“Ugh,” Dash groaned. “You have no idea how much this sucks.”

“Sucks?” Applejack said. “Now, you listen here. This might be the best thing that ever happened to us.”

“Yeah, you’d say that.” Dash flashed Applejack a scowl. “You’re not the one who has to drag around a belly nearly your entire freakin’ weight all day.”

Applejack chuckled. She had a point. “Alright,” she said. “You got me. I think y’look great, though.”

“You’re just saying that,” Rainbow Dash said. She eyed her big, swollen stomach warily. “Meanwhile, I’m the one swelling up like a balloon.”

“Maybe y’are.” Applejack grinned, snuggling against Rainbow Dash’s side. The bed creaked slightly under their weight. Applejack alone was a fairly muscular mare, but Dash’s current state added a lot more weight to the equation. Her big, rounded stomach bulged obscenely between her legs, pushing out above her like a miniature blue mountain. It wobbled a bit above the two of them, overshadowing them both with its size. When Applejack laid her hoof on it, she could feel it pulsing, warm with life—which, admittedly it was, given that it was carrying their foals.

All half-dozen-plus of them, according to Nurse Redheart.

Rainbow Dash squirmed, mumbling incoherently as the weight of her pregnancy bared down on her. “Seriously! This thing is awful. It’s started to drag against the ground when I walk. You hear that? Drag. Against the freakin’ ground. And I feel like a blimp—or at least some kind of hot-air balloon! There’s almost more belly than me at this point!” Rainbow groaned, her hooves massaging her pregnant stomach gently. The foals squirmed inside of her, filling her with their burgeoning life. When you told me how big you’d get me, I didn’t think it’d be anything like this!”

“Aw, sugarcube.” Applejack squished her cheek against Rainbow’s, patted the side of her belly with her hoof. For a second, she thought she could feel one of the foals kicking against her weight, and a hot, proud feeling surged in her chest. “To be honest, I think you’re much better-lookin’ this way.”

“You serious about that?” Dash asked. She tilted her head toward her marefriend, cocked an eyebrow. “What’s that supposed to mean?”

“Nothin’.” Applejack elbowed her playfully. “Just that I like to see our foals growing inside of you.”

“You do now,” Dash said sarcastically. “I’m this big, and we’re only six months in. AJ, Redheart said that there at least seven foals! We don’t even know how big I’m going to get. For all we know, by this time next month, I’ll be so big that I won’t even be able to walk—not like I can fly now—and you’ll have to carry me around in a wheelbarrow!”

“Oh?” Applejack said, half-teasing. “That don’t sound too bad. I like you big.”

Rainbow Dash prepared a retort—and then cut it off, flushing madly. “Chubby chaser,” she mumbled, her cheeks a bright red.

“Naw.” Applejack leaned over and kissed her on the cheek. “I just like that there’s more of you to love.”

She had one hoof wrapped around Dash’s shoulders, hugging her close. With her free one, though, she began to idly stroke the stiffening stallionhood between her legs. When Twilight had given it to her—well, them, really—as an anniversary gift, she’d thought of it as little more than an extra toy. Oh, how wrong she’d been.

After all, an Apple always wanted to start a family.

She loved seeing Rainbow like this—all big and round and hot and bothered. It turned her on like nothing else. And given that her endowment was, according to Twilight’s fancy books, at least, in the upper range of size for stallions, there was a lot of her to get turned on. She just softly rocked her hips back and forth, her muscled flanks sinking into the mattress as she lovingly caressed her growing erection.

She snapped back to attention. Dash was talking again.

“Well...I guess,” Dash said, her cheeks still red. “And I like the attention. It really does feel pretty nice. It’s just...geeze, AJ, you saw my binge last night. These cravings are getting worse.”

“You’re a hungry mare,” Applejack chided her. She poked Rainbow’s middle, and chuckled when it gurgled back at her. “You’ve got a family to feed.”

