Filthy Filly Fun!

by Deshamable

Rating: mature
Tags: Sex, Sweetie Belle, Apple Bloom, My Little Pony: Friendship is Magic, Romance
Length: 4455

Sweetie Belle has a terrible sister and hates her; she wants to be a member of the Apple family. But her "Apple Training" is getting weirder every time..

Commissioned by KinkyPony.

Sweetie Belle and Applebloom; the best of friends, cutie mark crusaders, and soon-to-be sisters, in Sweetie Belle's eyes. But Applebloom's "Apple Training" gets weirder and weirder as her new sister comes up with the strangest, grossest requests and dares.

[Fetish warning: Scat, Watersports, Foalcon]

Published 2014-03-28 00:00:02 UTC
Last updated 2014-03-28 00:00:02 UTC

Filthy Filly Fun!

Author's Note

Warning: This story goes farther than I normally do in my writing.
Reader discretion is 'highly' advised.

Filthy Filly Fun!

"Umm.. I dunno, Applebloom.."

Sweetie Belle stared at the brown, murky puddle in front of her. Applebloom had already ensured her that it was deep enough to jump into without getting hurt, and the smell was of nothing but pure mud, yet somewhere deep inside Sweetie knew there was something wrong with the entire thing. Why was Applebloom so insistent on her jumping into a dumb mud puddle, anyways? If anything, Rarity should've been the one they were training to get dirty.

Applebloom scowled slightly, as if Sweetie's question was too dumb to warrant an answer. "Quit yer complainin' and just get in the puddle! Ya wanna be part of the Apple family, don'tcha? Ya can't be afraid of a li'l mud!"

Sweetie sighed to herself. After her big fight with Rarity, she got so upset that she, without thinking, broke all of her sisterly ties to her. She sometimes wondered if she should just go back home and apologize..

She stomped her hoof and shook her head, signifying her defiance. She was going to become a part of the Apple family- Applebloom's sister- and she wasn't going to look back. Rarity was just going to have to deal with the new changes; it was her fault, after all.

Taking a few steps closer to the puddle, one hoof right on the edge of it, Sweetie looked back down. Still, no questionable scents hit her, but she knew one was there. There was no way mud of this consistency and volume could exist without a little help from outside sources. But, if she got to be an Apple, then that was a small price to pay.

There was a loud, filthy splash as Sweetie leapt into the puddle, inadvertently sloshing mud in every direction; one, large shot hit Applebloom directly in the face, causing her to giggle and wipe it off.

"Watch it, Sweetie Belle!"

"Sorry, A-B."

Applebloom rolled her eyes at the lame nickname. It was obvious to her how desperately Sweetie Belle was trying to be her sister, but she also thought there are some parts of sisterhood she should leave alone. Nicknames, for instance, was a good start.

"Isn't that a type of barbecute sauce..?" Applebloom wondered to herself, out loud.

Sweetie Belle surfaced in the mud. "Barbecute sauce?"

Applebloom nodded. "Yeah, barbecute sauce; it's that stuff ya put on veggies or fruit and it makes it taste better."

Sweetie thought about it for a moment. "Hey, maybe our cutie mark is for making that..! We should go try when we're-"

Sweetie's sentence was cut off when Applebloom sprung herself into the air and landed on top of her in the mud, making her do an unpleasant belly-bump with the ground with the sudden weight. Applebloom snickered from above her as she violently coughed and gagged, accidentally taking in a mouthful of the uncomfortably bitter mud and swallowing a small amount.

Desperate to get to the surface again, Sweetie subconsciously tapped into her magic and threw Applebloom into the air. With her friend temporarily flying above Ponyville, Sweetie brought her head back up above the surface and gasped, taking in all of the sweet-scented, better-than-mud oxygen she could.

"Funny how much you miss breathing with your face in a puddle of-"

She was cut off again when Applebloom landed in the puddle again. Fortunately, this time, she splashed down right next to Sweetie instead of on top of her. She, too, found the surface of the puddle, coughing and choking up some mud.

"Holy apples, that's bad..!"

"Guess we're even now, huh, A-B?" Sweetie smirked, suppressing laughter.

