get used to be gentle with that belly over the next year, though. Our kid’s gonna be in there!”

In comfort and warmth, the two drifted off to sleep.

The Spell

2 Months Later (2 Months Pregnant)

“Missus Scootaloo…” The doctor glanced up from her chart. “I have to be blunt. As your doctor, I’m certain your tiny body will have issues supporting your colt quadruplets.”

Scootaloo grit her teeth. She hung her head low, muttering a bitter curse. Just another thing her dwarfism was taking from her, laughing all the while.

“It’s not fair.”

The doctor sighed. “Life rarely is. I think it’s time to realistically look at your options, and see which one you want to choose. You really can’t afford to wait.”

Scootaloo flattened her ears. “I’m not going to termi—”

“No one’s saying you have to,” the doctor said. He bade her sit down, his voice calm and steady. “If you and your husband have already decided against that, there are other paths we can consider.”

Scootaloo plopped down in the chair, her expression neutral. “Such as?”

The doctor cleared his throat. “There have been other cases similar to yours. Er, multiple pregnancies where the mother was at high risk, I mean. The treatment plans have all involved magic in one form or another, but many have a high success rate. One in particular would be the best option for you, as I believe it would solve most all your potential problems.”

Scootaloo folded her hooves. “I’m listening.”

The doctor nodded. “I strongly recommend you have a very specific spell cast to grow your body accordingly so you can carry your foals. It’ll need to be cast by an S-Rank unicorn or higher, but as I understand you’re acquainted with Twilight Sparkle, either her or her pupil will suffice.”

“Hold on.” Scootaloo held up a hoof. “‘Grow my body accordingly?’ What’s that even mean?”

The doctor clicked his tongue. “In essence, a set threshold would be set on certain parameters of your body. This threshold would monitor your vitals, along with several of your body’s systems. Whenever one of them is taxed beyond the set threshold, the spell would activate, transfiguring your body to accommodate to the increased workload. For instance, when your skin starts to strain from your expanding womb, the elasticity of your dermal tissue will increase. When your musculoskeletal system is overly taxed by your increasing weight, your bone and muscle tissues will grow in density and mass. When your excretory system is taxed by your womb putting pressure on your bladder—”

“Okay, okay.” Scootaloo made a face. “I get the picture.”

The doctor made a few jottings on Scootaloo’s chart. “In the recorded cases this spell has been cast correctly, a 95% success rate has been recorded in the pregnancy progressing to term. After that, it’s just a matter of keeping up on your check-ups to monitor the integrity of the spell. That’s what’s caused the 5% failure rate, in case you were curious.”

Scootaloo’s spirits rose. “So you’re saying I have this spell cast on me, then just keep going to the doctor, and I’ll be fine?!”

The doctor chuckled. “More than fine, should you choose to have a Permanency spell cast afterward.”

“Heck, yeah!” Scootaloo shook the doctor’s hoof. “Thanks a ton, doc! I’ll do that!”

The doctor wrote out a few things on a scroll, then signed it and gave it to Scootaloo. “This is the name of the spell. I’m sure Princess Twilight or Starlight Glimmer will recognize it.”

Scootaloo snatched the scroll and sped out of the office in a speedy blur.

“You know what’s interesting about this spell?” Starlight Glimmer said from behind a spellbook. “It’s actually four separate incantations that are meshed together in an Starswirlian framework! It’s really quite fascinating!”

Scootaloo fidgeted as she fought to stay still. She was enveloped in the blue hue of Starlight’s magic, its energy creeping and crawling all over every nook and cranny of her body. “I-If you say so…”

Starlight looked up. “Something wrong?”

Scootaloo grit her teeth. “Kinda wish I’d said yes to your offer to freeze me in place while you do this—”

FLASH!

Scootaloo blinked. She tried lifting one of her hooves, but it didn’t budge.

“There you go!” Starlight said with a bright smile. “Better?”

Scootaloo muscled down her cringe. She forgot Starlight could be a little… overenthusiastic.

“I’m so glad you came to me for help!” Starlight returned to the book, double checking the instructions. “I didn’t even know that you were pregnant! How far along are you?”

Scootaloo sighed. “Eight weeks. Only just did the first arcanosound on Tuesday. Imagine Rumble’s and my surprise when we saw four soul signatures.”

“Ha! I’ll bet!” Starlight said. “Let’s see… manipulate the Dacrenzic array while melding the Reverse Talvnar field… transmit a negative eldritch sine burst and maintain it for at least four seconds… Pfft, easy-peasy.”

Scootaloo remained quiet while Starlight worked. Twilight would’ve been the preferred choice for this, but she and Spike were away in the Dragonlands for a few weeks. Starlight was the only choice to get this done without going up to Canterlot.