“Ice cream and chili, AJ! Ice cream and refried-bean chili. As a topping. What the hell?” Dash flopped her head back—or at least tried, given that her massive, foal-filled belly was currently pinning her down. “And I loved it. I downed every last bite. And I still wanted more.”

Applejack let her hoof fall from her stallionhood—which by now was nearly fully stiff, a whole nineteen inches of throbbing stallion meat—and reached up to pat Rainbow’s swell. “Well, we gotta keep you fed,” she said, grinning. “You’re a growing mare.”

“You’re just saying that.”

“No way, no how.” Applejack scowled playfully. “I love how big your belly’s gettin’, but that ain’t all. I love how it wobbles beneath you, but I like even better how big and plump your flank’s gettin’.” She grinned lecherously, her hoof roaming down to give Rainbow’s rump a squeeze. Rainbow blushed even harder, but then moaned softly as Applejack worked her plush rear. “Everytime you turn it around, it shakes like the devil, and I make sure to get myself an eyeful.”

“Not in public, though,” Dash choked out, “right?”

“Oh, it sure as hay does it in public.” Applejack grinned at her, then nuzzled into her cheek. She stroked Dash’s overgrown Cutie Mark, feeling the other mare’s coat depress lightly beneath her touch. “Every stallion, every mare in all of Ponyville can see you like this. And they all know that you’re all mine.”

She turned her head on her pillow so that her lips were just centimeters away from Rainbow’s ear. “And that ain’t even the best part.”

“Oh, really?” Dash said. “And what’s that supposed to be?”

“Your hips.” Applejack’s lips brushed against Rainbow Dash’s tufted ear, her hoof tracing lazy circles across her side, and the pregnant mare shivered with delight. “Mmm, your big ol’, wide-stretchin’, foal-bearing hips. I ain’t seen any Apple mare with a figure like you’ve been puttin’ on, Rainbow, and I gotta say, it impresses me almost as much as it turns me on.”

Dash squirmed, though it seemed more to get comfy than out of any real discomfort or awkwardness. “Really?”

“Really,” Applejack said. She began to massage Rainbow’s womb, even as her other hoof stroked her growing erection. “Can’t even begin to tell you how much you go ‘n turn me on.”

“Puh-lease,” Dash snorted. “Like that’s not what got us into this whole mess?”

“Mess?” Applejack said. She drew big, lazy circles across Rainbow’s rounded middle. As taut as it was, there was a certain give to it—firm, she decided, yet squishy. There was a feeling of warmth to it, of life, and it gave Applejack an electric, tingling feeling to snuggle her fondly. “Oh, I’ll say it’s a mess. But it’s our mess.”

She nuzzled against Dash’s muzzle; Dash, though rolling her eyes at her “sappiness,” gave in and nuzzled back. For a flash, their lips touched; Rainbow Dash’s tongue poked through, then darted back. Applejack came away with a smirk. She licked the upper side of her lip.

“It is,” Dash said. She grunted. “Still, though. I really turn you on like this? I’m freakin’ giant!”

“That you are, sugarcube.” Applejack just kept rubbing Dash’s stomach. She’d turned on her side now, so that she could more comfortably spoon with her. If, coincidentally, that happened to grind her stiffening erection against Dash’s swollen belly, so much the better. As she massaged, her hoof came across a bump—Rainbow’s belly button, long since popped from an innie to a big, rounded outie from the foals inside her.

Applejack grinned toothily, her hips jerking against Dash’s side. A splash of pre from her stiffening member splurted on Dash, matting her coat with the salty, sticky liquid. “You’re full of Apple foals. You got the kind of fertility in you that most mares can only dream of. Family’s what Apples do—how could I not like it? It gets me goin’ hotter than a rattlesnake out in the desert.”

Dash groaned, then chuckled. “Is that your rattlesnake I feel poking against my side?”

“It might be,” Applejack said, a shit-eating grin on her face. “I ain’t spillin’ nothin’.”

