Big Muffins

You looked in awe at the now larger Derpy Hooves with her massive backside turned to face you. Her huge fat rump was a truly breathtaking sight. She stared back at you with bedroom eyes, while shaking her fat bubbly cheeks from side to side. As her cheeks wobbled wildly about, there came a wonderful sound of flesh slapping against flesh as her bubbly cheeks smacked against one another.

At the same time, Derpy's long, bushy blonde tail wagged excitedly from side to side. Her huge, feathery wings were extended outward as if she was about to take flight. Her plump, meaty pink marehood glistened before you. Her sex was soaking wet with her juices. A river of her creamy essence leaked down the canyon of her buttcheeks, dripping down onto her leg, before finally landing squarely on the floor, and forming a puddle of her love cream.

Between your legs, your massive horse-like cock stood primed and ready for her big fat ass. You partially held your thick cock with your right hand, its sheer thickness meant you could not fully wrap your hand around it. You stood naked, fully ready to give all the love she needed.

“I just wish I could have your massive ass sit on me without hurting me if you grow really big.” you said in a low voice.

“Actually Anon, all ponies have built in anti crush magic.”

“So you can keep getting bigger and bigger without fear?”

“Yep.” she said, giggling in joy, bringing a hoof over her mouth.

The mare reached into the box and took out another muffin, and swallowed it whole. The mare moaned aloud as she once more began to grow in size. Mid-growth, she then took another muffin into her mouth, and then another, and another.

6 feet became 7 feet, 7 feet became 8 feet, 8 feet became 9 feet, 9 feet became 10 feet, 10 feet became 11 feet...

As Derpy gorged on the muffins her ass began to air-balloon out in growth, quickly filling up the room around her. Her rapidly expanding mass soon came to knock over her chair. You walked backward to avoid being hit by the expanding bulk of her rump. A loud creaking sound filled the room as Derpy’s bloating cheek pushed the table across the room.

There came a loud snap as Derpy’s expanding hooves sank into the wooden floor below her, and began to sink into the earth itself below.

“Uh Derpy, don’t you care that you’re basically destroying your own home?” you asked.

“Eh, magic will fix it later.” she said, waving her hoof nonchalantly, before stuffing yet another muffin into her mouth. “Mmm.”

Derpy grew and grew, seemingly without stop. Before long, Derpy’s head came to bump against the ceiling. At the same time, her fat bubbly cheeks began to push against the walls of her cottage, the fat cheeks of her ass depressing deeply against them. Dust and debris began to fall from the ceiling for a brief moment, before the ceiling and the walls began to expand around her, allowing her to grow even further.

Derpy squealed in delight, making a sound like a dog's chew toy. “It seems I can eat all the muffins I like."

Derpy brought her right hoof back, and placed it upon her plump asscheek. She smiled in delight as her heavy hoof sank into her plush rear, a deep depression was formed upon her buttcheek. Once satisfied, she pulled her hoof back. The depression faded as her cheek quickly returned into a perfectly smooth shape.

“Mmm, you want this big fat ass, don’t you?” she said in a hot breathy voice.

You stared in awe at your now even more massive marefriend. She currently stood at about 20 feet tall. Each cheek of her bubbly, perfectly round rump was like an over inflated beach ball. In terms of size she was quite literally on par with an elephant thickness, crossed with a giraffe in height. Her heavy, thick hooves dug deep into the floor before her. Her estimated weight must be ranging somewhere between 10 to 20 tons, if not even more. Her rump alone must have weighed several tons.

Her massive, bubbly rump jutted out from behind her, and looked a little disproportionate to the rest of her body’s respectively large frame. Her rump was perfectly smooth and round, not a hint of sag in the least, despite the great thicknesses of her ass, it seemed to defy gravity itself with its magnificence.

Derpy hiccuped, this was followed by a massive growth spurt. Derpy cried out in bliss, a huge blob of her creamy marecum came blasting out of her vagina. Her seed flew everywhere, like a shotgun blast, hitting you and the walls of her home. You were now covered from head to toe in creamy marecum. The smell of blueberry muffins bombarded your senses.

You stared wide eyed as Derpy skyrocketed into the air. Within a manner of seconds she doubled in size, now reaching 40 feet tall. Derpy hiccuped again, blasting her upward to 80 feet tall.

