Twilight eyed herself in the mirror. She was frowning.

Of course, at a glance, one would be forgiven for questioning why, exactly, she looked so unhappy. Even before her ascension to alicornhood, Twilight Sparkle had never exactly been unattractive. With her new pair of wings, though, had come a whole new host of benefits: another ten inches in height, which brought her from an average five-foot-seven to a looming six-foot-five; a pair of G-cup breasts that pushed her shirts out so far that her cleavage always looked like it was ready to spill out of her bra; and a toned, powerful body with barely an ounce of unnecessary fat on it.

At least around the middle.

Twilight’s eyes weren’t aimed at her breasts, no matter how big and soft they might be. No: she had eyes only for her ass, a pair of big, round butt cheeks that stuck out a good three inches behind her. She gave one a tight squeeze, and bit her lip when she felt a solid handful of assflesh jiggling in her palm.

After her, ah, growth spurt, she’d needed to replace her entire wardrobe. Prin—Celestia had been kind enough to replace her entire wardrobe. Her every pair of panties, it seemed, had to be super-sized to fit her full, lascivious figure. That would have worked had it not been for another set of assets that had come in shortly after Twilight had grown her wings.

A thick, fat horsecock was nestled against her crotch, its weight warm against her groin. Twilight shifted her weight, then mentally groaned as both her ass and her package bounced playfully. Where her butt threatened to spill over the backs of her thighs, her new member rested comfortably upon her pair of heavy, swollen nuts.

Twilight fondled them for a moment, then bit her lip even harder when she felt the small lakes of cum sloshing inside. When she pulled her hand away, it was all but dripping with her own musk; she had to resist the urge to hold it close to her nose and sniff the scent of her own sex. As it was, her marehood, positioned just behind its male counterpart, was already dripping in arousal as Twilight’s meaty member throbbed atop her fat nuts. But this was no time for personal pleasure. She still had to finish getting dressed.

And that, of course, was the real cause of her displeasure. The pair of panties that Celestia had gotten her should have fit perfectly. But they didn’t just have to fit around Twilight’s big, juicy ass—her flaccid shaft alone, as thick around as her forearm and accompanied by a pair of heavy nuts sloshing with her seed, filled it out rather nicely. Forced around the entirety of the well-endowed alicorn’s waist, her pair of panties better resembled a piece of lingerie than proper underwear.

Twilight’s frowned deepened as she eyed her figure in the mirror. She’d been taking measurements lately, on a hunch, and was sure that her stallionhood and rear were both bigger than they’d been just a week ago. If this kept up, it wouldn’t be long before this pair of panties snapped just like the last one had.

With a sigh, she set about putting the rest of her clothes on. Thankfully, she’d been able to get a bra in her size—though she suspected she’d have to start going custom-made, like Fluttershy, before long—and her shirt settled comfortably over her breast shelf. Getting her pants over her chubby rear had been a bit of a challenge, and she’d had a heck of a time fitting her rather sizeable bulge comfortably into the crotch of her workout pants, but she’d gotten there in the end. With a grin and a thumbs-up to her reflection, Twilight turned and jogged out of her room, her ass and bulge bouncing happily all the way.

They didn’t stop bouncing, of course.

As she set about her morning jog, Twilight’s grin steadily became more and more forced. Not because of the jog itself—she loved feeling the burn in her muscles, feeling her heart and legs throb in time with one another—but because of the way her other parts seemed to enjoy the jog along with her.

Her breasts heaved up and down with every impact of her running shoes on the path. Her sweat, gathering on her neck and forehead, slid down into her canyon-crack cleavage, leaving the space in between her breasts clammy and moist. She could feel her boobs sliding up and down against one another as she jogged, her enormous jugs happily squishing, jiggling, and bouncing in time with her feet.

That wasn’t the only thing she had to worry about, though. Her big, bouncy ass—Rainbow Dash had once jokingly called it “downright fat”, and Twilight had spent the next fifteen minutes blushing as red as a tomato—just wouldn’t stop being, well, bouncy. Her tight-fitting workout pants clung to the contours of her ass like plastic wrap, enunciating every curve, concealing everything while hiding nothing. Every step just bounced her butt even higher, her massive cheeks folding over the back of her thighs going down, and jolting up even higher, flapping against the bottom of her back on the way back up. Altogether, her boobs and butt made a rather unsubtle symphony of smacks and sliding slaps, her well-endowed rear happily rubbing against itself as it moved.

Twilight eyed the other ponies who’d also come out to the park—some jogging in the opposite direction, some sitting on the benches and watching her go by—and flushed a cherry red. All of them could see her massive, undulating body in almost all of its glory. Her too-tight workout gear was the only thing keeping it from being outright indecent—but as she felt the string of her panties tightening around her generous hips, she swallowed, hard.

