All Grown Up

Applebloom opened her eyes blearily. Sand from sleep still clung to her eyelashes, blurring her vision. She rubbed it away, then stretched out, yawning—

—and paused, blinking, when she felt her cold feet sticking out from underneath the blanket. In fact, it didn't even feel like they were on the bed anymore...

She sat straight up in bed. A loud ripping noise filled her ears. Suddenly, Applebloom was aware of the cool morning air brushing against her back. She stared down at her nightgown—or, more accurately, at the twin mounds of flesh rising against her chest, and blocking most of her lower body from sight.

Hardly daring to breathe, Applebloom threw off the covers. A totally new body greeted her. She was able to rest her arms on her bust—which had grown noticeably bigger, each former-C cup boob more than a triple-M by now. She pulled them in, watching her much larger biceps flex with awe. She'd always been fit from working out on the farm, but her arms were huge! Not even Big Mac had bigger arms than hers!

She shivered, then glanced down past her chest toward her crotch. A thick, straining bulge greeted her. Her nightie had been pushed up to around the halfway point of her thighs, which were now twin tree-trunk-sized slabs of size and muscle. With that, the bottom of her panties had become visible: overstretched, overstuffed, and just barely musky.

Applebloom stared with barely constrained glee at the enormous bulge between her legs. She tentatively prodded it with a finger, then shivered when she felt a wave of pleasure dance up her spine in response. All the other things could be explained away, but this... This meant that the day had finally come!

She swung herself out of bed, then flinched back when she saw the ceiling rush down toward her. She held herself still, hardly daring to breathe, but the tops of her ears were still over a foot away from the top of the eight-foot room. Still, she felt an indisputable need to hunch over as she moved from her bedside to her door-mounted mirror.

Another surge of glee filled her when she realized that she couldn't even see her head in the mirror; the highest thing she could make out was her pair of massive breasts, which jiggled lightly when she prodded them. Her hands went a little lower, rubbing softly against her new washboard abs while her arm flexed bigger and bigger by the second. Lower still...

Her palm brushed across the gigantic pouch that her new equipment had made in her panties and nightgown, and Applebloom nearly moaned out loud. She couldn't see it yet, but she could feel it: an enormous, warm shaft filling up her overstuffed clothes with more than a foot of sheer virility. She tore off her nightie—it wasn't hard; the fabric all but shredded around her massive, heaving bust and her bulging arms—and goggled at the massive package that was now filling out her underwear.

It was a long, thick shaft that rested comfortably above her new nuts, angling downward over them toward the ground. Breathing out softly, Applebloom brushed her fingers against her nutsack, a nervous smile darting across her face when she felt them sloshing with unspent cum. Each one had to be the size of a cantaloupe, at least! And that stallionhood...she estimated it at around a good ten inches long. Soft.

She'd been waiting two years for this. "You'll get it," Applejack had told her on her sixteenth birthday, towering above her, her own stallionhood straining hard against the fabric of her pant legs, her rippling muscles bulging through her skintight shirt. "All Apple women get it. You'll just have to be patient, s'all."

Applebloom was nearly trembling with excitement. She'd done her waiting. She'd been more patient than anypony had known. And finally, her waiting had paid off. She almost dashed out of her room to show everypony before she realized that she had nothing on but a chemise and a pair of panties that covered only a fraction of her thick, deep-yellow stallionhood.

She checked the closet. None of her normal clothes even came close to fitting her. A quick measurement with the tape measure she’d hidden away a year or so ago showed her to be six feet and nine inches tall on the dot. A big mare like that wasn't going to have a lot of success wearing clothes that had belonged to a five-foot-eight mare just hours before. She frowned, pondered her choices, then threw on an extra baggy pair of sweatpants that she found toward the back of the rack. Sure, they were tight as hell around her thighs, calves, and waist, and only went down to the tops of her shins, but at least she was able to struggle them on with only a little difficulty.