“Let’s see…. One more thing…” Starlight scanned the arcane tome. “If done correctly, the subject’s magic signature should be glowing white… check… now funnel ten thousand units of hornpower into the subject—TEN THOUSAND?! Holy hay and oats! No WONDER this spell needs a Talvnar field!”

Scootaloo wasn’t all that familiar with unicorn magic terms, but she did know numbers. Ten thousand was a big number. “Uhhh…”

“Whatever.” Starlight tossed the book aside, levelling her horn at Scootaloo. “Guess it explains why they only let an S-Class cast this. Sheesh, ten thousand…”

“Starlight?” Scootaloo said. “Should I be—”

“Shh!” Starlight froze Scootaloo’s mouth as well. “I need to concentrate.”

Scootaloo was helpless as Starlight’s horn began to hum… buzz… then whine. Light gathered around Starlight as she summoned forth more and more power, the rising energy making Scootaloo’s skin prickle. The light of the room dimmed, the pressure gathering more and more, to the point that it was almost painful in Scootaloo’s ears. She probably would’ve been yelling if she could talk, but effectively paralyzed, the only thing she could do was look on. Starlight now looked like a blazing effigy of power from all the magic gathered, and there was a split second of silence before—

VWUMMMMM

Magic erupted from Starlight’s horn in a shining ray. Scootaloo could only mentally scream as she was struck square in the chest, her body absorbing the energy and seeping into her cells. She imagined this was what being struck with lightning felt like, except here it was prolonged, lasting several seconds before the blast was fully spent.

Starlight panted for breath. She woozily raised her head and rubbed her smoking horn, looking Scootaloo over. “Greh… zeh… There, I think… that did it! Phew… how do you feel?”

Scootaloo didn’t reply.

Starlight blushed. “Whoops! Ah, heh-heh… sorry, I’ll uh... unfreeze you now…”

SLAM!

“I’m home, Rumble!” Scootaloo called.

There was some noise from further inside the house. A few seconds later, Rumble came in from the living room, expression pensive.

“How’d it go?” he asked.

Scootaloo fluttered up, giving him a quick kiss. “Way better than I expected! The doc recommended a spell to help the pregnancy, and Starlight Glimmer cast it!”

Rumble cocked his head. “So you’re going to be okay?”

“More than okay!” Scootaloo put her hooves on her belly. “Just you wait, Rumble. There’s gonna be some BIG changes coming...”

The Spurt

2 Months Later (4 Months Pregnant)

Scootaloo and Rumble pushed a shopping cart down a grocery store aisle. It was already filled to the brim, but Rumble wasn’t having trouble pushing it along. Understandable, considering his supersized frame was wider and longer than two of the things put together.

“Let’s see…” Scootaloo double checked her list, which was over a foot and a half long even after it’d been folded in half. “We still need anchovies, grapefruit, pineapple, hay bacon, oats, raisins, mayonnaise, kumquats, cherries, apples, milk, orange juice, decaf tea, pickles, peanut butter, jelly, grapes, bread, eggs, sugar, spices, tomatoes, celery, beets, radishes, avocados, sugarcubes, cereal, potatoes, cheese, mustard, ketchup… Yeah, we’re gonna need a fourth cart.”

Rumble snickered. “We’ve been able to fit it all in three til’ now. Guess that’s a new record.”

Scootaloo rolled her eyes. “Well, between you, Mister Bottomless Pit, and me being a growing mare…”

Rumble smiled. He put a sail-like wing around her, stroking her with his feathers. “I noticed you’re at my shoulder, now.”

Scootaloo had noticed, too. Where before she’d almost been able to walk under him without ducking, she now actually looked like an adult! She was growing like a weed, already even taller than your average mare! Of course, said growth had come at the cost of becoming a living vacuum, but sucking down food at a breakneck pace was an acceptable trade-off.

And besides, not all of it was going to her. Scootaloo’s pregnancy was starting to show, her formerly slim belly now filled out nicely. Her last check-up had shown the boys were nice and big, the spell working to keep them healthy as well.

“Just you wait, honey.” Scootaloo nuzzled him as they went to the front of the store where their other two filled carts waited. “I’m only getting started.”

2 Months Later (6 Months Pregnant)

“Thanks for the onesies, Rainbow Dash!” Scootaloo waved as the last guest from her foal shower flew off. She closed the door and walked back into her living room, cleaning up the remnants of wrapping paper.

There was the sound of a toilet flush. Rumble emerged from the bathroom, coming over to stand beside her.

“We got a good haul, didn’t we?” he said.

Scootaloo looked at the ginormous pile of gifts. All of it was in fours, all of it for colts. She soon was gonna be outnumbered by boys five to one.

“I know it makes the shopping easy, but I still wish one of them was a filly,” she said.

