Author's Note

Content warning for this chapter: Explicit full tour and masturbation.

An Apple a Day

Midnight was launched with such force, he soared over the heads of heads of the two fillies. Scootaloo's ear flicked reflexively as he passed close by. Compared to the hot pit of the stomach, the warm summer air felt frigid to him as he soared through the air, making his drenched mane and coat feel like ice against his skin.

Suddenly a large form loomed in front of him, blocking out a good portion of the first sunlight he had seen in what felt like days, as Big Macintosh poked his head into the barn. The giant red stallion's mouth opened wide, and the gaping fleshy abyss of his maw rushed up to meet him.

******************

In the middle of a tremendous yawn, Big Mac felt something small impact the back of his throat surprisingly hard. It happened so quickly he swallowed reflexively, and he felt something tiny and squirming slide down his throat.

“Darn moths...” he mumbled with a slight grumble of disgust even though he hadn't really tasted it. He had to feel bad for the poor critters. This wasn’t the first time this had happened, and it wasn’t a fate he’d wish on any creature. Not even a bug.

There had even been a close call with a breezie on one occasion, which he had fortunately spat out in time. The poor teeny mare had been so traumatized, she had needed to stay with Fluttershy for a week.

All well, ain’t nothing to be done about it, he thought with a sigh, before turning his attention to the foals seated in front of him.

"C'mon now, kids. Y'all know yer not s'posed tuh be drinkin' soda before dinner time. Yer gonna spoil yer appetite," he gently scolded when he noticed Twinken had a dazed look on his face, holding a hoof over his mouth with a deep blush on his face. "What's wit' him?"

"You should have seen it, he chugged, like, four whole bootles of pop and let out the biggest burp I think I've ever seen!" Scootaloo exclaimed, sharing another giggle with Applebloom, causing the blush on Twinken's face to intensify.

"Heheh, maybe but he ain't got nuttin' on mah belchin'," Mac replied with an amused chuckle but resumed his dad-mode, "but ya'll be gettin' along, supper's almost ready."

With a collective "AWWWWWWW," the foals scrambled out of the barn.

Once they were gone Mac walked over to the cases of soda, the cold bottles glistening with condensation. He had just finished a hard afternoon bucking apples, and was feeling a bit parched.

"Eh, wha' th' hell, one won' hurt," Mac shrugged before opening it and taking a swig.

****************

With a wet plop, Midnight was deposited into the stomach of Macintosh, whom'd he just managed to recognize before entering the stallion's maw.

"You... have... got to be.... FREAKIN' KIDDING ME!!" he shouted in frustration, his words echoing off Mac's stomach walls around him. Being eaten alive was something he had never imagined would happen to him, much less twice in one day.

Fortunately unlike Twinken’s stomach, the fluid here only only came up to his knees, and smelled faintly of apple cider. He also considered himself fortunate Big Mac was an earth pony. Unlike himself and his little brother, whose lunar pony biology had evolved to process meat, the earth pony's digestive tract would more than likely be unable to actually digest him.

Lighting his horn, he was in awe. This stomach was easily ten times the size of the last one, the light fading into shadows on the ceiling and far side. The walls seemed composed of fleshy wrinkles, attesting to its ability to expand even further when filled. It was no wonder Mac could put so much away. Every time Midnight saw him eat, he always seemed to devour enough for two or three ponies.

Midnight waded through the gastric juices and pulled himself onto one of the wrinkles. It pulsed slowly in time with Mac’s heart and kneaded him gently, but not enough to push him off if he wasn’t holding onto it. Big Mac was a good friend of his, and he chuckled to himself as he wondered what Mac would say if he knew where Midnight was right now.

Mac was a stallion of few words, but this situation would certainly be a topic worth of discussion for the farmer.

There was a loud splashing sound as something flooded into the chamber. Midnight's nose caught the scent of oranges, and his hopes rose as he heard it fizz, causing small waves to ripple across the pool. Could he be so lucky to escape this way a second time?

He waited hopefully, but only a few bubbles popped out of the liquid below as the fizzing died down and dissipated.

"EEYUP," boomed Mac's voice from all around him, creating a slight tremor as from the stallion's voice.

"Well, I guess not," he muttered with a sigh.