Her rump was blimp-like in terms of size at this point. The massive bubbly spheres of her cheeks loomed over you, casting a dark shadow over your small form. She was ten feet taller than the dinosaur known as a Breviparopus. Breviparopus had a much longer neck than a pony, so therefore Derpy’s mass was much greater. You couldn’t even see the entirety of Derpy’s massive, bubbly ass up close without walking back a great deal to see it.

Derpy’s massive butt cheeks pressed against the walls of her home, the squishy soft fat of her butt depressing deeply against the walls. Dust and debris fell from the ceiling, and several bricks became loose. Her home soon expanded away from Derpy, stopping her from destroying it.

“Oh, my. Look how big I am.” she said, blushing at her new size.

You walked forward to embrace her huge rump. However, you only managed to reach her thick, back hind legs, which were like red wood trees in terms of thickness at this point.

Derpy giggled."Here, let me help you."

In one quick motion, Derpy stepped forward, and then proceeded to slam her massive ass hard upon the wooden floor underneath her. The wooden floor cracked like glass underneath her upon impact from under her heavy rump.

Her moist, dripping wet marehood lay before you between her thick hind legs. The shadow of her massive ass loomed over you as it stood tall and mighty into the air.

You walked between Derpy’s thick hind legs. You then found yourself walking upon a seemingly invisible staircase, allowing you access to her upper rump. You now stood above her marehood, her puffy, pink ponut lay before you. Slightly above that lay her tail. Her soft tail came to snake itself around you, wrapping you in a warm embrace.

You placed your hands on both sides of her bubbly, upper cheeks, your hands sank into the plush, soft flesh of her ass. Her soft fur brushed against your skin as you did so. Her cheeks were so wide, that you couldn't even reach either of her cutie marks without going down lower, and leaving the canyon between her cheeks.

You stared at Derpy looking back at you with her signature cross-eyed look. Her eyes alone were like the size of british double decker buses at this point. Her right eye was out of focus, seemingly staring out into space. Her left eye would look at you for a brief moment of time, before her eye looked at a random direction, before returning to look back at you.

You pulled your hand back far, before delivering a hard slap on her buttcheek. Derpy uttered a happy whinny as her rump wobbled like jello upon impact. This was accompanied by a delightful, meaty slapping sound as her asscheek slapped against the other one.

Derpy could not help herself, she reached into the box to grab another muffin to make herself even bigger for you. However, the sheer thickness of her red wood tree-like hoof made that next to impossible. Derpy grunted in frustration at this turn of events. Just when all hope was lost. The box magically enlarged itself, allowing Derpy to fit her hoof inside.

With the box now larger, Derpy reached into the box and ate another muffin. You saw her crane her neck back, while uttering a deep, throaty moan.

You were pushed back slightly as newfound mass flowed into her rump. The sight was simply breathtaking. You thrust your hips forward, slipping your cock between her soft tail. As you did so, the lower half of your cock came to hotdog the thick canyon of her buttcheeks.

Derpy squeezed her asscheeks together, sandwiching your cock between her soft, heavy cheeks. You moaned as her soft cheeks came to smother your cock. As your member thrust back and forth, it rubbed against Derpy’s hot ponut below.

Derpy giggled as she felt you happily hump her growing ass with your cock. While still growing, she took more and more muffins into her mouth.

Derpy’s air ballooning rump pushed against you as it grew in size. The space between her buttcheeks came wider and wider as more and more mass flowed into her rump. As she grew taller, you found yourself slipping lower and lower between her asscheeks, your cock sliding long the canyon of her buttcheeks. Her plump, soaking wet marehood soon came into view as you found yourself standing back down on the floor below.

Derpy's rump alone was at least 100 feet tall in height. A dark shadow loomed over you as her great bubbly mass dominated your vision. You watched in awe as Derpy's ass quickly air ballooned up in growth.

She was jumping up in height by about 10 feet every second. 100 feet became 110 feet, 110 feet became 120 feet, 120 feet became 130 feet, 130 feet became 140 feet, 140 feet became 150 feet. Just then, Derpy hiccuped, blasting upward to 300 feet tall.

Her marehood at this point was like a huge cave entrance. You had nowhere near a big enough cock for her. Derpy pressed her legs together, tightly squeezing you between her thick thighs, trapping you in darkness. You shuddered at the feel of her soft, warm flesh squeezing against your bare skin.

