Cadance awoke next morning, feeling out her entire body as she slowly got out of bed. Having remembered what Velvet had said, she was finding it very enjoyable fondling around her body in the morning, feeling more comfortable than ever in her own skin. Walking over to her standing mirror, she observed her massive body and saw her progress in full.

Overnight, she'd let all of the snacks she'd eaten the day before digest and form into more squishy pudge, adding to her body's growing mass. She also got into the habit of midnight snacking, going for loads of spicy foods and other gas producing morsels to follow Golden's advice of building up her tolerance. Cadance was honestly surprised she was able to get back to sleep with the torrent of noise her belly was making trying to break down the snacks, but Spoiled Rich told her that once you get used to it, it was basically like self made white noise. As she looked at herself in the mirror, Cadance felt as though she was comparable with these beautiful models in this little world of plus sized mares.

“Maybe I could do some runway modeling for fat fashion.” she chuckled to herself, before a thought struck her memory, remembering how she was planning to make plus sized mares a more common thing, she thought of Rarity.

“Rarity did say big mares were on the rise nowadays. Perhaps I could help her start on a plus size clothing line for her boutique?” She wondered aloud. Her stomach bubbled, triggering another memory.

Velvet had told her that listening to your belly's noises was an old fetish of hers and many other mares of her time. Maybe she could reignite the flames and get it back in style to do so. Her own gut was a noisy one as is and she was advised to do it as well.

Speaking of which, a grizzly growl roared from her belly, getting a giggle out of her. “Oh, aren't you a noisy one? You like being all consuming of my thoughts, don't you?”

She drummed her fingers on the surface of her belly and listened to it retort in roars and rumbles, all rippling the surface as she did so.

“Velvet told me that a bubbly belly is something that she and her gal pals like to embrace back in the day… But, it does still seem out of my repertoire at the moment. What to do…” She thought about it while rubbing her belly, the softness of it acting like a stress ball to use for thinking. Just then, an idea popped into her head. Looking back into the mirror, she saw her aunts by her side, hands on her shoulder as if showing her the way.

“That's it! I'll go back to Canterlot and ask my aunties for help! They shouldn't be busy today, so a little surprise visit wouldn't hurt. Plus, they could give me the rundown on what all of this bubble guts glory was about back then! Brilliant!” So, she went and found a giant trench coat in her closet to cover herself as to travel incognito, then with a fedora and some shades, she headed off to Canterlot. In her haste, she didn't grab breakfast, but that would prove to be of no issue as the upcoming conversation she'd have with her aunts would require her to be a little less than full.

–

A Few Hours Later, In Canterlot…

Cadance strode her way through the streets of the capital city of Equestria, minding herself as to not reveal her identity or her recently plumped up physique. With the trend of stuffing oneself to the limit rising to levels not thought possible, the conversation of the increase of one’s weight spiked exponentially. And being that the residents of this fine city were more on the… uptight end of the attitude spectrum, the reception of the idea was less than welcomed within the inner circles of the elites. She overheard a conversation between 2 snobby mares having some tea.

“I must say dear, whatever is this world coming to?” said the blue one.

“I know, it’s shameful all these ponies are just incentivising being nothing but snobbish hogs, it’s very distasteful!” said the green one. Cadance rolled her eyes as she continued along, but hoped one day this town's attitude will change to those with bigger bodies. She'd gotten used to the snobby sort of pony after a while, her time in Canterlot as a juvenile basically desensitizing her to the whole idea of elitists complaining about the interests of ‘Common Folk’.

“Maybe one day, a big mare will be in your little elite circle.” She quietly whispered to herself. Walking out of the city limits and into the vicinity of the castle, she showed her face to be identified by the guards and asked them where her aunts would be at the time. Surprisingly, they said that they were to not be disturbed as they were engaging in ‘Important Royal Business’. But with a wink from the one on her left, she got the message and nodded as she entered the castle's walls. Walking through the halls, she eventually dropped the act and removed her disguise, handing the coat, hat and glasses to a servant who happily took them away as she continued on with her day.

As an extra layer of safety, she put on a glamour spell to make it look like she was wearing her usual royal attire to the outside eye. But underneath, she was still in her lingerie. Walking up to her auntie Celestia's door, she lit her horn and instead of knocking, sent a psychic message inside to get permission to enter. A few seconds later, the door unlocked and Cadance invited herself inside. There she found Celestia and Luna in their lingerie with lots of food, drinks, potions, and giggling with each other.