"Even? I'll show you even..! And stop callin' me 'A-B'!"

Sweetie blushed darkly as Applebloom moved their faces close together and suddenly pulled her into a deep kiss. Within the kiss, Applebloom forced a surprisingly generous amount of mud, mixed well with her saliva, into Sweetie's mouth, before wrestling Sweetie's tongue with her own to keep her from spitting it out.

Sweetie Belle couldn't have been more embarrassed. She was going to get forced to swallow more of the disgusting mud, watered down by her own friend's lightly apple-flavored spit. The situation, to her, was gross, uncalled for, not helping her to become an Apple, and.. pleasant. Eventually, she chokes down the spit-mud mixture and Applebloom breaks the kiss.

"Ha, I win..!" Applebloom chuckled.

"What was that for!? We were even..!"

"Apples don't settle for 'even'; we're winners!"

"How am I supposed to become an Apple if my training involves making out with my sister-to-be in a disgusting puddle of mud!?"

Applebloom snorted, speaking a little too proudly. "Everypony knows that if the Apple family is one thing, it's inces-" She stopped, thinking about what she was saying. "Uh.. never mind that last part. No hard feelings?"

Sweetie let out an exasperated sigh. An occurence so dumb and trivial was not going to deter her from her ultimate goal, and definitely wasn't enough to make her hate Applebloom. After all, it wasn't the first time Applebloom did something fillies are supposed to stay away from. Sweetie recalled the time she walked into the Cutie Mark Crusaders' clubhouse to find Applebloom and Scootaloo; Scootaloo's legs spread wide and Applebloom muzzle-deep inside of her. Things were a bit awkward after that, for a few days at least.

"Fine; let's just get going."

Both of the fillies' ears perk up immediately at the sound of two voices, as well as two sets of hooves approaching. Applebloom winced. "Did I mention that if we get caught here, we could both be disqualified from the Sisterhooves Social..?"

Sweetie Belle's eyes widened. "W-What!? No, you left that out..!"

"Sh-Shh! Not so loud!" Applebloom put her hoof to Sweetie's mouth, shutting her up. She looked around quickly, then smiled, finding a wagon nearby being pulled by a stallion: Big Mac. She knew if he caught her in the cart, she could say she wound up there by accident, and he'd forget the whole thing. Applebloom quickly ran over to the wagon and jumped into the pile of its contents. Sweetie gasped in disgust in surprise.

"A-Applebloom, do you even know what that stuff is!?"

Applebloom poked her head out of the pile, looking at Sweetie. "Eeyup! Now get yer flank in here, before yer caught! Apples can't be afraid of gettin' their hooves dirty!"

Sweetie winced, cringing at the thought of what she was about to do, but quickly built up the courage to gallop over and bounce into the moving wagon. The mushy contents were easily pressed and rubbed into her fur, smelling like something most ponies would want to avoid getting their faces in.

The wagon was full of manure.

Applebloom took a deep breath and pulled her face back inside of the pile, carefully watching out of the "window" her head had made previously. She discovers that the hoofsteps from before were made by none other than Applejack and Rarity. Her ear twitches as Rarity speaking in an unintentionally whiny voice.

"Big Macintosh, please would you be more careful with that? You almost spilled some, and then it could have gotten on me!"

"Eeyup." Applebloom could feel his eyes roll.

"Now," Applejack stepped into the mud puddle. "Ya say ya wanna hide in here?"

Rarity shook her head in response. "No, I don't want to at all, but I have to if I'm going to repair my relationship with Sweetie Belle..!" Applebloom's eyes widened slightly. Perhaps Rarity cared more than she thought she did.

Applejack smirked. "Let's see how far yer willin' to go, for Sweetie Belle." Applejack flicked her tail upward for a long moment, during which, a constant splashing sound was audible to Applebloom.

Rarity gasped loudly. "Applejack, what are you doing!? That is not the place for that- I have to lay down in that tomorrow!!"

Applejack could only chuckle at her friend's complaints, the splashing continuing. "Ya gotta be ready t'do anythin' for yer sister, Rares. No matter how dirty!" Applebloom heard Applejack grunt, just as the wagon moved out of hearing range.