“Except your balls,” Dash scoffed. “But geeze—I kinda like it, too. At first I didn’t really like how hard flying was, but...well, it’s kinda nice being so big. So huge. Every day I wake up, I feel so full, like I’ve swallowed a pair of watermelons—and then I see this beach ball staring down at me, and I remember what’s happening to me.” She chuckled, blushing slightly. “Never really saw myself as the pregnant kind of mare, to be honest.”

Applejack rocked Dash’s gargantuan belly from side to side, listening to the gentle sloshing of amniotic fluid within her marefriend’s womb. The heaviness, the hugeness of Rainbow Dash’s new figure was overpowering. Her feminine musk, driven to new heights by her pregnant state, was like a wave crashing over Applejack’s senses; even lying down on the bed, her foal-filled belly towered over them both.

“It ain’t forever,” Applejack said, in what she hoped was a reassuring tone. “Though I hope your flank stays this squishy when you’re finished.” Rainbow Dash stuck her tongue out at her.

“In the meantime, though…” Applejack’s eyes drifted up to the ceiling, a grin crossing her face as she fantasized. She kept rocking Rainbow’s belly back and forth, the grin growing wider whenever she felt one of the foals kick. “You’re gonna keep stuffing yourself bigger and bigger to feed our foals. You’re gonna start gettin’ your teats nice and big, and full of milk. Your hips are gonna get even wider, your flank’s gonna soften, and I’m gonna be there, every day, watchin’ you become the best Apple mother Ponyville’s ever seen.”

She heard an odd sound, listened. Her grin widened when she realized what it was: Rainbow Dash was panting, softly. If she had to, she would’ve bet the farm that her marefriend’s legs were starting to tremble, a heat beginning to grow between them.

She gave Rainbow Dash’s belly button a light squeeze. It filled her hoof wonderfully, and she liked to imagine it getting even bigger as Rainbow Dash grew.

Now there was an idea.

“Eeyup,” Applejack said. “You’re gonna keep gettin’ bigger and bigger. You think your belly’s touchin’ the ground now? You’re gonna need that wheelbarrow—and more. Six? T’ain’t nothin’. By the time they’re ready to come out, it’ll look like there’re at least twelve in you, with a belly so big and full and fertile that any mare in Ponyville would die in envy.”

Rainbow Dash’s panting was becoming faster, more intense. Her hips were starting to tremble, her flank shaking atop the mattress. Applejack saw a tiny bead of sweat roll down her forehead, saw her eyes fixate on a particular dot on the ceiling. Applejack smirked. Now for the finisher. Still stroking her nearly hard shaft, she kept talking, keeping her voice low, sultry, inviting.

“Nice and big,” she said, eyes half-lidded, her voice growing hypnotic. She gave a soft grunt, squishing Dash’s belly. A moan burst from Rainbow’s lips. “Get a paunch bigger than anypony’s ever seen, all full of my cum and foals. You’re gonna keep growin’ until you’re the biggest mother any mare’s ever seen, full of foals and milk and food and spunk, your belly swellin’ bigger and bigger until there’s nothin’ else but to—”

A hoof over her mouth cut that thought short. Rainbow Dash was glaring at her, her bright crimson eyes burning with fire.

“Fuck me,” she snarled, sweat rolling down her forehead. “Now.”

Applejack smirked and pushed Dash’s hoof away. “You sure?” she said, teasing. “Thought you were ‘fraid of makin’ a mess.”

“Shut up. Now.”

It was easy enough for Applejack to hop herself up and onto her haunches. Admittedly, with her pregnancy, it’d be a lot harder for Dash to do the same, but even with a pair of bowling-ball sized nuts dangling between her legs, Applejack only grunted as she heaved up into a seating position. From there, she had only to roll over onto her hind legs, settling back on her thighs as her erection slapped up against her stomach.