“Why hello Cadence, I must say, you have gotten larger since we last met.” pointed out Celestia.

“Yes I have, thank you for noticing. So this is the ‘Important Royal Business’ you had to attend to?” Cadance chuckled.

“We must admit, this little trend that has started back up in recent times has been very interesting. I say, it's very entertaining to excuse ourselves and indulge in our favorite foods.” The white alicorn said.

“I could say the same for myself. I decided to throw my first Belly Bash yesterday with a few other mothers to sort of get an understanding of how the trend worked back in the day.” Cadance said, dropping the glamour spell. “But one thing still eludes me…”

“And what would that be, dear niece?” Luna asked, wiping some cheese puff dust off her face.

“The affinity with making your belly noisy. I get the overall concepts and how to enjoy it, but how it came to be and how to master it is still not in my skill set. So, I came here to see you two on how to do that.” Cadance sat down next to them, forming a triangle and getting comfortable.

“So, you understand the trend of getting big and enjoying the lifestyle, but the image of letting your stomach ring out on purpose still brings up question marks?” Celestia asked.

“As much as I hate to admit it, yes. Even after doing it twice before with you and my other guests, I still can't see myself doing it often due to the sheer fact that I'm clueless on how to effectively do it. So, I wanted to come to the two ponies I know have been in the game for a while and exclusively focus on that aspect.” The two sisters looked at each other and nodded as they simultaneously agreed to spread the good word.

“Well, if you must know, you've come to the right place.” Luna said as she began to explain. “Many moons ago, when the trend of stuffing yourself to the brink of bursting was well in effect, ponies found it boring how they just had to be big and that was it. They all wondered if there was a way to find more enjoyment in their achievements. Luckily, they did.”

“The trend on making your belly noisy was something that shined out from the dullness of just eating large quantities of food. It added somewhat of an additional layer of pleasure to it all. Mares all over would privately sneak away to their most secluded hiding spots to indulge in the fetish, often choosing spicy snacks and bubbly drinks before that potion you've been using was created and eventually given to the public.” Celestia added.

“I can attest to the increase in popularity being more prominent in the dream realm. Ponies with bellies as big as a large water balloon took over the majority of what I saw, the roars and rumbles of their midsections creating a lot of noise as the night went on.” Luna said. “In order to truly master what you are seeking, you must go further than just a little noise. You must be willing to push your internals to the limit, creating such noises that no pony would ever think of.”

“Think of your stomach as not just something to pack full, but something to ignite and stir up. Everything you eat will have an effect, but you must go for the very aggravating substances to truly gain a sense of pleasure. If you do choose to go down this path, be prepared for your belly to make constant noise. Because between the three of us… mine and my sister's bellies are so loud, we make rooms shake with them as if we have a second Royal Canterlot Voice within our guts.” Cadance nodded and took all of the knowledge down to remember for later. She had to really push herself this time, no holding back.

“Okay, I understand what I have to do. Let's do it.” She said confidently. The sister's smiled and accepted their niece's request, showing her the mountain of unusual snacks they had.

“These were personally made by us to cause as much disruptive force within our bowels as
possible. Join us in our partaking in our little symphony, and you will not regret it. Trust me, these bellies will show you that much. Observe.” Luna obtained a red ball from a bowl on the floor. Placing it on her tongue and giving her niece a wink, she swallowed and let the ball drop into her belly. Once the ball made an audible splash in her belly, Luna began jiggling her belly. Sloshing of great magnitude came from the blue ball of fat as she shook it side to side. She stopped suddenly in the middle of it to give her belly a slap and as she did that, a growling akin to a Grizzly bear filled the room.

The sound was tame for a starter, fairly low growls emitting from Luna as she rubbed her midsection.

“Wow, I had no idea you took this so seriously. You make your own food to aggravate your insides?” Cadance asked.

“Indeed. As I said, our bellies can be so loud that they can shake rooms. And the only way we can do that is by manufacturing our own little ‘Tummy Treats’ to get them going. And we are going to make the same deal to you. We'll make you into a master of making Belly-quakes yet, my dear niece.” Celestia said.

“Belly-quakes? Is that what you call them?” Cadance giggled.