The scent of marehood drove you wild. In the darkness between her legs, you hungrily ate her out. You could hear Derpy utter a loud whinny in response.

With magical aid, you could see Derpy lift the box with her right hoof. The mare leaned her head back and opened her mouth wide. She lifted the box above her mouth, and allowed the muffins to freely fall out of it. Like a continuous stream, droves of muffins fell out of the box, each one falling squarely into Derpy’s mouth. Derpy didn’t even need to chew on the muffins, she just swallowed them whole.

Faster than ever, Derpy began to grow. The power of the muffins flowed through her as she reached greater and greater size. You soon found yourself pulled between her asscheeks, the thick cheeks of her ass came to squeeze your small body between them. You cried out at the feel of your cock being smothered between her soft, warm hilly asscheeks.

The muffins began to grow much bigger, which in turn added even more growth to Derpy. Derpy skyrocketed into the air at great speed with larger muffins flowing into her. Her head soon came to bump against the ceiling, her massive bubbly flanks began to press against the walls, depressing deeply against them.

There came a loud crash as Derpy bulldozed down her room. Her head came shooting through the roof, her flanks burst through the walls of her home, and came speeding toward nearby houses.

Ponies on the street panicked, attempting to flee while screaming in fear. They tried and failed to do so. Derpy’s hyper expanding flanks came rolling over them at great speed, giving them no time to escape. Thankfully, the ponies remained unharmed under her. Their tiny bodies remained intact, and still could breathe even with Derpy’s plush flesh smothering them.

Derpy cried out in pure ecstasy, her tongue lolling out of her mouth as she drooled profusely. She was totally lost to the world in growing bliss. Muffin after muffin fell into her mouth, each one causing her to have a massive growth spurt. Steadily, the muffins grew larger themselves, which helped her grow faster and faster with each new muffin eaten.

The town of Ponyville soon was utterly destroyed as Derpy’s rump ploughed through building after building. It wasn’t long until Derpy had the whole town smothered under her ass. Even then, she kept expanding, her right flank began to advance over the surrounding countryside. Her right flank came speeding toward the outskirts of the Everfree forest, flattening trees as her rump rolled over them.

The inhabitants of the town turned into a rainbow mist and became absorbed into her body, safeguarding them from her butt’s destruction. They looked around in confusion as they found themselves back in Ponyville somehow with Derpy nowhere in sight.

The inhabitants fueled Derpy’s growth even more. Their matter and magical essence fed her growth. A horn materialized atop her head, her alicornation caused yet more growth. The grey alicorn mare moaned a loud, as she trusted her hips back and forth, grinding her massive ass on the earth below her.

Her mighty butt plowed deep into the earth. A deep underground Diamond Dog mining colony filled with gems was soon captured into her ass, they remained unharmed, even as the ceiling collapsed on top of them. They lay unable to move with piles of rocks on top of them. Until Derpy’s growing ass closed in on them, and absorbed them into her body. They were confused at this turn of events as they found themselves back in their mine with the ceiling still intact.

Derpy's flanks rolled across the countryside, flattening everything in their wake, and turning every living thing into a magical mist, which she absorbed into her. Derpy’s right flank soon had the entire Everfreee Forest smothered under her. Her left flank came speeding toward Canterlot mountain.

With a loud slam, her hyper expanding cheek smashed into Canterlot mountain, sending dust and debris high into the air. A flood of rainbow mist poured out of the city of Canterlot into Derpy’s body. Soon, the entire mountain itself became flatten under Derpy’s growing weight and size. Soon, the planet itself was split in half due to the power of Derpy’s growing rump. This was followed shortly with the planet being simply turned into a rainbow mist, and sucked into her. The planet was good as new inside her, nice and safe.

“I just don’t know what went wrong.” she said, before eating more muffins to grow even bigger.

Derpy grew and grew into space itself, the universe was now at her mercy. She licked her lips at the distant stars, wishing to take them into her as well. You were only too happy to encourage her to eat more muffins.

“That’s my Derpy. Keep eating them muffins. You just keep getting more sexy.”

Derpy squealed in delight, making a sound like a dog's chew toy. Derpy ate even more muffins, hoping to fill the universe with her mass and beyond.