Rumble snickered. “Better luck next time, eh?”

Scootaloo nodded. She sat back on her haunches, feeling her now noticeably-pregnant belly. Heavy, wide and firm, it’d be dragging on the ground already if she was her old size. She could feel the little wiggles of her sons shifting now and again, lulled into slumber by the rhythmic beat of their mom’s heart.

“I gotta say, no single pregnancy’s ever gonna compare to this,” she said.

Rumble’s tone turned coy. “There’s always fertility spells…”

Scootaloo ignored that. “I’d say the best gift we got are those enchanted diapers Twilight got us. Those are gonna save us a ton of money.” She fiddled with her longer mane, blowing a lock out of her face. “Ugh, I need to cut my mane again…”

Rumble put a hoof around her, kissing the top of her head. “I kinda like you with a longer mane.”

Scootaloo leaned into him. “Yeah?”

“Yeah.” He rested a hoof on her stomach, stroking it idly. It still baffled him that Scootaloo was now tall enough to be able to full-on lean against his chest! Before, she could only do that with her head. “I still can’t believe how big you’re getting! I think you might now be about the same height as a stallion.”

Scootaloo smirked. She pulled his head down, kissing him with a sudden energy. He became putty in her hooves, her hunger infectious.

“I’m catching up to you, big boy,” she said after they broke. “What’cha think of that?”

Rumble’s face flushed, his mouth dry.. “...Catch up. Catch up, please.”

Scootaloo hummed. Her tail swished back and forth, entwining with his. “But maybe I don’t wanna catch up to you, hmm? Maybe I wanna SURPASS you. Maybe I wanna be able to call you Shorty.”

Rumble bit back a moan. He felt himself unsheathe, his dry, earthy scent tickling Scootaloo’s nose.

“And just think,” she purred. “Once these four are born, I’ll be better off to have more foals later. How many did we decide on, again? Seven, I think it was?”

“Screw seven.” Rumble’s voice dropped to a growl. “I wanna fill you up with so many foals, you could be twice my size and still have a baby belly grazing the ground.”

Scootaloo sucked in a breath like a hiss. The thought of having that many growing lives inside her…

It wasn’t long before they wound up in the bedroom.

2 Months Later (8 Months Pregnant)

“I’m home, Scoots!”

Silence greeted Rumble. He stood still, straining his ears for any sound. He’d just been gone for a week on business, and hadn’t really expected to come home to an empty house.

Then Scootaloo’s voice sounded from farther in.

“In here, babe~”

Was… Scootaloo was in the bedroom? Huh, strange, it wasn’t that late. Maybe she wasn’t feeling well? He trotted through their house, past the living room and down the hallway—

A blur of orange hit him in the side. Rumble let out a surprised squawk, suddenly pinned to the wall. He opened his eyes to realize he was staring into a pair of lusty violet eyes.

“Heya,” Scootaloo said.

Rumble went rigid. Scootaloo was eye level with him, face to face without any help at all! She was eyeing him like a piece of meat, her thick, violet mane spilled around her neck.

“Mmm…” Scootaloo licked him, tasting his neck in a long, slow swipe. “I missed you…”

Rumble found it hard to think with all his blood being re-routed. “S-Scoot?”

Scootaloo kissed him, hard, and forceful. Her tongue wrestled with his, cooing as she felt his hooves wrap around her. They made a game of it as they pushed back and forth, but Scootaloo got the better, taking lead.

They broke a while later, out of breath in the best way.

“Welcome back, hot stuff.” Scootaloo petted his chest. “Just so you know, I measured myself this morning, and I noticed that we’re now the same height! Wanna celebrate by fucking each other’s brains out?”

Rumble was at full mast in seconds. He kissed her again, his nostrils flaring with the musky scent of excited mare. They staggered to the bedroom, never breaking the kiss, smashing the door open. In smaller places they would’ve had to duck, but this house had specifically been built to accommodate Rumble’s (and now Scootaloo’s) giant size.

Rumble gave way to Scootaloo’s need. His hooves wandered to pregnant belly, full, round, and firm. She looked like she was overdue with twins! She moaned as he felt how big their four foals had grown, healthy and strong as her.

Scootaloo kissed him even harder, guiding his hooves to stroke her. She could smell his scent as well, mingling with hers and making her even wetter. They didn’t even get to the bed—she broke their kiss and whirled, flicking her damp tail in his face.

“Take me.”

Rumble’s eyes shrank to pinpricks, and in seconds he was properly mounting her for the first time ever. They both groaned, his virile cock shlicking inside her tight folds. Scootaloo’s paunch grazed the ground as her front legs bent, her rear ones locking in place, feeling oh-so-very right. She called out his name as her cunny swallowed his medial ring, the rest of his mammoth size still too much for her tight tunnel… for now.