“Yes, like making an earthquake with your belly.” Luna replied as she then got another of the red balls and handed them to Cadence, which she then did what Luna did by putting it on her tongue, and swallowing it and letting it drop into her body.

“Good, now when sloshing your belly around, try not to force it too hard, try to naturally move and slosh it around like you would with yourself in a bathtub.” Advised Celestia, to which Cadance started the sloshing her belly around with her hands, which was a bit of a struggle given how big her belly was and how overall huge she was, but she persevered trying to keep a smooth natural movement in her belly whilst also applying force, afterwards she let her belly go and smacked it with both her hands. To which, her belly then moaned like 2 whales, giving a little rumble to the room.

“Hmmm… perhaps your belly is too weak to handle one of these just yet. You may need a more gradual start than this.” Luna said. “I say we build up on this, letting your insides naturally acclimate to higher volumes of noise before going again. We could make a little game out of it.”

“A capital idea, sister. We'll all eat one at a time, listening to our bellies in turns and see who's got the gumption in their gut as we eat more volatile items.” Celestia said. Using her magic, she placed a total of six bowls in-between them with different colored balls within them. The colors were blue, pink, red, green, yellow and white.

“Each of these orbs will cause a different reaction within us upon swallowing. We'll choose one bowl at a time and take one orb each from said bowl. One at a time, we'll eat them and listen to the noises they make of us. This will not only serve as a fun little game, but it will also give Cadance the tolerance boost she needs to reach our level. So, shall we begin?” Celestia asked. The two other princesses nodded and went about their business. Up first was the bowl of blue balls, each taking one.

“These should only elicit some small disturbance to begin, a good starting point. You first, sis.” Celestia said, her demeanor becoming more casual. Luna obliged her sister's request and swallowed the dark blue ball that matches her coat. As expected, the blue ball gave little reaction as small moans broke out from within her belly, not much to speak of.

“Hmm, a valiant effort. Your turn, Tia.” Celestia swallowed hers. Since her belly was smaller, the noise had much less space to bounce around the echo chamber of a belly she had and came out slightly louder. But no true progress was made.

“Excellent. Cadance, the turn comes to you.” The white alicorn said.

“Okay, here goes.” Cadance tilted her head back and gulped, the small orb disappearing down her neck and into her gut. Moans much the same to Celestia came out, but no true waves were made.

“A fair start, if you ask me. Now, onto the next batch.” By show of hands, the princesses chose the green ones.

“These should cause a stir within us. I know for a fact due to these being where I started out. Now, down the hatch.” Luna said, tossing one back. Placing her hands on her belly, she moved it around a bit. After a few seconds, her belly started to bounce up and down as it made growling noises that, if one were to listen close enough, could give just the vaguest impression of the sound of chanting.

“Am I going batty or does Luna's belly sound like it's mimicking old tribal chants from the indigenous ages?” Cadance chuckled with a mix of shock and amusement.

“I believe so, my dear niece. I must make you aware that while some of these snacks were purposely made with fine tuning, these orbs have completely random effects. We quite literally went into the alchemy room blindfolded with a few spells in hoof, played a spinning roulette to see which would be added and went nuts.” Celestia chuckled. “One of the less successful batches caused my belly to sound like a quacking duck.”

Cadance giggled at the notion of her aunt’s belly quacking. She could not deny that her aunt’s magic was the most powerful she'd ever seen or heard of. But to use it in such a humorous way? Cadance expected it more from Discord despite the comparatively minimal interactions she had with him. She and her oldest aunt soon joined in on the tummy chant and giggled a little as it died down. Then, they began to make their choices again.

“Now, which one shall we pursue next?” Luna asked.

“I say we go for the pink ones. They seem to be filled with a decent bit of mystery, so why not?” Cadance suggested, her aunts nodding in agreement as they all took one. Luna took the plunge first, swallowing the pink orb and doing the usual motions to elicit a reaction.

Within seconds, her belly started to ripple like a pond. A distinct bubbling noise came from the blue ball of fat, almost like what the sound of bubbles in a cup of milk would sound like.

“That sounds rather tame compared to the others thus far.” Cadance commented.

“Oh it may seem that way, but remember, each one of these can have a different reaction to each of us. Luna may sound like that, but what about me?” Celestia said as she swallowed hers.