As for tops... She eyed her collection of tops skeptically, then decided to keep with her current sleeping top. Sure, it might be stretched to its limits around her new broad shoulders and her enlarged breasts, but she had her doubts about getting it off, let alone getting anything else on. The family would just have to deal with seeing her nipples poking through, she decided with a blush, at least until she could borrow some clothes from Applejack

Applebloom's oversized breasts bounced against her chest as she made her way to the kitchen. Her top, which somehow had managed to contain them, covered little below her nipples, and most of her bust was free to flap about with even the slightest motion she made. Taking note of her new size, she eyed the lower-seeming ceiling and the walls warily. The hallway seemed tighter around her, as though moving a single inch to either side would cause her arms to scrape against the wallpaper. She took that thought and savored it, thrilling at her newfound size.

She was also somewhat intimidated by it, though. She needed to show—and talk to—Applejack.

Her bulge swayed from side to side as she walked, her heavy footfalls shaking the wooden floors. She could almost feel the unspent seed sloshing about in her massive, melon-sized balls.

Applebloom took a deep breath and stopped before entering the kitchen. She could feel her chest inflating impressively as she took in air, could feel her muscles bulging just a little bit bigger and tighter. Okay. She could do this. With a cheery grin plastered on her face, and a steadfast decision to ignore the air she could feel against her nipples through her shirt, she turned into the kitchen. Her broad shoulders brushed against either side of the door, and she had to duck a little to get through, but she made it in.

"Morning, y'all," she said cheerily. The kitchen's ceiling was, thankfully, much taller. "How're y'all doing?"

Applejack was at the table; Big Mac at the stove. Both paused and looked up to greet her—and up, and up, and up. Big Mac's jaw dropped. Applejack's eyes widened, and a massive grin spread across her face.

"Applebloom!" Applejack said. She stood up from the three chairs she'd laid out by the kitchen table to hold her own bulk. She drew herself up to her full height—eight foot ten, just over a foot taller than Applebloom now—and rushed over to her little sister. Her own massive bulge and bust bounced happily as she strode over, and the floor shook even harder beneath her near half-ton weight than it had for Applebloom's mere four-hundred-fifty pounds.

Applejack seized her little sister in a bearhug—although, Applebloom noted with a grin, not so much littler anymore. For what seemed like forever, Applejack had always towered over her: a massive giantess with a bust to die for and a bulge in her crotch bigger than her torso. But now, instead of staring at the top of her sister’s rippling abs, the top of Applebloom’s head just barely reached Applejack’s shoulder. Applebloom felt a rush of pride and power. She'd been waiting for this for too long.

Applejack echoed her thoughts. "Golly," she said, squeezing Bloom tight. "I told you, Bloom! I told you, you'd just have to wait." She pulled herself back, still holding Applebloom by the shoulders. Her big hands squeezed her tight, and her grin spread even wider. "And see? It all paid off, didn't it?"

"You bet!" Applebloom was suddenly very aware of the fact that Applejack's own nipples were brushing against the tops of her breasts—and that they were also very much erect. She also became aware that Applejack's larger crotch bulge was rubbing against the top of hers, her larger shaft and balls nearly obvious in her sister's too-small pants. A soft blush spread across her face; she hoped Applejack didn't notice. "I just woke up this morning, and...well." She shrugged helplessly, admiring the way her upper arms flexed and bulged with even that simple motion.

"Oh, I am so proud of you, AB." Applejack slapped her on the back, then turned to Big Mac. Mac was still standing at the stove, jaw agape. "See that? Our little sister finally grew up!"

Big Mac eyed Applebloom with a mixture of shock, awe, and slight shame. He'd always known, intellectually, that as an Apple stallion, his sisters were destined to outgrow him. But he'd gotten his name for a reason, dammit. When Applejack had gotten her spurt years back, it'd been somewhat easier to accept. But Applebloom? The baby? He eyed her from head to toe, particularly her bulging thighs and arms (they had to be at least two or three inches wider than his), her bigger bust (he began to sweat nervously), and her absolutely incredible bulge.