As Midnight lay there, he kept his horn lit to ward off the darkness. Ordinarily, he didn't mind working in the dark, being able to see with his lunar pony nightvision, but this felt different, what with being inside a stomach instead of his workshop.

Realizing it wasn’t such a great effort to channel magic as it had earlier, and spotting a hayseed floating nearby, Midnight tried reaching out to levitate it, and though it didn’t hurt his head this time, the tiny object might as well have been a mountain.

He sighed. It seemed even the most basic of spells were still beyond his capacity. So, he just lay there for a while, letting the walls rub against him like a giant massage chair, and his mind wandered.

The longer Midnight spent in the stomach, the more he was able to recognize all the subtle movements and sounds around him. A rocking motion and increase in the constant heartbeat when Mac was walking. An incline one way when he stretched, and another when he sat down. He could hear the deep inhale and exhale of the stallion's lungs, the gurgle of the intestines somewhere deeper down, and the course of blood through the tissue around him. It was strangely relaxing in a way. Sometimes he even heard Big Mac talking. His voice was a little muffled and indistinguishable over the sounds of the stomach, but recognizable for what it was.

********************

The wind rippled over Specter's leathery wings as he coasted in lazy circles over Ponyville. The sun had set hours ago, but this was no big whoop to him. He could see just as well in the dark, if not better, than most ponies could during the day. As he flicked his ears, listening for signs of anything out of the ordinary, he could feel the weight of the earring he had magnetically clipped to his right ear. He wasn't the kind of pony that normally wore earrings, or any jewelry for that matter, but he knew the protection it offered could prove invaluable.

The thinking about the earring reminded him of Midnight Blaze. The unicorn hadn't shown up for the patrol meeting earlier that evening. This wasn't unusual of course. Midnight often got caught up in his work and lost track of time. Plus, it wasn't like they were short staffed or anything. However, having a good friend to talk to did make it a lot less boring. Banking to head toward the edge of town, he leveled out into a silent glide. Well, if Midnight thought he could shirk his duties so easily, perhaps he had earned himself a good scare.

Landing in front of Midnight's tower, Specter walked up to the arched entryway and tried the front door. Surprisingly, it opened with a press of his hoof, and he strode right in. The shop itself was dark, and Specter used this to his advantage. Seamlessly blending in with the shadows, he made his way to the basement door.

Reaching the door he let out a hiss as he was nearly blinded by the light that flooded out when he threw it open. Shielding his sensitive eyes with a wing to give them a chance to adjust, he crept his way down the stairs.

Making his way into the workshop, he took a quick jaunt around. Not finding much of interested, he circled back to stop at a cluttered workbench. Aside from all the regular 'science-y' stuff, there was also an open notebook, sheets covered in various sketches and runes, and a tray of cupcakes.

Idly popping one of the cupcakes into his mouth, Specter took a glance at the neatly scrawled notes in the book.

"Tho that'sh...gmp! ...what he's working on," Specter mumbled to himself after swallowing down his snack, getting crumbs everywhere as his eyes skimmed over the pages. Obviously the shrinking experiment hadn't been completed if these cupcakes were the subject, so where was that unicorn?

"Probably in the can or something," he muttered.

It would be a low blow to startle someone on the toilet, even for him. So Specter cleared his throat and took a deep breath.

"Hey Midnight, where ya at!?"

On one of the floors above him Specter heard a door slam followed by the clopping of hooves across the floor. After a few short moments Twinken's bleary purple face poked through the doorway.

"Oh, I know you, you're my brother's friend, is he with you?" the colt half-shouted, making Specter's sensitive tufted ears lay flat.

"Not so loud, please? Sensitive ears," Specter winced before realizing what the colt had just said. "Wait- He's not here?"

"No..." the colt's face fell, looking worried. "I saw him when I got back from school, but he was busy, so I went to see some friends, and later when I came back he was gone! Midnight always tells me to go to bed before 9, so I-"

"Okay, okay." Specter cut him off. "So you haven't seen him since then?"

"No, I'm by myself..." Twinken answered, looking absolutely crestfallen. "I-I thought he'd gone out to get things for his work or something, but he's been gone too long and I'm really getting worried!"

Specter came over and gave the colt a reassuring pat on the back. "Don't worry, little buddy. I'm sure he's fine. Probably got caught up looking for ingredients or something. Go back to bed, I'll find him."