After going through the steps to coax a rumble, her belly made similar ripples with a slightly deeper version of the noise Luna’s made. Her's made a noise more reminiscent of boiling water, a deeper and more violent sound than her sister's attempt.

“I'd have never imagined you two were so into this, and with such dedication.” Cadance said. “What happened to make you two so attracted to this?”

“Well, it is a bit complicated.” Luna started. “About a few weeks after I was rescued by the Mane Six, I was greeted by the most shocking sight. My once slim and sleek sister, who was revered for her looks and grace, now had a bust rivaling the size of two cider kegs and a belly so jiggly, it was almost hard not to stare. A little explanation as to why she was like this and the significance of the trend, I soon found myself gaining in much a similar fashion to my sister.”

“After Luna gained the form you now see before you, we became aware of this little… extra that came along with this secret fetish. The belly growling. Unsurprisingly, the sheer amount of food we were stuffing into our muzzles was causing our bellies to become less like silent slabs of skin and more like bubbling bulbs of blubber. The sound of our digestive noises was somewhat enticing to us, almost in a hypnotic way. Soon enough, we were both cooking up these special orbs to purposely make a ruckus and got so far deep into this little rabbit hole, we started to make our bedrooms shake as the morning hunger made our bellies rumble.” Celestia added.

“So, you two just became bored with how plain the fetish was like the rest of the world?” Cadance said, swallowing her orb.

“Exactly. Unlike you, who started off on this journey by accident and came to enjoy it, we came to revel in it and enjoy it to its fullest potential. And soon enough, you will do the same once you are able to make Belly-quakes.” Luna said before confidently smacking her belly.

“I like the way you think! But I have to ask.. are you two the only ones capable of such a feat?” Cadance asked as she shook her belly.

“Actually, no. We've been hosting secret classes on the matter. So far, Fluttershy has been our top… ‘Student’ as of late.” Celestia said.

“No surprise there with the amount of noise she could generate with her gut. But is there anypony else?”

“Just two. Pinkie Pie, which should be no surprise, and a certain fashion designer who has gotten into the trend and is now causing a shake as well.” Luna whispered with a wink. Cadance gasped at the description she was given.

“So, Rarity is plumping herself up now? It feels like just yesterday that she was advocating for more slim and sleek figures to go on the rise.” Cadance said.

“Oh, she still does. But she just chose to go a different route. She masks her need to get bigger as a modeling opportunity for a future plus size clothing line, but we both have seen how she revels in the noises and shaking she can produce.” Luna giggled. Before Cadance could laugh herself, she felt her gut bubble below. Unlike her elder aunts, her belly didn't mimic the sound of a liquid. Her's instead mimicked the sound of bubbling mud, a soupy sludge sound filling the air as her belly slowly rolled and malformed in response.

“Ooh, that sounds rather sickly. If I didn't see you down that pink orb, I'd have assumed you had indigestion.” Celestia said, almost showing concern over the reaction.

“Oh don't be such a worry wuss, Auntie. I've heard worse noises come out of Flurry Heart. Seriously, that baby practically has a cauldron inside her with the sheer terror she can produce. Never gave her Applesauce after that, nearly drove poor Applejack to tears.” Cadance giggled. Soon, they had all gotten their taste of the pink orbs and unanimously went for the white ones.

“Okay, these white orbs should give you a taste of what half power feels like, Cadence. These are a big jump in reactivity compared to the others.” Luna said, picking hers out of the bowl. She downed it, shook her belly, and waited for the reaction. Almost instantly, her belly was overrun with a mix of sounds, a groaning mixed with an almost animalistic growling filling her belly. The growling was a very low and ululating noise, making her belly shake immensely like something was trying to force its way out. It was so violent, she had to wrap her hands around her belly to get it to calm down some.

“My my dear sister. When you told me it was about time I ‘Let out my inner beast’, is that what you meant?” Celestia said teasingly, an out stuck tongue being her response before she swallowed her orb.

The white alicorn felt it churn within her for a moment before a snarling came out from her middle. A lion-like roar ripped through her belly like a bolt of electricity, shaking her insides like a vibrating platform normally used to burn off the fat that she and her fellow royals had built up.

Cadance swallowed hers and after doing the steps, she said, “Let’s see how mine reacts.” Within seconds, her belly moved around on its own, making the sound of a rather ferocious beast. The sheer volume and motion of her middle surprised her, the shaking being that of a stampede level intensity.