“Mm—mm.” Applejack grinned at Dash’s magnificent swell. Even now that she was sitting, it was still just about eye level for her. “Now there’s a sight.”

Dash whined. “Come on AJ. Put it in.”

“Aw, c’mon, sugarcube.” Applejack smirked evilly as she nudged her hips a little bit forward. “I gotta get in the mood, first.”

Rainbow Dash’s marehood was just barely visible under her mountain of a belly—even from her current position, she could see how puffy it was. It was big, swollen, and winking rapidly. A few strands of clear, sweet-smelling juices dripped from her eager cunt, staining the quilt below. She hadn’t been kidding when she’d said she needed it now.

“In the mood?” Dash snorted. “Puh-lease. I saw the size of that thing—no, felt it. You’re totally fuckin’ hard right now.”

“Maybe,” Applejack said. Her stallionhood was incredibly stiff. Topping out an oversized nineteen inches, it reached up to her chin when she was sitting down. With her nuts as full as they were right now—she hadn’t jerked off in more than a day, and with Twilight’s libido spell still working on her, she usually needed to cum at least thrice daily—it was a surprise that she wasn’t leaking more. As it was, a steady stream of pre was leaking from her swollen tip, dribbling down the side of her shaft and mixing with Dash’s juices on the blanket. “I just gotta see my way around first. Take in the sights.”

Rainbow Dash groaned as Applejack slid her length gently between her swollen teats. They poked out between her legs, each one nearly five inches in diameter, and only looking to get bigger as time went on. They folded comfortably around Applejack’s girth, squeezing it between their surprisingly heavy weight.

Applejack exhaled, closing her eyes and savoring the sensation of Rainbow’s soft, squishy milkbags pressing around her tool. She was hard—incredibly so—but Rainbow was soft, so soft. Every thrust pressed the top of her flare a good inch into Dash’s swollen, pregnant belly, the taut skin giving slightly beneath the pressure. Once or twice, she felt something kick back at her erection, and her arousal flared up tenfold.

“Mmff,” Applejack grunted, jerking her hips. Titfucking had never really been an option before Dash’s pregnancy, but now, it was one of the most amazing feelings in the world. “Gosh, Dash. I just love how big you’re gettin’.”

“And how big I’m gonna get, right?” Dash grunted as well. She had her hooves stretched around her belly, struggling to get them to meet in the middle. Hugging her pregnant gut to herself, she softly massaged her tight-stretched coat, cradling the foals inside. “It’s all ‘cause of your fat dick that I’m like this, anyway.”

Applejack grinned, a drop of sweat sliding down the back of her neck. “I ain’t gonna argue that,” she said. Tracing her hooves over Dash’s plump flanks, she took a moment to appreciate the new size of Rainbow’s Cutie Marks—each one was easily twice the size of her own, if not more. She thrust her hips forward again; her shaft seized up, splattering a healthy glob of pre over Dash’s bare fur. “All ‘cuz I know how much you like feelin’ full. Gettin’ all stuffed up with a big—”

Dash moaned, long, low, and hard.

“—fat—”

Dash was panting again, sweat rolling down her forehead in rivulets.

“—meaty... stallion... cock.”

“Okay!” she gasped. “F-fuck! Just...just put it in already!” Her legs trembled, her eyes dilating.

“We-ell,” Applejack drawled. “You sure ‘bout that, Dashie?”

“Yes!”

“Well, then.” Applejack pushed herself onto her hind legs, using Dash’s girth to balance herself. Her shaft slapped against the insides of her thighs. It was drooling even more heavily when she lined it up with Dash’s puffy marelips, rivulets of pre running down the sides and onto the carpet. She pushed her hips forward, just a smidge, so that her massive flare was prodding against Rainbow’s entrance. “Y’all asked for this.”

And then she bucked her hips forward.

Rainbow Dash let out a wordless cry of excitement and pleasure, longing mixed with fulfillment, all mixed up in one deliriously happy moan. Applejack’s shaft slid right in, her massive tool shoving its way past Dash’s clit and poking up against her womb after just the first seven inches. But that was only halfway.