The bulge in her crotch was the centerpiece to the rest of her body. It stuck out in front of her by a good five or six inches, a lumpy sphere of warm, flopping mare-meat. Twilight bit her lip as she felt the bottom of her flaccid schlong rubbing against the tops of her sloshing, heavy nuts. She couldn’t afford to get a boner. Not here. She didn’t want to have to replace another pair of jogging pants, especially after the last pair had ripped right down the left seam, absolutely drenched in her, ah, fluids.

Thankfully, she made it through the rest of her jog without incident. Still, she found herself making a conscious effort to ignore the stares of the ponies she passed as she began her second lap around the park. She passed a fellow jogger—”On your left,” she called helpfully, squeezing her massive body around him—and almost winced when she glanced back and saw his eyes opened wide, his gaze directed entirely at her fat, bouncing ass. The next stallion she passed was a short one; the top of his head didn’t even come up to her underboob, and his belly was roughly even with her bulging crotch.

Twilight loved her new body—really. She just wished that it didn’t have to be so obvious.

Thankfully, her second lap finished her jog off, and she gratefully made her way back home. By now, her throbbing shaft had slipped out of her panties and was now lying, almost casually, against the inside of her leg. Her pants bulged obscenely around it, making it seem as though she’d slipped a half-sized third leg inside. Twilight all but sighed in relief when she pushed the door to the library open and slipped—she had to bow her head a bit to get inside, but she tried to ignore that—into the main room.

“Morning, Twi!” Spike’s voice came floating out from the kitchen. Soon, the dragon himself came marching into the library, a chef’s hat perched on his scales and a tray of muffins in his claws. “I just finished this batch—thought you might be hungry!”

Not quite an adolescent but no longer a baby, Spike was around the same height as a tallish stallion colt—which put him eye-to-crotch with Twilight’s throbbing bulge. She grinned awkwardly as his cheeks rapidly colored.

“Or,” Spike said quickly, blinking. He did a one-eighty-degree turn, his arms held stiffly in front of him. “I’ll, uh, just let you take care of that first.”

Twilight’s cheeks flushed red as well, though a thankful smile crossed her face. “Um. Sure,” she said. “But those do smell delicious.” Her stomach grumbled as the scent of cinnamon-encrusted apples crossed her nostrils. Since her “growth spurt,” she’d found herself eating more and more to keep up her figure—Celestia herself, a nine-foot amazon with breasts bigger than Twilight’s head, easily put away enough food to feed a family of four every meal—and so she’d found Spike’s cooking to be an amazing gift.

Spike chanced a look back over his shoulder. He grinned sheepishly. “I’ll put out a dozen or so on a plate and leave ‘em out for you, okay?”

“Sounds great,” Twilight said. Then, her cock giving a sudden, attention-grabbing throb, she turned and all but ran upstairs.

Twilight’s breathing was heavy as she undressed herself. Though her wide hips and protruding bust made it difficult to get her clothes off, the slick sweat on her coat made it a bit easier to slip them off. She squeezed her eyes shut and grunted as she struggled to get her shirt over her head—and breathed out when it came off with a “slap-slap,” her big breasts smacking against her chest from the impact. Sighing, she flung her stretched and sweaty shirt down to the floor and got to work undoing her bra clasp. That, at least, wasn’t too big.

She let out a noticeable groan when she slipped her pants off, letting her thighs, ass, and balls ooze free from their cloth prison. She felt even better when she slipped her thumbs underneath the tight string of her panties and pulled them loose from her throbbing crotch. Those few inches of freedom were like a breath of fresh air to her hardening shaft—which by now was two-thirds of the way down her thighs and not even fully hard yet—and it happily bobbed up a few inches more until it hit the bottom of her hand.

Carefully, making sure not to snap it, Twilight pulled her panties’ back string out from her massive ass and gently slipped it down her legs. She let out a sigh when the front slipped over her cock, letting it bob free until it was pointed up by a good forty-five degrees.

She turned on the shower, let the water get warm, and slipped inside. The hot water was a blessing to her sore, sweaty limbs; the warm soapy water felt wonderful on her heaving bust and throbbing stallionhood. With a surge of arousal, Twilight lathered up her palm with a good dollop of conditioner—getting off with soap made for the opposite of fun, but there were other ways to have a good time in the shower—and got to work.