“Such a Titanic level of motion is almost insane at this point. Even with just the Poison Joke alone, it was a drastic change. But this… this is something else.” Cadance said, eyeing the yellow orbs with intent. “You know what? Let's cut to the chase and go for the gold! Let us consume… the yellow orbs.” She then proceeded to down a yellow orb and repeat the process. After a few seconds, her belly started to sound similar to an agitated cat yowling.

“Stepping into the deep end, are we? Well, let's get down to business then.” Celestia said, gulping hers down and receiving the same reaction. The two princesses felt the strange sensation rattle their frames violently, the sound making their bellies pulsate with vigor. Luna however, was not impressed.

“Such child's play. Please, watch as a true professional shows you how this is supposed to go.” Luna said before downing her own yellow orb. Not even letting her shake her gut, a loud groan filled the air, pushing her belly out before a wild burbling made her belly jostle in every direction. She gave a cocky smirk.

“You see that? That is what a true master can do when you stop toying around with things.” She said smugly.

“Oh, so you want to be that way? No surprise. Not like it's uncommon to hear your ego bang the drums so loudly.” Cadance said, a snort coming from Luna in annoyance. “Well, since we've run through everything else we had in stock, I think it's time we come full circle and come back to the one we started with. The red orbs.”

“Are you certain, Cadence? This orb is the very orb that causes the quakes we told you of. Are you sure you wish to take on the challenge that will forever open the floodgates of how much noise your belly will make?” Celestia warned. Cadance nodded and magically put three orbs in the air, one going to each of them.

“I have already come this far to embrace how big I am. Not much more to do besides getting used to how loud I'll be in the future. So, let's see how much of a quake we can make.” Candance then gulped down her red orb and shook her belly. Her aunts followed in her footsteps and gulped down theirs as well, doing much the same actions.

“By the way, Cadence, did you happen to see anything… different about the orbs we just ingested?” Luna said, a suspicious expression on her face.

“No… At least, I don't think so.” Cadance looked down and realized what she had done. Next to the orbs that she had been given by her younger aunt, were a bowl of red orbs identical to them. The only difference? These red orbs were glowing. “Should I be concerned?”

“Oh no no, these orbs do exactly what you wanted from them. They will still cause a quake… Two times stronger and with a delayed reaction.” The pink princess’ eyes widened and shrank to pinpricks.

“T-two times stronger?” She stammered.

“That is correct, Cadence. The orbs that you just chose are not the normal red orbs that you were given at the beginning of this little meeting. The orbs you chose are in fact what we like to call… Red Rumblers.” Celestia said with a little deviousness in her voice. “These ones are the pinnacle of what it means to cause a quake. Luna is the only one who has ever used these, her large belly being the perfectly round echo chamber to allow for maximum effectiveness. You, my dear niece, have stepped into the deep end and dove into the darkness. No turning back now.”

Cadance looked over to Luna, who was wearing an expression filled with pride and intimidation. Cadance fought back the urge to gulp down the lump in her throat, both because of her inner confidence telling her to face the facts and the passive fear of her saliva somehow making the reaction even more potent.

Staring her aunt down, she nodded silently to her, acknowledging that she had stepped into her territory and now had to take on what was coming in full. Meanwhile, Celestia had already swallowed her own Red Rumbler and held her belly in preparation.

“May the baddest belly win, ladies.” Cadance said. The silence in the room became palpable, almost as if it was gaining substance for them to physically grab a hold of. Seconds ticked by like minutes, the three alicorns trading looks between each other like cowboys in a standoff. The calm before the storm.

After a few seconds, Cadance felt the imminent approach of a rumble. She put her hands to the surface of her stomach and felt a strange bubbling inside. “What am I feeling right now?” She asked, both concerned and slightly intrigued.

“The fluid being added to your belly.” Luna said simply, getting Cadance's head to snap over to her. “You see, this orb doesn't just react with your stomach acid… it adds to it. When it landed down in that pink pouch of yours, it began generating a special flavored fluid that tastes like your favorite drink and fills your belly to its capacity and then some. It'll not only expand your insides to be able to handle even more food and drinks, but it will also make your insides so reactive, it makes it a constant noise making machine after the fact. There's a reason why my nickname in the trend is ‘Full Moon’.”