Applejack grunted. Truth be told, she’d wanted this as much as Dash. The sensation of her warm, soft insides around her own marecock drove her absolutely mad—and her nuts as well, swelled up fatter with the penetration alone. As she pulled back, her incredible womb weighing against Rainbow’s swollen crotchboobs, she could feel Rainbow’s fat nipples pressing against the weight of her stallionhood even as her own generous balls knocked against her knees.

“Oh, geeze, Rainbow,” Applejack panted. She bucked her hips forward, and Rainbow Dash let out another moan as a full ten inches—just up to the medial ring—was shoved inside of her. “You feel so good...”

“Yes,” Rainbow Dash groaned. She let out a squeal when Applejack pounded her again, almost forcing her fat marecock directly into her womb. “Yes. Yes!” Her massive, pregnant belly rocked from side to side as every one of Rainbow Dash’s limbs thrashed, trembling with the energy of sex.

Sweat was pouring down Applejack’s face. She’d bitten her lip, all of her concentration focused inside of the hot, tight hole that was Rainbow’s marehood. Her arousal was growing stronger, mounting to an inescapable conclusion. Every thrust sent her a bit deeper, Rainbow’s tender flesh rubbing across her shaft, squeezing and teasing her girth, until Applejack was snorting, whinnying with every jerk of her hips.

Soon, the pressure at the base of her shaft was unavoidable. Applejack tossed her head back, snorting. She could feel her massive, cum-filled nuts swelling up even further, Twilight’s magic filling them up as her lust and need mounted to a peak. She feel them churning, their plump, massive depths sloshing every time they slapped against Rainbow’s fat flank. She needed release. She was going to release, right inside the mare she loved.

“R-rainbow,” Applejack choked out. It took every bit of her concentration to spit out the words—it felt like her consciousness was being drawn up into a tube at a base of her shaft, locked into place within her coming orgasm. “I’m—I’m—”

And Rainbow Dash just threw her head back, her mane flying wildly around her, and screamed, her thighs convulsing wildly as her own climax hit her.

That was all Applejack needed. With a roar befitting Big Macintosh, she plunged herself deep, deep inside Rainbow’s marehood, penetrating deep into her womb. Her hips slapped against Dash’s flank, her balls smacking against Rainbow’s milk-filled crotchboobs as she bottomed out, her fat marecock flaring up until it could hold back no more.

Her orgasm hit like a tidal wave, all of the seed that she’d been building up exploding out of her. Rainbow was wailing, thrashing, overcome by the intensity of both her own orgasm and Applejack’s. Applejack’s mind was awash in a sea of white, lost in the sensation of spilling her cum—her seed, her essence—deep inside Rainbow’s most secret place. Her hips was bucking wildly, her cock convulsing as she spilled her load inside Dash’s already full womb.

It might have been full—but that didn’t mean that there wasn’t still room for it to grow.

Applejack let out a muffled snort as the first ropes of seed burst from her shaft. “Ooh,” she groaned, her hips bucking forward. Cupfuls of seed erupted inside Rainbow, coating her walls and contents inside with her spunk. The intoxicating scent of her seed mixed with Rainbow’s own tangy, sweet aroma, filling her lungs with every breath.

Dash was crying out now, groaning as Applejack filled her to the brim. Already, Applejack could tell that she’d reached capacity with the amount of cum she could hold—but Applejack and her overfull nuts had no intention of stopping now. Rainbow was already filled with a lake of Applejack’s jizz, but Applejack’s continuing orgasm was about to make that an ocean.

Shot after thick, gooey shot erupted inside of Rainbow’s warm depths, the pressure and volume soon forcing her belly to balloon outward. Rainbow Dash had both her hooves on her belly, cradling it as it grew upward and outward. Applejack was sweating, grunting as she unloaded inside of Rainbow’s womb. More and more of her seed, gallons now, filled up Rainbow’s warm insides, forcing her belly to expand even further to accommodate it.