Rumble held nothing back. He fucked her hard and fast, filling the room with wet thwap! Thwap! THWAP! Scootaloo wailed like a mare in heat, relishing the feel of his entire weight draped over her like a blanket. She revelled in his embrace while begging him for more, egging him on to go harder… DEEPER. Her gravid womb swayed in time his thrusts, a distant part of her noting that if she were still a shrimp, she wouldn’t even be able to walk anymore.

But not only could she walk... not only could she fly… she was getting bigger and stronger every single day.

Rumble couldn’t take it. Before long he was right on the edge, and Scootaloo’s walls clamped down on him, holding him in place. With a guttural cry he came, filling her fertile depths again with sticky seed. Scootaloo’s tongue lolled out her mouth, crooning as she felt his hot, wet heat, combined with the flutters of their children and his weight atop her.

He was soon was fucking her again, the beginnings of a very good night.

The Hot Lunch

2 Months Later (10 Months Pregnant)

“Hey, Boss!” A pegasus stallion waved at Rumble. “Back already?”

Rumble waved back, a happy smile on his face. He whistled as he set to to work gathering the bigger, more stubborn clouds.

Another stallion came up beside the first. “Aw man, Rumble’s back? I thought we’d finally got rid of—I mean, I thought he got that big, fancy promotion! Does that mean we actually have to do work now?”

“Damn right, ya do!” Rumble rubbed his hooves together, gathering pegasus magic into his hooves. “Listen up! Cloudsdale wants me to manage Ponyville’s weather team until they find my replacement! Chip Cutter, go wrangle up the stray clouds on the Everfree border. Cloudsdale wants us to have a rainstorm tonight. Crackle Pop, go tell the newspaper! Rain starts at four p.m!”

The two stallions saluted, flying off in separate directions. Rumble set to work gathering more clouds, forming a mass in minutes that would’ve taken most pegasi an hour.

The morning passed, the weather team working hard to get ready for the storm. Rumble oversaw thing while also doing a lion’s share of the work, their progress going smoothly.

Eventually, the team broke for lunch.

“Aw, horseapples…” Rumble rummaged through his saddlebags for the third time. “Don’t tell me I forgot it. I coulda swore I packed it—”

“Oy, Boss!” Crackle Pop pointed to an orange dot flying up from below. “I think your lady’s coming up!”

Rumble looked over the cloud’s edge. Sure enough, Scootaloo was swiftly rising to their height, ascending in a lazy circle on a thermal. Her wide wings stretched out far to either side, her violet mane and tail waving like windsocks.

“Erm, I don’t think that’s Scoots,” Chip said. He’d gone to school with them, and knew her past. “She’s never really been able to—”

“It’s her.” Rumble closed his saddlebags, motioning Chip Cutter over. “You haven’t seen her in awhile, have you?”

Chip furrowed his brow. “Well, no but… how can that be her?”

Rumble laughed. “You’ll see.”

A moment later, Scootaloo was at their altitude. She exited the thermal and coasted over, landing easily on the cloud.

“Don’t mind me!” Scootaloo shrugged off her saddlebags, making a beeline for Rumble. “Just making a delivery.”

Several jaws dropped, Chip’s most of all.

“Holy shit…”

It was pretty common knowledge that Rumble’s wife was a runt of a mare. Further adding to it was that Rumble was the largest non-alicorn pony any of them had ever seen, so the size difference was even more extreme.

The mare that stood before them, though, was no runt.

“SCOOTALOO?!” Chip rubbed his eyes. “Is that you?!”

Scootaloo turned at the familiar voice. “Chip Cutter!” She waved at her old classmate. “Wow, I haven’t seen you since the wedding! How’re you liking the weather team?”

Chip stammered and spluttered. He associated that scratchy voice with a petite tomboy with wings like a hummingbird, not a massive maternal mare nearly twice his size! Her long mane and coat had a blooming sheen, her wings powerful and developed. The flight muscles in her back rippled and flexed, even moreso as she stretched out like a cat. And her burgeoning, swaying belly hung low between her legs, its wide, round shape jutting out well past her hips.

Scootaloo ruffled his mane as she passed. “Don’t keep your mouth open too long. You’ll attract flies.”

“Hey, hun!” Rumble came up to nuzzle her. “Sorry you had to come up here.”

Scootaloo rolled her eyes as she gave him his lunch. “I get to do something I’ve spent my whole life wishing I could do. You don’t need to apologize.”

Now the weather team was gawking even harder. This was Rumble’s wife?! The dwarf everyone talked about?! She was even TALLER than their huge-ass boss!

Scootaloo leaned down to whisper in Rumble’s ear. “When will you be home?”