In what seemed like no time at all, her throbbing cock erupted in a mass of white. Twilight choked on her saliva, propping herself against the shower wall as her shaft blasted spurt after spurt of thick, creamy spooge into the base of the shower. Her pent-up, musky balls shuddered and lurched as her orgasm sent shocks of pleasure trembling through her spine. Her knees and breasts quivered, and she found herself biting down moans as rope after rope of jizz blasted out from her flared tip.

After a good twenty seconds of cumming, Twilight’s orgasm finally came to an end. Her sizeable chest heaving, Twilight let her free hand fall down to her crotch. She curved it around her weighty, grapefruit-sized balls and moaned again as she felt how heavy they still were. She’d be doing this again before the day was out.

That was when she noticed the warm water lapping at her ankles. Twilight blinked, then glanced down at her feet. Her thick ropes of spooge had gathered around the shower drain and had, predictably, managed to clog the holes instead of flowing down with the water. The water level just keep rising as more and more of her shower was blocked by the remnants of her overproductive orgasm.

Blushing furiously, Twilight switched the water off. Her horn glowed as she retrieved a pair of towels and a mop from the bathroom closet. Dammit, she told herself, her softening cock lying flaccid against the inside of her thigh. Not again.

Once she’d cleaned up her mess and finished her shower, Twilight slipped into some more comfortable day clothes—Luna had helpfully informed her that baggy pants were unbecoming for a princess, but Twilight needed to cling to some semblance of propriety—and went downstairs. Spike’s muffins were as delicious as her nose had promised, and she’d polished off a good dozen, and was making her way through another half-dozen when he asked her to pick up some things in town for dinner.

So that was how she, the Equestrian Princess of Friendship, found herself pushing a shopping cart around one of Ponyville’s newest marketplaces. It turned out that a local princess was a good tourist attraction, and a few new businesses had moved in to take advantage. At least it made doing the shopping as easy as it’d been in Canterlot, though she still only bought her apples from the Apple farm.

On her way in, she passed a familiar face. “Oh, hi, Big Mac!” she said brightly. Mac blinked up at her and grinned.

“Howdy, Princess,” he said. “What brings you out here?”

“Just some shopping for Spike,” she said, shrugging. The motion had the unfortunate effect of pushing her cleavage a few inches forward, and she quickly let her arms relax. That only let them bounce from the sudden release of support. Thankfully, Big Mac kept his gaze relaxed on her face, rather than her chest, which was all the more welcome for the fact that his gaze only came up to her chest nowadays. “And you don’t have to call me Princess. Just Twilight is fine.”

“Eeyup,” he said, nodding. “Welp, be seein’ you.” He gave her a little wave and plodded back out of the store.

As he went, Twilight couldn’t help her own wandering eye. Built from a lifetime of hard work on the farm, Big Mac’s body was bulging with muscle, perfectly toned and sculpted. His thick arms were all but bursting through his sleeves, and his shoulders flexed through the back of his shirt every time he swung his arms. Twilight found her gaze following his big, flexing rump, and wondered what it might feel like to caress that big, muscular ass, her fingers tracing down his cheeks as her stallionhood—

She instantly flushed and turned back to the store. Her breasts squished slightly against the handle of her cart, but she ignored the feeling of her erect nipples against the cold metal. She also did her best to ignore the snapshot she’d caught before he’d turned around: A big, fat bulge hanging in a pouch between his legs that reached—or even surpassed—the size of her own.

As she walked into the store, she was suddenly aware of the heavy, sloshing balls swaying between her legs, of the big, hardening shaft—Don’t think about it!—slowly pushing against her waistband, and of the bulge she’d seen at Big Mac’s crotch that even surpassed them in size.

She walked, bowlegged, through the entire produce section. Not thinking about it didn’t help. In fact, it only made things worse.

As she made her way through the aisles, Twilight did her best to ignore her steadily growing erection. Instead of snaking its way down her pants, its positioning actually managed to push it up. Twilight stifled a groan as she felt her swollen cock pushing its way past her waistband, making her pants incredibly tight around her hips and waist.

Ignoring it took her mind off of sex, for the most part, but the image of Big Mac’s big, muscular ass just wouldn’t go away. Her boner just kept going, throbbing as it pushed right past her lean, cut stomach. Twilight shuddered with barely suppressed delight as her head just barely brushed against her underboob, and had to steady herself on the cart as she felt the underside of her flare first squeezing through her cleavage.

By the time she’d gotten out of the produce aisle, her throbbing shaft had pushed all the way through her cleavage. Her prominent, flared head was clearly visible, and actually rubbed against the bottom of her chin every time she bent down to place an item in her cart. Twilight noticed that ponies were staring, and her ears flushed.