Luna then downed her own Red Rumbler. Despite her previous statement of it being a delayed reaction, hers gave an instant change. Her belly could be heard bubbling slightly, the fluid filling her up as well as Celestia, who had just gotten her reaction to kick in.

“I thought those had delayed reactions!” Cadance commented.

“Only the first time.” Luna said. “Over time, the delay shortens. It's just a little thing that happens to those who try them after using them multiple times after the first.”

“That's why I didn't get the instant release either. It's my first time, too.” Celestia said. “And just so you know, this isn't a secret we intend to keep.”

“You mean, you plan on handing these out!?” Cadance said, a lurch from her belly staggering her for a moment.

“Indeed. We started with you to show you what this power represents. We'll give you the recipe once this is over. But for now, get ready.” Luna said. Finally, the bubbling stopped. The fluid felt rich and filling inside of them, a gurgle coming out of them once they were sufficiently filled.

“So, when does it happen?” Cadance asked.

“Just a moment…” Just then, the chaos started and Luna was the first to take the hit. Her belly began to ripple with a deep gurgle, the volume growing louder as the reaction began to take hold. She rubbed it lovingly.

Cadance was about to question why Luna seemed to be treating her fluid filled belly like she was pregnant, but it had a message to bring. The room began to shake, the once innocent sounding gurgles divulging into the most bassy rumbles Cadance had ever heard.

Never in her life had she heard someone's stomach sound that loud, shake a room so violently and move so much all at once. Luna's belly rippled and rolled as her rumbles rocked the room, the snack pile next to them collapsing into a straight up mess under the shaking. Shortly thereafter, Celestia’s belly joined in.

Her gut sprang into action almost immediately, a mix of groaning and moaning filling the air as her belly jiggled. The movement was so potent that even her ‘Cider Keg’ breasts started to ripple themselves. Cadance giggled slightly at the sight. Her own aunt, who was once a slim ruler with a body even she wished she had as a teen, now had so much movement that even her chest rippled in the small manner as her belly.

Even so, she was not too far behind in this little quake-fest. Soon, her belly started to get crazy. But unlike Celestia, she was more on the bigger side in the tummy department. Her belly began to ring out in growls and roars that she had never felt before, her entire body feeling the shake like her middle was in more control than she was. From every angle, each of their tummies sang their siren songs like they were in a theatre. Their combined power shook the room like a maraca, the vibrations mixing things up as the fluid within them gained more and more reactivity.

“I’m going to say it right now,” Cadance said. “I am at a loss for words. I've never felt so out of control and in control at the same time. I feel so alive and… so enticed~”

“That is one of the perks of being an alicorn. We have the most magical potential out of any creature in life, and while we mostly use it to impress guests and defend our way of life, sometimes you have to let loose a bit.” Celestia said as their little rumbles disappeared into themselves and stopped the shaking.

“This is a true statement, Cadance. We always felt so bored with our lives, constantly having to uphold a regal mask to follow what society wants from us. Now, we get to try new things that we enjoy.” Luna added.

“You said it. I don't think I've ever felt this free from obligations and responsibilities before. It feels amazing to just let go and have a good time every once in awhile.” Cadance said enthusiastically. “So, this will have expanded my appetite by a good margin?”

“A very good margin.” Celestia added. “You will be able to pack so much more into your belly after having taken on this rare challenge. Along with that, you will be subjected to some alterations.”

“It's a natural reaction to the orb’s effects. We both experienced a dramatic increase in just how loud ours were, so you should be much the same.” Luna then leaned in and got close to her niece. “And between the three of us, you may find that your gut has a little more… ‘Personality’.”

“What? My belly? Personality? You must be joking!” The pink alicorn scoffed. But as she said that, she was proven wrong. At that moment, her belly bubbled in a strange way. The sound made her wonder if her aunt was telling some truth about that change in her.

“See? It's all in the middle. My sister and I have developed a similar symptom over the years ourselves. Watch…” Luna said before gesturing to her belly. She rubbed it softly in circles, gently caressing the blue ball before it began to moan in a relaxed manner. It was like a cat purring while being scratched. Suddenly, she stopped, placing her hands on top and waiting idly. As if reacting to her lack of care, her stomach growled angrily and signalled that it didn't like being left hanging. Luna simply giggled in response.

“This… this can't be real.” Cadance said.