Applebloom couldn't deny the scene that just unfolded before her had gotten her a little hot. The idea of Rarity swimming around in filthy mud, fresh and warm with Applejack's fresh "cider" wasn't even remotely unpleasant. Before she knew it, Applebloom was sticking her head out of her small window, just to see how things progressed back there.

To her pleasant surprise, she saw Applejack still in the puddle, talking to Rarity who had also migrated into the pee-dirt mixture. Applebloom could easily imagine what Applejack did in the puddle after that grunt of hers. Her fantasies got dirtier at the sight of Applejack reaching down into the puddle and pulling some more solid mud out of it. Applejack raised her hoof, the "mud" in it, then threw it right into Rarity's open mouth.

Applebloom couldn't help but gasp in surprise. Rarity seemed to have no intent of closing her mouth. She really wanted to keep watching; however, she had no choice but to retreat back into the pile of manure, knowing her gasp was loud enough to spark Big Mac's attention.

The wagon stopped moving as Big Mac turned his head toward where Applebloom was, investigating the gasp. The entire thing shifted its weight; Big Mac put the front end of the wagon down. Applebloom heard his hoofsteps come closer and closer to her hole, causing her to sweat nervously. She quickly disrupted some of the manure close to her face, making her peep-hole cave in, hiding her head.

Big Mac walked right by where she was, though, seeming to have no interest in further investigating the noise he heard. What was he doing? Applebloom carefully dug through the manure until she was close to the surface of the top. She knew that, with her small size, it would be difficult for her to offset the entire pile enough for any dramatic, large spills.

After what felt like an eternity of just tunneling through the manure, Applebloom finally makes a hole at the top of the pile and looks up through it. She did not see the sky like she was expecting, though. Instead, she was greeted by a large, red plot, as well as one of the most musky, heavy scents she had ever had the displeasure of smelling.

The massive, red, round plot lowered slowly, getting closer to her face and causing the scent to increase in potency and even manage to make Applebloom gag. Still, she didn't recede back into her hole, feeling naughtier and dirtier than she ever had before. Not wanting a faceful yet, she raised her arms and braced them for the inevitably heavy onslaught of Big Mac's bowel contents.

She kept her hooves up, waiting for the brown slop to land on her arms, but was surprised to, instead hear a deafeningly loud, wet sputtering above her. Warm gas blew against her arms and hooves with force, powerful enough to nearly push her a few feet back down into her hole; the scent was nothing short of legendary, making her bow wilt and her mane decrease in volume.

Obviously, though, as a filthy-loving member of the Apple family, she didn't mind it one bit. She actually quite liked the scent of her older brother's anal air. She even felt a few drops of liquid anal excretions land on her arms and head; and she desperately wanted to lick them off. Big Macintosh's blast lasted a full 15 seconds; Applebloom was amazed that so much gas could come from just one stallion.

Once the gaseous assault had finally ended and Applebloom was certain she wasn't suffocating, she braced her arms in position once more and got ready. As if on cue, Applebloom felt something warm, wet, and large push against her arms. Big Mac grunted softly, and the gigantic log of scat slapped down flat onto Applebloom's arms. A shiver ran down her spine as she felt it sink down on her, the weight increased since the log was completely detached from Big Mac's ass.

A few more grunts came from above and more waste fell onto Applebloom to accompany the dollop she already had. Eventually, Big Mac's own manure was caked on top of Applebloom, covering up the hole she was looking up through before and giving no sign that a filly would be hiding inside of it. Big Mac stood and looked back at his pile, then quickly trotted off of the wagon and regained his position pulling it.

Carefully, Applebloom carried the waste, still on her arms, and settled back down into her hole. Once she reached the bottom of it, she noticed a tunnel entrance she hadn't made. Curiously, she looked into it, hoping that she wasn't secretly being held captive by some kind of giant worm. Instantly, though, Sweetie Belle popped her head out of the tunnel, startling Applebloom and making her cry out softly.

"Sweetie Belle..! The buck are you doin'!?"