Her sultry tone sent shivers down Rumble’s spine. “R-Rainstorm’s scheduled for four. Gotta stay ‘til then.”

Sneakily, Scootaloo’s hoof snuck up to squeeze his toned rump. “You should say you’re gonna have lunch with me so we can sneak in a quickie.”

Rumble nearly bit his lip so hard it bled. “You think we can make it quick?”

“Mmm… we can try… “ Scootaloo’s hoof inched lower, creeping closer to his balls. “I’ll be in your that piddly little office of yours. Don’t keep me waiting, Shorty. I wanna rut your brains out again.”

Scootaloo cantered away towards a squattish looking cloud structure a hundred yards away. Rumble couldn’t help but gaze longingly at the gentle sway of her hips, the pear-shaped orange mass swaying beneath them.

“...Hey, Boss?” Chip asked.

Rumble swivelled his ears.

“Does Scoots have a sister, by chance?”

“A big sister… of sorts.” Although Rainbow Dash was now more the little sister these days. “Enjoy your lunch, fellas. I’ll be in my office.”

————————

Inside of Rumble’s office was a slew of boxes and posted papers—standardized sheets that had to be on premise, but safely put where the wind wouldn’t blow them away. Once a job was complete, the cloudbuilt structure could be moved to the next location with a few strong kicks. Rumble had barely been in his office before he’d been promoted, and hadn’t ever gotten around to expanding it to fit his size. As such, it was just a ten by ten square with no windows, one chair and one desk.

Rumble opened the door to find Scootaloo behind his desk, inspecting some papers pinned to the wall. Her massive body consumed the entirety of the far wall, and her bulging belly had forced the desk out of her way. The sound of him entering got her attention.

“That was three minutes.” Scootaloo pretended to pout, backing out of the corner she’d squeezed herself into. “I was starting to think you weren’t hungry.”

The bag lunch fell from Rumble’s mouth. “You know, I was hoping I’d get a chance to eat out.”

Scootaloo snickered. With how large they both were, the office might as well had been a closet. Her belly and folded wings pushed against everything in her way until she finally, she had her plush, jiggling rump right in front of Rumble’s nose. At her current height, he only had to just bend his neck to reach her nethers. But it wouldn’t be long before he could pleasure her while standing...

“Clock’s ticking.” Scootaloo wiggled her ass in his face.

It wasn’t like she had to twist his hoof. Rumble dove right in, his large, wide tongue plunging into her eager cunt. She was already hot and quite wet, so he wasted no time lapping and wriggling his tongue about, swirling in and around her plush slick lips like an overeager colt with an ice cream cone.

Scootaloo moaned, her snapping her wings open. Now at fifteen feet, her wingspan more than matched even Princess Celestia’s. They smushed against both walls in the room, skirting the floor as she stamped her hooves. In a hot minute they both were sweating and panting, not only from exertion, but from the heat their large bodies gave off in the tiny space.

Rumble smacked Scootaloo’s ass, her cheeks jiggling like a water balloon. Scootaloo yelped and shook her mane, her labia winking and dripping. Rumble spanked her a few more times, this time punctuating it by wrapping his lips on her ping pong ball-sized clit and flicking his tongue.

Scootaloo shrieked. Her front legs bent forward, her whole body shaking with the force of her orgasm. A gush of marecum squirted all over Rumbles face and neck, and he buried his snout in her pulsing snatch, lapping like there was no tomorrow.

But eventually, Scootaloo’s orgasm subsided, her heavy panting easing up. “That… was good…. hah… but it’s not….. hah… hah... what I came here for.” Scootaloo flicked her tail to the side, her flower winking again.

Rumble flapped his wings and mounted Scootaloo. Or at least, he tried to. His wife was so much bigger than him now that he couldn’t even properly rut her! Scootaloo giggled at the sensation of his hard cock sliding against her belly—he couldn’t even reach her ass!

“Damn it!” Rumble snorted steam, slipping off her.

“Get on your back, Shorty,” commanded Scootaloo. She straightened and turned around, careful not to knock into anything. “I’ll be on top.”

Rumble gulped, looking up to his enormous wife. “Uh… you’re a lot bigger than me now, Scoot… Bigger and heavier…”

Scootaloo flexed one of her forelegs, the thick, rippling muscle popping up through her sweaty orange coat. “Stronger, too! S’one of the perks of all this... but you are NOT a fragile stallion Rumble. Don’t worry!”

An inkling of worry remained in Rumble’s mind… but he REALLY wanted to have sex with his wife right now. His eager, throbbing horsecock agreed, too. His lusts won in the end, and so Rumble laid down flat on his back, his boner standing straight up like a twitching black flagpole.