If she’d woken up as tall as Applejack, then maybe it would have been a bit easier to accept. But as it stood, she was barely—barely—three inches taller than he was. Suddenly, the mare he’d grown so used to seeing come up to his pecs was looking down on him, even if just by a little. His hands trembled, and though he forced a smile onto his face, there was one thought on his mind: As a stallion, Big Mac suddenly felt very, very inadequate.

"E-eyup," he said, somewhat shakily, then quickly turned back to his cooking. He let out a quick curse when he saw that the eggs he'd been making had burned. He dumped them out into the trash and got out a new batch.

"Hey, Mac," Applejack called, seating herself back on her triple-seat by the table. "Better make that a double order. Or a triple, even. This filly's gotta be hungry."

"I'm not a filly," Applebloom groused. "My birthday was last week."

"Sure," Applejack said. She winked, and punched Applebloom on the thigh. "You'll always be a filly to us. Right, Mac?"

Another gulp. Another "ee-y-yup!" from Big Mac. He hurriedly cracked another ten eggs into a new, giant mixing bowl and got out another three pans. Somehow, he thought he'd need them.

"I am feelin' kinda hungry," Applebloom admitted.

Applejack chuckled. "'Course you are. You're a growing mare, after all. Why, you're already bigger than I was after I got my first spurt—by a good few inches! And hold up there, AB," she said as Applebloom made for a chair. "You're way too big for that one. Pull up a second one. Should hold your weight better." She patted her own muscular thighs, then glanced meaningfully up at the ceiling. Even sitting down, Applejack was a good six and a half feet tall, big enough to be only three feet away from the ceiling in here. And the Apple family kitchen had a tall ceiling.

"Oh," Applebloom said. A blush hit her cheeks, but it wasn't just embarrassment. There was pride there as well. She grabbed another two chairs, arranged the three as best she could, and plopped herself down in them. Her massive, muscular ass covered most of two, and she was happy enough when they all creaked, but still managed to hold her weight. She eyed the table—she had to spread her knees wide around it, because there was no way they'd fit underneath anymore, but the tip of her bulge just barely pushed underneath the tabletop, and the bottoms of her massive breasts still rested on the surface. She decided to leave it for now.

"Oh, I am just the proudest," Applejack gushed as Big Mac set down an enormous bowl of eggs, bacon, and toast in front of Applebloom. "You're already so big—and you're just gonna get bigger! Why, everypony at the next Reunion is just gonna go nuts over you. Even big cousin Red Delicious! Oh, it's gonna be great."

Applebloom was nodding vacantly as she ate. She had other things on her mind: namely, Applejack’s own big body. She’d noticed other mares and stallions since she’d finished puberty, but she’d never really noticed Applejack in that way. It made sense, after all; she was her sister. But now, with her new, bulked-up form, Applebloom found her eyes roving hungrily across Applejack’s straining bust, her towering form, that massive bulge that bobbed at her crotch whenever she took a breath.

She felt a certain kinship with her, now, now that they shared the same body. For so long, Bloom had felt like she’d been left behind—as though Applejack was an unattainable ideal that she would never reach—but now, today, she felt as though it was finally within her grasp. And so, something told her, was her sister.

She blinked quickly when she realized that her own massive bulge had started to chub up beneath the table. Applebloom quickly squeezed her legs together, then nearly moaned when the only thing that accomplished was stimulating her already sensitive balls further.

She had to get her mind off of this. Had to keep herself from visually molesting her sister’s larger body. But, as her pants started to audibly stretch and groan from the strain of holding her swelling erection, and as the tip of her bobbing stallionhood began to brush against the bottom of the table, Applebloom realized that she had to change the situation, and fast—before she broke out a massive boner right in the middle of the kitchen.

“Clothes!” she blurted out, interrupting Applejack. “I, uh, I need clothes.” Her cheeks instantly flushed.