Sweetie rolled her eyes in response. "Trying to find a way out of this mess you got us into..!" She noticed the shit Applebloom was carrying and winced at the sight and smell of it. "Eew, Applebloom..! What are you doing with that?"

"Well uh.." Applebloom tried to think of a good way to explain herself, coming back with nothing. "I dare ya t' eat it!"

Sweetie stared at her in surprise, wondering if she was actually being serious. Then, Applebloom readjusted her position so she was sitting with her legs crossed, and sat the massive amount of horseapples down in her lap. "C'mon, Sweetie Belle, ya wanna be an apple don'tcha?"

Sweetie felt disgusted at the mere idea of eating the warm pile of feces. In fact, she still wasn't entirely sure her friend was serious- even though she was hauling it around as if it was a bag of flour.

"But.. won't it taste really, really bad?"

Applebloom rolled her eyes. "We're Apples, it tastes like apples!" She giggled, licking one of the massive logs that make up the pile. "Well, not quite apples, but it ain't all that bad!"

Sweetie couldn't help but gag. She felt physically sick as her friend's tongue made contact with the waste; the stuff that had just come out of her own brother's anus. Maybe she wasn't lying. Maybe it really did taste like apples.

Applebloom smiled comfortingly, offering a piece to Sweetie. "If ya eat it, I'll help ya- but we gotta get the entire serving down!"

"But.." Sweetie sighed, beginning to question if it was really worth it; if becoming an Apple means eating your brother's..

She sighed again. "Fine, A-B, but only for you."

"Good! Let's dig in!"

Another gag came from Sweetie as Applebloom moved the piece she was holding closer to her face. The smell was putrid; there was no way this was worth becoming an Apple over, Sweetie thought.

But as she sniffed it more and more, the smell alone started to become more bearable. It was as if she was getting used to it. It was as if her body actually wanted her to do it.. she stuck her tongue out, finally, and touched it against the slug-shaped crap in Applebloom's hooves. Instantly, a rush of different tastes and flavors brushed over Sweetie's tongue: bitterness, saltiness, sourness, and even a little bit of sweetness came from just that one tongue-touch.

All of her reluctance gone, Sweetie reached up and forced the scat into her mouth. She chewed it, pressing it against the top of her tongue where it stuck and stayed. Uncaring, more and more of the filth found its way into Sweetie's mouth where she chewed it, played with it, mixed it with her saliva, and swallowed it.

The warm, wet scat released all different, newer kinds of tastes and scents as Sweetie broke it up in her mouth with her no-longer-so-pearly-white teeth. Several whole new levels of spiciness and foulness flooded her senses, causing her eyes to water involuntarily. She found it getting stuck in her teeth, many times, but didn't care; nothing could ruin the moment.

One by one the steamy logs were devoured by both Sweetie Belle and Applebloom until finally, all that remained was two full fillies in a wagon of less-than-fresh manure. Big Mac's new contribution was gone; it was devoured by his sister and her friend.

----------

Applebloom and Sweetie Belle walked down the road together, their tails swishing softly. Nopony in town was still out, and the two had already gotten permission to stay the night in the clubhouse with Scootaloo. Scootaloo could wait though; Sweetie had requested that the two get a chance to talk alone.

"What's on yer mind?"

"Well.." Sweetie hesitated, unsure of how to say what she was saying. "I really like you Applebloom, and I know we're going to be sisters tomorrow, but I.. I just.."

"Aw, hush!" Applebloom suddenly pushed her lips against Sweetie's again, for the second time that day. Except, this time, Sweetie didn't fight back or find any inconvenience in the kiss. In fact, she pressed back into it and forced her tongue back into Applebloom's mouth, sharing the romantic moment.

Sweetie noticed the foul aftertaste of Big Mac's waste in Applebloom's mouth, but she hardly cared either way; no doubt Applebloom was retasting it as well. The natural taste of Applebloom's saliva was too sweet to be disturbed by it, anyways.

Eventually, the two broke away from eachother, and began to walk down the road again. They were silent aside from their hoofsteps, which echoed due to the town being almost completely empty.

"So," Applebloom gave Sweetie a sweet, confident grin. "What're we, together now?"