Scootaloo grinned. If she looked tall on all fours, she had to seem gargantuan from a low vantage point. The look on Rumble’s face supported this idea as she swung her long, sturdy form over him, his cock throbbing even harder.

“Just lay there and relax, babe,” Scootaloo said. “I’ll do all the work.”

Scootaloo’s gigantic orange womb swayed in front of Rumble’s face. Quick as lightning, he sat up to plant a few smooches on it. Scootaloo giggled and took a step back to position herself, and one double check later, she lowered her rear, feeling for Rumbles cock by touch.

Tab A found Slot B, and Scootaloo sat down.

Two realizations immediately hit Rumble. The first was that for the first time in their entire relationship, Scootaloo was able to take his entire length. And in one go, no less! She was amazingly warm, incredibly wet, and it made his dick harder than diamonds.

The second was that Scootaloo was stupendously fucking heavy.

Rumble could barely breathe. His world was nothing but orange as his eyes bugged out, his frame sinking more into the cloud.
“Ohhh, yeeeaaah...” Scootaloo’s inner muscles flexed and massaged Rumble’s thick tool, plunged so deeply inside her. Every muscle in her body was stronger, and the ones in her pelvis were no exception. “I needed this SO baaaaaaad...”

“Scoot!” came a small breathless gasp from below.

“Rumble…“ she bit her lip, running a hoof through her long, silky mane. “Oooooh, you feel so GOOD! FUCK!”

Rumble wheezed. His cock felt amazing, but everything else was being crushed! And he couldn’t even get Scootaloo’s attention with her titanic belly blocking her view! He finally had to reach up and tap it three times on the big warm mass to just to alert her.

“Mmmm? Oh!” Scootaloo adjusted her hindlegs and sat on them a little better. When she was her original size, she would tap on him three times if his size was giving her discomfort. The tables were turned, but she still remembered their code.

“Jeez, you are HEAVY!” Rumble gasped. Sweat dripped off his light gray coat, the office fast now a sauna. A lewd sauna, smelling of sweat, sex, and need.

“I’m only going to get heavier~” Scootaloo’s tongue lolled out her mouth. “Ooooh, you’re going to look like a little colt to me soon...” She gave a rippling squeeze around his turgid cock. “You’re gonna knock me up again and again… nggh… filling me up with MORE foals each times… mmhhh… you’re gonna make me so BIG…”

Rumble didn’t respond. He was getting close to his limit already. How could he have known sex where he didn’t have to move could be so rewarding?! Scootaloo was doing all the work, wiggling and squeezing, her velvety walls clamped down on his cock. He could feel his balls bloating and tightening, his head flaring deep within her...

Scootaloo was drunk on the sensations, mind foggy and fuzzy. To be so much bigger, to be so much to handle! Before, it was her that needed delicacy in their sexual excursions, her that was pinned to the bottom under a much larger lover! Now, SHE was the dominating force! She lifted herself off Rumble dick and bounced, her oversized clit bumping against his medial ring, and when it did...

“FUUUCK!” Scootaloo went over the edge. Her tunnel flexed and contracted, and Rumble followed right after, gripping her huge belly as he pumped her full of cum. Jet after thick jet he shot into her eager pussy, but Scootaloo took it all, squeezing so tight that not a single drop escaped her.

After the tenth and final spurt he relaxed, panting like he’d just run a marathon. Scootaloo had dropped her full weight on his pelvis again, but he didn’t care. He just felt too good. Life was too good.

What felt like hours later, the waves of pleasure finally ebbed. Scootaloo let out a long, satisfied sigh, standing shakily back up and relinquishing her prize. Rumble’s cock slipped out of her with wet schlick, followed by pints of their cum all over the cloud floor.

“That… was good.” Scootaloo smiled, body dripping with sweat and reeking of sex. In the dim light of their office, she almost looked like she was glowing.

“Agreed,” Rumble said. He was still on a sexual high himself. “What… time is it?”

Scootaloo stared at the wall clock. After ten seconds of zoning out, she registered the time.

“Five to two.”

“…Back to work.” Rumble shakily got to his hooves, almost falling into her. She caught him with one of her downy wings.

“Gimme a kiss, stud.” She crouched to be at Rumbles height. They made out, deep and long, Rumble’s tongue dominated by Scootaloo’s now larger one.

“And one for the kids,” Scootaloo said, breaking the kiss.

Rumble planted four kisses on her bulging side. He smiled when he felt a hoof press against his face.

“Won’t be long now…” Scootaloo patted her baby bump. “Hey, I’ll see you later at home. Make sure you’re on time, ‘cause this momma’s making a lot of food tonight.”

“You eat like a horse,” joked Rumble, getting a light punch to his shoulder. They opened the office door and exited.

The bright sun made them both wince. They stepped out into the open sky, and despite the relatively warm weather, their coat hairs stood up on end. It was understandable—they could feel the sticky heat behind them warming their rears.