“Oh, but it is and can be.” Celestia chuckled. She rubbed her own gut and got a selection of purring out of it. Not necessarily a literal purring, but a groaning that sounded somewhat close. Cadance was mouth agape at the sheer level of ridiculousness she's been exposed to in such a short time, the fact of her aunts' guts having personalities being something her brain couldn't compute. But that wouldn't stop her own belly from taking over. As the two sisters let their insides fall silent, Cadance took center stage as a gurgly gargling sound emitted from her belly. Hers sounded vaguely childlike.

“Well, I suppose I can be proven wrong. But, one thing. Why teach other ponies like Pinkie, Fluttershy, and Rarity to do the same? You two could have had the biggest bragging rights out of any mare who'd have the same physique!” Cadance wondered aloud.

“That is true, we could have had the bragging rights of being able to create a shake with just our bellies. But, we chose to share the wealth for two reasons. One, we hold ourselves not above our subjects, but alongside them. We feel no better nor any worse than the average pony. It is why our rule over the land has been so legendary for so many years.” Luna said with dignity.

“The second reason is a bit less glamorous or respectable though…” Celestia put in. “We gave them the tips and tricks for it because… We lost a bet.”

“A bet? To do what?” Cadance asked.

“Gain as much weight within three weeks as fast as possible. It was my sister and I with 300 bits VS our three proteges with 600 combined. We ended up losing after our massive lunch that would have put us in the lead had to be cut short due to a catastrophe in Time Square. Thus, we were ultimately forced to take on the role of teachers to give them the key to our newfound trick. After that, we thought it would be only fair to make more of these orbs and share it with the public. Like we said before, Fluttershy is our top student when it comes to learning how to do this. She got so good that she had a belly rumbling contest with Luna and won!” Celestia exclaimed, an annoyed huff coming from across the way.

“Wow, that's amazing! And you actually entertained the idea of having a contest to see who's belly was louder?” Cadance said with an amused expression.

“And I would have won if this one had decided to kick up enough of a ruckus!” Luna complained, looking down at her belly with disappointment on her face. In response, her belly rumbled deeply, as if telling her to get off its back. “Oh hush up, you…”

Cadance giggled at the little disagreement between her aunt and her gut. “So you ended up teaching them the same trick you taught me? What were the results?”

“Well, you already know who was the best at it. Fluttershy was honestly a wild card for us, a blank area that we had no idea was secretly a monster in pony's fur. She may come off as shy and not speak up much, but when she got her first taste of our little treats… Her guts went mad. Almost immediately, her belly was rumbling just as loudly as mine does. Surprised at the sheer power she held in her middle, we questioned her on her methods. Soon, we found a history of fast food, soda, beans, cheeses, roasted nuts and other things being her go-to for adding to her pudge. And she didn't even have to speak to say so.” Luna said.

“Pinkie Pie was another out of the box student of our craft. While nowhere near as potent as Fluttershy's reactivity, her gut still provided us with some interesting results. As it turns out, her belly has a mind of its own! Literally growling and roaring to every statement we brought up to it, even starting conversations with our bellies as if manifesting this abdominal sentience within us as well. No doubt she would be another great addition to the cause as well.” Celestia described. Cadance wasn't all that surprised at that assessment of the pink party pony. She already knew that with her abilities, she was bound to have some weird effects on anypony around her.

“Now, Rarity was a difficult case. Of course, being who she was at the time, she didn't want to admit she wanted in on our little proposal for fear of letting her more gluttonous side consume her and completely replace her elegance. But, after a little convincing…”

“And many tubs of Vanilla Oat Swirl ice cream being devoured…” Celestia interjected.

“She eventually fell to her inner desires and let herself be who she wanted to be. Her insides were about the same as yours, Cadance. Minimal reaction at first with a large build up needing to take place before greatness could be achieved. But, she managed to pull through in the end and now used her new abilities alongside Fluttershy on their spa dates.” Luna explained.

“So those three all have their reactions to your so-called ‘Tummy Treats’ and now use them to their own pleasure? Well, that gives me a major confidence boost. But about Pinkie Pie… Are you sure that her belly was starting ‘Conversations’ with yours and you're not yanking my horn?” Cadance asked with some suspicion.