After seeing Twinken to bed and making sure the colt was okay, Specter made his way outside. Spreading his wings, he took off into the night. There were several possible places the unicorn could have gone, but at this time of night that list was shortened quite a bit if he was indeed looking for ingredients. The unicorn's disappearance seemed odd and abrupt, but it wasn't unheard of for a pony who could become as wrapped up in his work as he often did to run off in search of a missing component.

Still, Specter knew Midnight, that the unicorn was a good and responsible big brother. Vanishing without a word, not coming back to check up on his little brother? That was not Midnight.

First, he had to check around to see if anypony had seen him. If a few inquiries and a quick search of the town didn't turn up anything, the Everfree Forest would be a good bet.

*************************

Midnight spat out...something...his eyes flying open as he nearly choked. He had fallen asleep hours ago, and at some point during that time Mac must have helped himself to dinner. A mountain of partially digested food held him pinned to the stomach wall as it churned and sloshed. He wriggled and reached his hooves up trying to find purchase, but this had the opposite of his intended effect. With a wet squish something shifted beneath him, and he was pulled down.

He had no sense of direction as he was mercilessly tossed around, crushed in from all sides by the slop. He struggled to swim to where he though the surface might be, only to be pushed back down as a chunk of apple collided with his midsection, knocking the breath out of him. Then he felt himself grabbed in a strong current that tugged at him, forcing him even deeper. Just when he thought his lungs were about to burst he felt a muscular ring clench around him. It seemed to hold him in a muscular grip for a moment before flexing open again and sucking him through with a loud slurping sound.

As soon as he was through the sphincter closed tightly behind him, cutting him off from the chaotic lake. In moments the liquid around him drained away, and he took a deep gasping breath of air. On all sides he felt a gentle rolling, squeezing motion tugging on him. It was still quite damp, and much of the space was taken up by a mushy mixture of liquids and solids, the only thing recognizable out of it being clumps of sodden hay, as the rest was too thoroughly digested to make out what it might have been.

As Midnight was pushed along, the tunnel he was in shuttled him through all manner of twists and curves. Up, down, left, right, it seemed to snake around in every direction imaginable. As the walls rubbed against him, he noticed they were not completely smooth as he felt tiny bumps brushing through his fur. Villi trying to pull all the nutrients they could from the thoroughly processed food to fuel the giant stallion's body.

Midnight, however, was not food. However much he felt like it at the moment, he knew his journey would continue with the rest of the indigestible mass, and at the end of that journey was freedom.

Yay... Midnight thought with a bittersweet mix of woe and disgust, as he realized what was going to happen.

In one end and out the other.

*******************

Dawn broke over Sweet Apple Acres, and a rooster crowed as the sun bathed the hills in brilliant shades of yellow. While most ponies preferred to wake with the dawn, Big Mac, like the farm pony he was, had already completed his morning chores and was sitting down for breakfast.

The kitchen bustled as breakfast was prepared. Granny Smith was rolling out dough for a pie as Applebloom stood at a griddle flipping pancakes with a spatula gripped in her mouth. The table shook as Applejack set a towering stack of pancakes in front of him.

"Mornin' Mac, sleep well?" She asked.

"Eeyup!" He replied, as he doused the pancakes in a generous amount of syrup.

As Big Mac dug in he felt the strangest twinge deep in his guts, causing him to pause halfway through a bite. It only lasted a few moments before his belly let out a deep growl, as if complaining about the lack of food being shoveled into it. With a shrug he returned to his breakfast.

********************

As Midnight was squeezed along through the maze of intestines, he was in a peaceful state, drifting somewhere between sleep and wakefulness.

In this time his mind wandered, forced to occupy itself in the lack of activity. He considered the body he was in. How big and strong the farm pony was, even compared to Midnight at his full size. How little effort it would take him to overpower the unicorn and make him his.

As he reflected, he was suddenly aware of something poking him in the belly as it was ground between his body and the intestinal wall. At some point during his musings, his cock had emerged from its sheath, and was now being mercilessly rubbed between himself and the slick walls, and further stimulated by the strong, yet gentle peristaltic motion.

As waves of pleasure and need ran through Midnight’s head, his mind was overtaken by thoughts of the massive stallion. He didn’t know if Mac could ever have feelings toward himself, but that didn’t matter at this moment. Right now he was being dominated by the giant stallion. Squeezed and stimulated whether he wanted it or not.