The weather team was working suspiciously hard. And also hard were a number of the stallions, whistling to themselves while looking away from their boss.

“Brag about it,” Scootaloo whispered in Rumble’s ear. “I totally would.”

Rumble laughed. He brushed his wing along her side as she nipped his ear. She spreading her wings and jumped off the cloud, gliding back to Ponyville.

The Big Family

1 ½ Months Later (Full-Term)

“I’m glad you agreed to host the Summer Sun Celebration this year, Twilight,” said Princess Celestia. The two of them walked side by side down the streets of Ponyville, wearing their best Princess Smiles™. “I worried you might have trepidations after the last time Ponyville hosted.”

Twilight laughed, a hoof behind her head. “T-Trepidations? Me? Of course not! Why would I have anything like that?”

Celestia gave her a look.

A bead of sweat formed on Twilight’s brow. “...Mayyyyyyyybe I was a little nervous at first, but I got over it, honest! I just needed to remember what else happened besides Nightmare Moon returning.”

Celestia nodded. “Which was?”

Twilight looked over at a statue that’d been erected in the town square. Six mares stood on the points of a six-sided star, tall and proud as they watched over Ponyville.

A proper smile formed on Celestia’s lips. “You’ve all come such a long way.”

Twilight beamed. “We’re not the only ones. Ponies are getting married, starting careers, building whole new lives for themselves! It’s been amazing to watch fillies and colts I knew start families of their own.”

Celestia was about to reply, but then something caught her eye—two somethings, rather. The first was a male pegasus the size of a Saddle Arabian, standing head and shoulders above all the ponies around him. He’d just been given two jumbo-sized ice cream cones from one of the vendors. And the second something was the recipient of the second cone, an even bigger pony than him! She was an enormous,familiar-faced mare, standing a good two heads taller over him!

“Who…” Celestia squinted at the gigantic duo. She was positive she’d never encountered either of them—she would’ve remembered that! “Who are those two ponies?”

Twilight looked. “Hmm? Oh! Heh, speaking of starting families… Remember about fifteen years ago, I started something called ‘Twilight Time’? I think I told you about that...”

Celestia nodded. “You did.”

Twilight’s tone turned wistful. “That’s Scootaloo, one of my three little mischief makers. The stallion she’s with is her husband, Rumble. They’ll be welcoming their own little quartet of troublemakers any day now.”

Celestia’s eyes widened. She hadn’t seen from their angle, but now she saw that Scootaloo was IMMENSELY pregnant. Her swollen womb was the size of an overinflated medicine ball, so big that she could’ve been carrying a fully-grown stallion!

“C’mon! Let’s say hi!” Twilight led Celestia over. “I wanna introduce you.”

Dimly, Celestia let herself be navigated through the parting crowd. Ponies bowed as they passed, the typical murmurs and whispers of awe following in their wake.

“—hit the spot. Could definitely go for another—Twilight!” Scootaloo set down her ice cream cone. “And, uh… Princess Celestia! Also hi!”

Rumble swallowed his ice cream so fast he got a brain freeze. He dropped down into a bow, motioning for Scootaloo to do the same.

“Oh, knock it off.” Twilight fluttered up, giving Scootaloo a hug. “How’re you feeling? Still doing alright?”

Scootaloo flashed Twilight a smug grin. “Of course! What, you thought I’d start slowing down? Puh-leeze.”

Twilight laughed. “You’re right, I shouldn’t have assumed. You’ve got this all the way.”

Scootaloo stood up a little straighter. “Can you thank Starlight for casting that Permanency spell for me? I never got a chance.”

It was a rare thing for Celestia to be speechless. Then again, it was rare for her to encounter a pony several inches taller than her. Scootaloo was a veritable avatar of maternity, every inch of her brimming with vim and vigor. Her shiny coat, her solid legs and chest, her luxurious mane, her glowing face, her warm eyes. Her oversized barrel was stretched taut like a drum, her pregnant belly stretched down well below her knees.

“Let me introduce you to my old mentor.” Twilight gestured to Celestia. “You’ve heard of her, haven’t you?”

Scootaloo waggled her eyebrows. “Mmmm… nope! Can’t say I have. Nice to meet you, Twilight’s Mentor! Wow, your wings are so pretty!”

Celestia remembered herself. She looked up at Scootaloo (a welcome change), offering her hoof. “Nice to meet you, Scootaloo. And you, Rumble! Congratulations on your upcoming family—you’re going to have your hooves full.”

Scootaloo shook her hoof. “Don’t worry, we’ve got it covered. It might be a little crazy for awhile, but we’ll handle it.”