It had been an incredible belly before, but now it was truly magnificent. Its taut curves had been softened by the gratuitous amounts of Applejack’s thick, sticky cream. It pushed up even higher, filling up with more and more cum even as the sides folded over Dash’s lap and hips. Rainbow was panting as Applejack pushed her to new, incredible sizes. Her belly was gigantic, her stomach sloshing and churning audibly with seed as Applejack pushed more and more inside of her. By now, it was easily as big as a full-grown mare—if she’d tried to walk with it, her hooves would have dangled uselessly down its sides. And still, it grew.

Applejack gritted her teeth, riding out the last wave of her orgasm. She cried out, muffling the sound, as her fourteenth shot burst from her tip. Each shot of jizz was bigger than the last, filling Rainbow’s belly with more and more of her spunk. She had to have cum nearly a dozen gallons by now, and still, her magically-filled nuts looked only two-thirds emptied. She could feel Rainbow’s belly growing beneath her hooves, the soft flesh of her coat sinking beneath their weight.

Her shaft swelled up inside Rainbow’s tight passageway, bulging hugely—and then released a last flood of cum. Rainbow Dash moaned, long and loud and low, as her cum- and foal-filled gut overflowed her hooves, growing far past what the rest of her body could reasonably contain. Applejack just grit her teeth, squeezing her eyes shut as she let Rainbow’s winking marehood milk the last quarts of jizz from her nuts.

And then, finally, she was done.

With a grunt, she flopped forward—right onto Rainbow’s stomach. It squished out beneath her, wobbling like a water bed. Applejack groaned, hugging her marefriend’s gigantic belly and rubbing her slowly softening erection against it.

Rainbow took a shuddering breath. “Ugh,” she mumbled. “Fuck, I needed that.” She groaned, hefted—or at least tried to heft—her massive gut toward her. It jiggled a bit, even wobbled toward her for a moment, but was far too big and heavy for her to even make an impact. “Holy fuck I’m big.”

“Mmff.” Applejack groaned into Rainbow’s coat. “I like y’all big.”

“So you told me,” Rainbow said. “Thanks, AJ. I—ngh—I needed that.”

“Anytime, sugarcube,” Applejack said, somewhat sleepily. Now that she’d cum, her afterglow was starting to wash over her. Her eyelids suddenly felt very heavy. “I like makin’ you feel good even more than I like gettin’ you big.”

Dash chuckled and smacked her pregnant gut. “And you even get to have both of ‘em. Not that I’m complaining.” Her belly wobbled, its cum-filled depths sloshing from side to side. Applejack winced as she felt one of the foals kick from inside. She smiled as she imagined them swimming through an ocean of her seed.

Applejack snuggled into Dash’s gut. She nuzzled into Rainbow’s fur, burying her snout in it. “Mm.”

“Hey, Applejack?”

“Mm-hm?”

“Is it possible to get double-pregnant?”

“Double—I don’t think so, sugarcube.”

Dash chuckled. “Figured. Still, I can’t even imagine how much bigger I’d be if this load brought on a whole ‘nother batch of foals, too.”

“Mm,” Applejack mumbled. “Can’t say I don’t like the idea.”

“Maybe we can ask Twilight.”

Applejack yawned. “Maybe,” she said. She snuggled against Rainbow Dash’s belly, her eyes drifting shut, and her hooves wrapping around it. As she closed her eyes, she thought she could feel Rainbow’s belly swelling beneath her, expanding as the foals inside her grew, getting bigger, healthier, stronger.

With a full family beneath her, and a happy marefriend beneath that, Applejack let herself drift off into a catnap. Just a short rest, she told herself, after such a powerful peak. And besides, she thought, she liked listening to Rainbow’s belly gurgle and grow beneath her.