Sweetie blushed at the question. "Do you want to be..?"

"I sure as sugar do!" Applebloom giggled, nuzzling Sweetie's side once. "Not many ponies eat poop just t'be my sister!"

The blush growing on Sweetie's face went darker. "Aw, they don't? Heh.."

"Nope! In fact, I bet if I really asked you, you'd even be willin' t'eat mine!"

Sweetie's eyes widened and she stopped moving. Applebloom looked back at her to make sure she was okay. "Sweetie Belle?"

She shook her head, giggling. "Oh, it's nothing, I uh.." She smiled, catching up again. "I dunno, A-B, maybe I would.."

Applebloom sighed heavily. "Yer still gonna keep on that 'A-B' stuff?"

"Why shouldn't I?"

"It sounds dumb, for one thing!"

Sweetie's ears flattened and she looked toward the ground, sadly. Applebloom took a long look at the sad, puppydog eyes Sweetie had. Something inside of Applebloom hated seeing those eyes with such sadness in them.

"Alright, you can call me whatever you want.."

Sweetie's ears immediately perked up, and she tackled Applebloom to the ground, hugging her and giggling. "Yay!" She rubbed her muzzle against Applebloom's neck, causing Applebloom to smile.

"Cut that out! Yer ticklin' me.."

Sweetie stopped, then the two silently cuddled for an endlessly long time. The moon shifted above, seeming to move faster every second that the two were together. "I love you," Sweetie whispered softly in Applebloom's ear.

"I love you, too."

Eventually, though, the sweetly silent cuddles were broken by Sweetie, who sat back up on Applebloom. "Hey, I would eat yours, but would you eat mine?" She tilted her head, cutely, which seemed to conflict completely with the question she was asking.

Applebloom nodded. She didn't even have to think about it; if Sweetie had to go, she might have even asked to get under her flank and get a meal. "Why do you ask?"

Sweetie narrowed her eyes, in a way that seemed far too seductive to have actually been Sweetie Belle. Applebloom considered the idea of her being possessed by a demon for a long moment, then shrugged it off. Sweetie stood and turned around.

Upon her eyes' finding the slightly dark, puckered hole under Sweetie's tail, Applebloom lost control of her body. She found herself immediately wrapping her arms around Sweetie's rear, pulling the sexy tush down onto her face.

Sweetie giggled, lifting her tail up and away; her plothole was pressed firmly against Applebloom's muzzle, who started furiously licking and sucking at it. Sweetie's plothole flexed and contracted a few times, not that Applebloom cared or noticed. She was too busy eating away, occasionally resulting in pleasurable slurp sounds.

Finally, after what Applebloom thought to be far too long, Sweetie Belle's plothole opened up and revealed a light brown, sharpened turd. Applebloom thought she saw a green tint on it, but it didn't matter either way. She had already attached her lips to Sweetie's anus and she had no intentions of removing them.

Small pockets of gas escaped Sweetie's sweet plot as she pushed her smooth, solid feces into her new marefriend's mouth; Applebloom felt and tasted the gas as it went into her mouth and down her throat. Sweetie continued to push, offering a cute grunt before the shit made first contact with Applebloom's tongue.

The taste was, unsurprisingly to Applebloom, mostly sweet. It wasn't even that bitter as it slid directly out of Sweetie's plothole and across her tongue, slowly approaching her throat. Applebloom decided to start chewing, wanting to get every bit of the flavor.

Just like before, several flavors revealed themselves to be present as the waste was broken up. It increased in foulness and seemed to radiate some sort of warm, disgusting air, which spread through Applebloom's mouth and into her nose. She even feel the air leaking back down into her throat.

She chewed the feces for a few more minutes, then allows it to slide effortlessly down her gullet. Sweetie got off of her, blushing. "Uh.. sorry, you did kinda ask for it."

Applebloom rolled her eyes. "Don't worry about it. Ya got more?"

Sweetie shook her head, blushing a dark crimson. "Um, no.."

A smirk slowly crawled across Applebloom's lips. "Well, I gotta go. Do ya wanna eat it?"