Involuntarily he began bucking his hips, slowly rocking his stallionhood deeper into the slick wall. The head of his cock flared as he bucked even more wildly, the pleasure building along with a sense of pressure as his balls tightened and the head of his cock flared.

In no time it reached the point of no return, and he came heavily, a sense of pleasure and lust overtaking all thought. Sticky ropes of his seed shot out in spurts, coating the wall beneath him and mixing into his fur with all the other unknowables that had left it soaked and matted.

He breathed deeply as the waves of pleasure receded, and once again faded back into semi-consciousness.

***********

Midnight passed through yet another opening, this one fortunately opened into a space that was wide enough for him to finally stand after spending hours being squeezed through a narrow tunnel. It was significantly drier as well. Though the walls were still slick, he wasn't wading through fluid and muck anymore. As he progressed he was almost overjoyed to find the area mostly clear of waste. One thing he had feared ending up here was being trapped in a compacted mass of horseapples, but other than a few pieces here and there which he carefully eased himself around, his path was clear.

As he continued, he felt a strange tingle run through his body, and the walls closed in around him. No. It wasn't the walls. He had grown! If he estimated himself to be about the size of an insect before, he was now as big as a rat. His legs were held tight against his body to the point he could barely crawl, and so he resigned himself once again to the push of the intestine to move him along. Fortunately it seemed there wasn't too much farther to go, as the large intestine wound one more time and straightened before widening slightly. At the end of that final length was the tightly clenched exit that stood as his final barrier to the outside world.

With the slight increase in space Midnight was able to inch himself forward until he was a hair's width from the sealed portal. He thought he should be disgusted by the thought of touching the farm pony's anus, but after everything he had been through it kinda paled in comparison. With a sigh, he reached both forelegs in front of him and tried to pry at it.

His hooves sank in slightly as the flesh gave a but around them, but the tight muscle of the ring remained firm. As he worked at it, he felt his own rear become wedged as he grew again and filled the space around him. The muscle in front of him gave a bit more as he put his increased strength into it, even prying it open enough to let in a pinprick of light and just a hint of clean air.

As his efforts continued Midnight could feel pressure building behind him as his body acted as a cork, restricting everything behind him. With the push from behind he was able to slide a bit further, wedging his muzzle in the widening gap, inhaling the sweet sensation of a breath of fresh air (albeit mixed with thick stallion musk).

Just...a....little....more.....! the unicorn thought as he struggled to move in the cramped space, and felt the pressure behind him building to critical levels!

*********************

As Big Mac walked through the orchard on his way to buck the apples from another tree, he groaned. An angry gurgle emanated from his guts, and his rear end felt bloated worse than any gas he'd remembered ever having before. It was so bad he could swear it was clawing at his tailhole to escape. Looking around to make sure nopony was near, he dashed over to a growth of bushes and lifted his tail.

Groaning again, Big Mac pushed. Slowly his tailhole opened to admit Midnight's head and forelegs before stopping again. Midnight pressed his forelegs to the sides and pulled, the puckered hole rippling around his body. Mac gave another push, and suddenly there was a loud 'pop'like a champagne cork followed by a rush of air.

*FFFPPPPPPPPPPBBBBBBBBPRRRRGGGGGHHHHHHH*

Midnight went flying out, tumbling once or twice and landing on his back under a shrub. He could only stare transfixed as he saw Mac's rear looming above him. He watched as the the hole he had been thrown from stood gaped wide open, revealing its soft pink interior to the world before slowly clenching shut again.

"OOOHHHHHHHHYYyeeeeaaaaahhhheeeeyup!" groaned Big Mac with blessed relief as his backed-up butt found release.

Pretty damn good-looking butt, thought Midnight, though he kept hidden and didn't reveal himself.

As shaky as Midnight was, he forced himself to his hooves and ran. There was no way he would be able to explain this to Mac at the moment, and even if he believed Midnight's story, he would probably be too embarrassed to ever talk to him again.

Midnight breathed deeply as he ran, soaking in cool the fresh air and warm sunlight. No, this would never be spoken of again. He'd take his chances finding help elsewhere, but the first thing he really wanted to do was find some clean water.