Applejack paused, then gasped. “Dang it! I knew I’d forgotten somethin’. Well, shoot—there’s no way you ain’t about to tear your way out of those tiny old things. C’mon.” She stood up, the floorboard creaking under her enormous weight as the giant pouch holding her package sagged against her thighs. “You can use some of my old clothes.”

Applebloom was more than happy to follow her out of the kitchen, ducking underneath the doorframe behind her as Applejack nattered on about old shirts and pants. Meanwhile, Big Mac busied himself with cleaning up the remnants of a meal large enough to suffice for a full three of his own breakfasts. He had a bit of a start when he found the trail of dripping pre Bloom had left behind her, though. He just shook his head and set back to cleaning up after his larger siblings.

Getting the clothes turned out to be easy enough. “A mite tight,” Applejack observed, watching Applebloom try on her first post-spurt clothes, “but a sight better than those doll’s clothes y’had on before.”

Applebloom readily agreed.

She went through the rest of her day in something of a haze. Her chores were easier—she found herself lifting bales of hay with one hand that she would have struggled to handle with two just the day before. She savored the sensation of feeling her ears brush against the top of the barn door; loved looking down on the cows instead of up. Sure, she was a little clumsier at times; it seemed that every hour, her limbs flung out a little bit farther than before. But that was what happened after all growth spurts, right? You had to adapt.

But Applebloom wasn’t done growing—not by a longshot. Hour by hour, she crept upwards into the air. Six feet, nine inches became ten, then eleven. Soon, Applejack’s clothes (which had been tight on her already) were straining to hold all of her in. The pants only came down to the middle of her shins; her sleeves stretched and groaned every time Bloom’s massive biceps flexed. And the bulge in her crotch was getting tighter with every passing hour, which did absolutely nothing to nullify the growing volume of warm, sloshing cum in her heavy balls.

Finally, a bit sweaty, and a bit grimy, a seven-foot-two Applebloom ducked down into the front door of the house and made her way down the hall. Big Mac stared as she went past; was it his imagination, or did it look like his eyes just barely came up to her neck? With a nervous twitch, he shoved the thought out of his mind and went back to tidying up the kitchen.

Applebloom fell onto her small bed with a groan of satisfaction. After a hard day of work, it felt good to relax like this. She had a bit of trouble struggling out of her now-smaller clothes, but once she got her muscles—and massive package—free, she exhaled a sigh in relief. She flopped back onto her mattress, the springs groaning beneath her weight, and frowned when she felt an unfamiliar throbbing against her chest.

She peered over her bust, and her lips formed an ‘o’. A fat, throbbing erection stared her right back in the face, her swollen cockhead brushing up lightly against the underside of her breasts. Applebloom’s lips twitched, and she reached down and let her hand brush against her shaft. Instantly, her whole body trembled, and a generous glob of pre spurted out onto her breasts.

Breathing a little bit harder, Applebloom checked that her door was closed. Surely nopony would mind if she did a little bit of...experimenting with her new equipment, right? Just to get some release. She felt her heavy, churning balls weighing against the insides of her thighs, then felt them suddenly retract against her body as she began to stroke her shaft in earnest.

With a cry, she let her hips buck forward. Rope after rope of thick, creamy cum erupted from her tip. Her balls were sloshing, churning as they expelled pints and pints of her seed from her flared head. Applebloom’s vision was flashing white as waves of pleasure word through her; her entire body jerked as more and more spooge erupted from her tip, splashing onto the ceiling and floor.

Finally, her orgasm ran out. With a groan, Applebloom flopped back onto her bed and let the warmth of release spread through her body. With her legs and arms hanging off the sides of the bed and the two massive pillows of her breasts resting on her chest, Applebloom slowly drifted off to sleep.

All through the night, she slept on, unaware of the pops, creaks, and groans that filled her quiet room. Hour by hour, her body inched along her mattress, growing, demanding more and more size, overflowing her bed. Her massive member throbbed steadily on her stomach, leaking a steady stream of precum. And through it all, the growing Applebloom stayed happily asleep, dreaming of Applejack.