She thought about going to the bathroom and, ah, relieving herself. Then again, with the amount she’d put out that morning, she really didn’t fancy clogging the toilet and having to explain to the manager why, exactly, his bathroom was overflowing with ripe, virile princess spooge. So she just kept walking, trying to look as innocent and nonsexual as possible as her two-foot-plus tool drooled a steady stream of precum down her shaft. By the time she reached the frozen items, the front of her bra was nearly water—that is, cumlogged—by the sheer amount of pre that had been dripping down her shaft from her aching, needy balls.

Once she’d crossed off every item on her list, Twilight pulled up to the cashier with her full cart. She gave a mental sigh of relief. Her throbbing stallionhood felt just about fit to burst. The sooner she finished up here, the sooner she could get back home and relieve herself. Her fat, aching balls just throbbed even harder at the thought of that wonderful, blessed release.

“H-hello, Princess,” the cashier stammered. The poor little stallion just about came up to Twilight’s cleavage, and so couldn’t miss the massive, flared horsecock rising up below her muzzle. It throbbed as the bottom of Twilight’s chin brushed against it, and he watched as a spurt of precum larger than any one of his own loads splattered noisily against the top of her bust. “Grocery shopping today?”

It was an obvious, awkward question, with an obvious, awkward question. Twilight did her best to grin down at the flustered little stallion as he went about removing her items and noting down the prices.

Though he was focused, ostensibly, on the groceries, the cashier couldn’t help his eyes from darting up to Twilight’s rather impressive chest. With every breath, her chest pushed her breasts a little bit up and forward, causing her massive, soft breasts to engulf her cock with a few more inches of her supple titflesh. When she breathed out, they fell down again, releasing their grip before continuing to masturbate her enormous shaft.

More and more pre drooled from her cock as Twilight bent down to start bagging her groceries. She bit down on a moan and almost came right then and there, the motion forcing her cock even further between her soft breasts as her productive balls swelled and churned with even more seed. She chewed on the inside of her cheek, struggling to hold back the mounting pressure. It was a losing cause. Every time she bent over, she titfucked herself again.

She whimpered softly, the cashier blushing even further as he finished checking the groceries and realized that she wasn’t even bagging anymore. Instead, she was placing the bags back into her cart—but now, almost by reflex, her hips were giving an involuntary jerk every time she bent over and thrust her cock even further through her pillowy breasts.

Twilight bent down to pick up the last bag—and let out a muffled cry as her enormous stallionhood seized up, the soft, warm embrace of her pillowy mounds around her throbbing erection finally driving her over the edge. Her cock throbbed madly as ropes of spooge as thick as her fingers erupted from her lurching flare.

She felt her warm, heavy nuts spasming as they forced what felt like liters of spunk up her shaft and out into the air. Her cock throbbed again and again as her pent-up, impossibly full balls released an equally impossible amount of jizz over her groceries, herself, and the poor cashier.

Leaking pre had given way to massive gobs of spunk, which erupted from Twilight’s vigorously pumping shaft. Her hips jerked wildly, thrusting her enormous tool up into her cleavage again and again as she struggled to milk herself dry. A tidal wave of spooge, it seemed, was flooding forth from her massive flare. Twilight felt her head falling back and let out a long, throaty moan as shocks of pleasure rolled up and down her spine, the sweet euphoria of release overcoming her mind.

As the last thick, gooey spurts of cum erupted from her tip, Twilight felt some bit of lucidity coming back to her. She groaned with pleasure, and, slowly, opened her eyes to a scene right out of Hearth’s Warming Eve.

The entirety of the cashier’s desk and her own cart were absolutely covered with her spunk. Thick gobs of her cum slowly oozed down the sides of the desk, and a furtive glance upwards showed that a sizeable amount had actually wound up on the ceiling. The poor cashier looked like he’d been the victim of a particularly brutal snowstorm.

Twilight felt like she wanted to sink into a hole and die, especially when she felt her happy shaft slowly going flaccid and slipping down her chest. Her cheeks burned with the rest of her as she slowly levitated out her purse from her bags. She felt the entire store’s eyes on her, burning holes in her back.

“This should cover the costs,” she blurted, dumping her entire wallet onto the desk. “Sorry about your uniform.” With that, she grabbed a hold of her cart and all but ran out of the market, her drained balls slapping lightly against her toned thighs with every leap.

Thankfully, she was able to clean off most of her spooge from the groceries before Spike saw them. She wasn’t sure whether he noticed it or not, but at least he didn’t mention the extra-salty taste of the stew that night.

Next time she went out, she resolved, she’d make sure to beat off before heading out the door.

Twice.

Next Chapter: Tight [Cadance] [Hyper Ass] [Wide Hips] [Shining] [Big Penis] Estimated time remaining: 8 Minutes