The smirk quickly turned into a disappointed frown when Sweetie shook her head. "Sorry A-B, I'm still full from Big Macintosh."

Applebloom looked down. "Oh, I almost forgot." It was a mystery to even her, actually, how she'd managed to get Sweetie's scat down, with how much of Big Mac's she'd scarfed down beforehoof; it was a miracle her stomach hadn't ruptured. Luckily, she had an idea.

She pushed Sweetie down, quickly getting on top of her and pinning her arms; but, only for the dramatic effect. Sweetie always seemed to like that kind of thing. Sweetie blushed in response, looking up into Applebloom's eyes uncertainly.

"What are you doing? I said-"

"Don't worry, I ain't goin' in yer mouth.."

Sweetie tilted her head curiously, unsure what to think. If Applebloom didn't want to use her mouth, where was she going to go?

Her questions were immediately answered when Applebloom lowered her flank, managing to push her plothole against the filly's marehood. Sweetie's eyes widened as she attempted to stifle a pleasured moon. As predicted by Sweetie, she felt something warm and solid slide out of Applebloom's anus and directly into her filly, virgin vag. She was unsure if the log of waste was slippery, or if she was merely turned on enough for the smooth feeling- all she knew was that it felt really, really good.

Applebloom grunted, and Sweetie felt the first serving slide deeper into her, being pushed by more fresh, steamy scat. She gasped and moaned in ecstasy, spreading her legs to give Applebloom's shit an easier entry.

The feeling of warmth and pleasure spread through Sweetie's lower body. She wasn't sure how long she would last in her position, already feeling an orgasm building as Applebloom rubbed her dirty plothole against her marehood, smearing the scat. In order to hold her cumming off, Sweetie decided to try another type of release. Applebloom soon felt hot, concentrated liquid shooting out and splashing against the area right above her anus, which caused her to jump slightly in surprise.

"Sweetie, are you peein' on me?"

Only giving a giggle as a response, Sweetie increased the force of her urinating, which was beginning to make a crackly splashing noise against the ground and the base of Applebloom's tail. Applebloom relished in the slightly sharp feeling, knowing it would be fleeting quickly. Yet, despite Sweetie's small, filly bladder, she still urinated for at least a full minute; easily longer than the average filly.

Once Sweetie's stream had stopped, however, Applebloom finished up her relief. She pushed out one last, smaller amount of waste, which poked upward out of Sweetie's soiled marehood. The scent of manure was heavy in the air, seeming to add to the night's cool humidity, and both fillies felt very, very dirty.

It wasn't time to go home yet, however. Sweetie Belle's sweet, fragrant pie had just gotten a fresh and warm, delicious chocolate filling; it would be a shame to waste it, thought Applebloom. She repositioned herself with her face between Sweetie's legs, which stayed spread wide open. Her own scat sat within the mare's private parts, staring back at her.

"Sure is good lookin'.."

"Dig in, A-B."

"Stop callin' me that, Sweetie Belle!"

Applebloom slammed her muzzle into Sweetie's waste-filled hole, making sure to open up her mouth to take the scat in. She closed her eyes as her own shit entered her mouth, seeming to taste more bitter than anypony else's, due to it being her own, special brand. She happily chewed and sucked at the moist, pre-digested cake, swallowing every time she couldn't easily continue.

The taste seemed better than usual, despite its dominant taste being more bitter than usual. Sweetie Belle's marely fluids worked well with Applebloom's scat as an excellent sauce, complimenting the meal perfectly. Although there was definitely more scat than Sweetie could ever produce in marejuice, the light, rare taste of the two together was more than worth it to Applebloom.

Eventually Applebloom had cleaned out Sweetie's marehood and was so full of waste that she wondered if she could even make it to the treehouse. Amazingly, though, she got up onto her hooves (full belly included) and began to walk down the road. Sweetie stood up and joined her, making sure to walk at a pace Applebloom could keep up with.

"A-B?"

"Sweetie, I done told you, call me that one more time an' I'll fill your mouth with what's in my tummy!"

"Um.. Applebloom?"

"Yeah, what is it?"

"I love you."

A long moment passed. Both fillies were blushing yet again.

"I love you, too."