“I assure you, we tell no lies when it comes to the abilities of Ponyville's premier party planner. It was just another session of using the orbs to build up her tolerance to the reaction, nothing particular about the day's events. Then, once she was considered a model representative of our little lessons, we experienced her little quirk. Her belly growled like any other big mare, deep and with much movement in her middle. But along with that, it seemed to have a certain… dialect to it. Soon enough, her belly began to lead her around and pressed itself into my sister. Her belly gurgled against Celestia's and a response came in turn. That's when they started rumbling together like they were in harmony, like they were literally taking the term ‘My tummy is talking’ and running with it.” Luna said.

“It's true. And she did it with Luna as well as me and then got all three of us going. It was so strange yet oddly funny. So, if you decide to include her in your little journey, be prepared for some strange happenings.” Celestia warned.

“Duly noted. But if Pinkie can do it naturally, perhaps I can make it happen another way myself?” Cadance wondered. She took another one of the white orbs from before and swallowed it, moving closer to her eldest aunt. Waiting for the reaction, she patted her belly patiently before the growling returned. It was a light disturbance compared to the first time she had one, but it still proved to be successful as Celestia's belly growled in response.

“It worked! And… I think they want to be together.” Cadance moved closer and pressed her belly against her aunt's, sitting side by side with her arm around her and watched the dynamic change. Their bellies rippled together like a combined ocean of pink and white, each alternating in crests and troughs.

“My my, Cadance. Who knew you had such a talkative tummy.” Celestia said. “Then again, you did always have a loud one. Even in your younger years.”

Cadance blushed at the reminder of her appetite. Luna, on the other hand, tilted her head.

“I believe I'm left out on this reminiscing of memories. I assume this is something that happened before I returned from my thousand year imprisonment?” The blue alicorn asked.

“You would be correct, auntie.” Cadance said, her and Celestia's bellies still talking to each other. “When I was a teenager, way before I even met Shining Armor, it was no secret that between the two princesses in the castle at the time, my appetite was the biggest while going through puberty. To say that I was making a ruckus back then would be an understatement. Every day, at least once, I'd have my stomach ring out in front of the staff as my body began to change. And every time, I'd turn as red as a cherry.”

“Well, that is to be expected. As an alicorn, your mana capacity and magical energy consumption is greatly increased. As such, your caloric intake has to compensate for that much energy consumption to keep you functioning. Though, if you say that even your appetite was larger than my sister's, I'd have to say I'm impressed.” Luna complimented. But as she watched her two fellow alicorns meld together in abdominal harmony, she started to feel a little jealous. With hers being the biggest, she was always used to her being the top dog. But now, she was getting overshadowed by the little tummy talk going on across from her.

“Hmpf, you two having fun over there?” She huffed, crossing her arms.

“Oh, don't tell me you're already jealous of our connection, sister. You shouldn't have anything to be jealous about! Besides, yours already talks up a storm as is with how big it's gotten.” Celestia said, poking at the blue mound Luna had for a belly. It rippled like a pond when something was dropped in it.

“Auntie Tia’s right, you have just as much of a personality in that gut of yours as we do in ours. Besides, it talks more to you than it would anypony else.” Cadance added. Luna looked down at the blue ball between her legs and rubbed it with a hand. A deep rumbling rose from the depths of her gut, waves of jiggling fat rolling over it like an ocean.

“Perhaps you're right. I do like how it seems to respond to me like a friend, it makes me feel warm inside.” Luna said.

“So, Cadance, what do you expect to do after you leave? Celestia asked.

“Well, obviously, I'm going to focus on making myself even bigger now that I'm in this full time. But as for anything else… I don't know. Maybe I might head back to Ponyville for another visit and see if Fluttershy would mind another pony in on her and Rarity's spa dates. No doubt that they will be just as big now that they've been around you two, but only time will tell.” Cadance said as she stuck by her aunts for the rest of the day. She was sure that with this little session and some new treats under her already tightening garter belt, she would be all set for whatever happened next. She wondered who else would be in on this trend, maybe Twilight or even some of her old Canterlot acquaintances might be in the know.

For the time being, she just enjoyed the feeling and sound of the increasing amounts of pleasure she was feeling now that she was fully embracing the feeling of being big.

Author's Note

Well, I guess Cadance has found her groove now! But what will she do now that she has reached these new heights? Who will she take on as partners in her next adventure? How much more excitement will she make of this little pleasure of hers? Find out next time on the next episode of: Hypno-Tummy!