“We’ve uh, got a pretty extensive network to help us,” Rumble managed. “The hardest thing might be sorting through all the ponies who’ve volunteered.”

Scootaloo perked up. “Oh! Twilight, that reminds me. I’ve been meaning to ask you, do you know anything about fertility spells? We were thinking about looking into that in a few months.”

Twilight cocked her head. “Why?”

Scootaloo exchanged a look with Rumble, who simply shrugged. “Well… Rumble and I decided a long time ago that we want a big family. We’re in a really good place right now, and considering how well I handled this pregnancy, we figured there’s no harm in being… y’know, efficient.”

Twilight raised an eyebrow, but said nothing.

“We don’t really have anything holding us back.” Scootaloo gestured to herself, then her smooth, heavy paunch. “I got pregnant with these four by luck, but that’s not gonna happen again. The odds of it happening to begin with were nuts!”

Twilight’s mind whirred with calculations. “I… don’t think you even want to know what the odds of conceiving quadruplets twice in a row are. You’d have a better chance of lightning striking the same spot four times in a row.”

“Exactly,” Scootaloo said. “So if we wanna have more than one foal at time, we’re gonna need some help. We’re open to looking into multiple spells if there’s more than one, but from what I’ve read, a lot of them are really compatible with the one that’s permanently on me now. Does that sound about right?”

Twilight didn’t say anything right away. Instead she whispered something to Celestia, who wore a pensive expression.

“...Yes,” Celestia said slowly. “But, you’d need to pass a thorough examination before being allowed access. You’d need to demonstrate you two can support the amount of children you intend to have financially, emotionally, physically, and socially. I understand you want a big family, and you certainly have that right. But if you want magical assistance to conceive more than one child at a time…”

Scootaloo thought for a moment, sharing a few quiet words with Rumble. After some back and forth, they turned asone to Celestia.

“We’ll do it,” Scootaloo said.

“Just let us know what we have to do,” said Rumble.

Celestia summoned a quill and parchment, writing out some instructions. “You’ll be pleased to know that you should be able to do most of the testing here in Ponyville. Some of it, though, will need be done in Canterlot or Cloudsdale. Potentially, you could get it all done in as quickly as a month… but it could also take as long as a year.”

“Come and see me once you have all the appropriate recommendations,” said Twilight. “I can authorize the spell and arrange to have it cast on you.”

Scootaloo took the parchment with a huge smile. “Awesome! Thanks a lot!”

“But what exactly would the spell do?” Rumble asked. “How does it work?”

Celestia turned to him. “I’m afraid there’s no spell currently to guarantee a multiple pregnancy. The spells we have only increase your chances to various levels of potency. It’ll also depend on how well your genetic material responds to the magic.”

Twilight’s eyes flickered to Scootaloo’s heated waterbed of a womb, then to Rumble’s fat sheath and heavy nuts. “You... likely won’t need much. I bet a Level 2, mayyyyyybe a Level 3 Fecundity Ritual would be enough. I’m not sure how many you’re foals you’re looking to have at a time—”

Scootaloo waggled her eyebrows.

“—but I think that’ll get you good results.” A blush formed on Twilight’s face. “ALTHOUGH, that doesn’t mean I’m going to go easy on your paperwork! I’m going to make sure you two don’t overwhelm yourselves, okay? You both have foal fever bad. I think you should take a few months to see what it’s like with four before committing to more.”

Rumble scooched closer to Scootaloo. “We appreciate that, Twilight. You’re right, we might find that four is all we can handle, but for some reason… we don’t think that’ll be the case.”

Scootaloo smiled. “Call it a mother’s intuition.”

Twilight looked back up at Scootaloo. She looked so different now—from a small, scrawny athlete to a colossal feminine beauty. Her body had been reshaped into a maternal marvel, and she was thriving from it all, the excitement glinting in her eyes. Scootaloo had a new presence about her, too, a calm, serene air that put Twilight at ease, reminding her of her own mother...

“If you pass all the examinations,” Twilight said. “I’ll perform the spell on you myself. Deal?”

Scootaloo squee’d. “Deal!”

They talked a bit more for a few minutes before parting ways. Scootaloo and Rumble watched the closing ceremonies for the Summer Sun Celebration, then made their way back home.

“It may not be easy to pass all that testing,” Rumble said. “Princess Twilight can be a hardass when she wants to be.”

“I know.” Scootaloo put a ginormous orange wing around him, like a soft, feathery tarp. “But I also know we’ll get through it. Trust me, we’ll be on the fast track to the biggest family in Ponyville before we know it!”

A lopsided grin formed on Rumble’s face. “Maybe we’ll get lucky and you’ll get pregnant with even more than four, eh? Then the spell will make you even bigger.”

Scootaloo closed her eyes, her wingtip stroking his sheath. “We can only hope.”