Coco Butt-er

by Ariamaki

Rating: mature
Tags: Equestria Girls, Sex, Sunset Shimmer, Human, Coco Pommel, Rarity (EqG), Original Character, Porn, Romance
Length: 4270

Rarity and Coco go shopping and have lunch with a friend! Many things go right.

This is my entry for the 2019 Demesnemas Secret Santa collaboration courtesy the fantastical MrNumbers, as my gift for the unique and ever-enjoyable Gara-the-author.

The fic would have originally been part of an actual collab piece, but this website's incompetent administration decided to start enforcing their functionally non-existent rule on collaborative pieces literally 2 days before the release of several 70+ chapter collaborations. For no reason! Based on a rationale put forth over 2 years ago by somebody who no longer even works for the site and now prefers the previous arrangement! Members of FIMFiction's staff have stepped down and quit in the midst of this debacle already. To say I am enraged would be a massive understatement... But this is not the New York Jets. We are here for the cake, not the crying. So I'll leave all my complaints where they are and we can move on to the actual fic.

It's Coco. It's anal. It's Coco Pommel The Amazing Anal Horse. Well, she's human in this case, EQG and all that. But still!

All of the fictional characters portrayed herein are of the fictional age of consent in the fictional places where they fictionally take residence.

This piece contains public sexual activity with the involvement of ‘outsiders’ who are, in fact, known to all players. No issues of consent are directly discussed in the writing but the characters have established boundaries and nothing portrayed breaks them.
There is always a Black Door.

Published 2019-12-24 19:40:01 UTC
Last updated 2019-12-24 19:40:01 UTC

The Only Chapter

Mistress Rarity and Coco Pommel

STARRING IN

Coco Butt-er
-OR-
Public, Butt Fun

All of the fictional characters portrayed herein are of the fictional age of consent in the fictional places where they fictionally take residence.

This piece contains public sexual activity with the involvement of ‘outsiders’ who are, in fact, known to all players. No issues of consent are directly discussed in the writing but the characters have established boundaries and nothing portrayed breaks them.

She would never tire of watching Coco Pommel, and wasn’t sure how anybody else could. There was something distinctively attractive and uniquely exploitable about the way the girl walked and held herself. No other target of her desires could manage that combination of demure silence and unintentional poise! Fluttershy had the grace and body of a model, that was for certain. Rarity herself was quite proud of her stance and posture... But this and that were different things.

Rarity stood tall on a svelte frame, giving her leverage and height over many other women her age. For contrast Coco was shorter and built more generously, with curves that promised to fill out even further well into her twenties. It gave onlookers a sense that she was something to be swept into an embrace and protected at all costs... Well, Rarity assumed that was how others felt about her assistant. Her own reaction was far closer to corruption than coddling, and quelle surprise how little distance that corruption needed to cover!

Cover, covered... Ah! That’s what was off about this scene.

“Skirt up, darling.”

Coco wrenched her eyes away from the store’s display of hardcore parody DVDs in order to look at Rarity. There was an overt layer of pleading to her gaze but looking past that? An unmistakable undercurrent of lip-biting desire, something they’d cultivated together over the last year.

“H-how high?”

She had to bite at her own lips upon hearing that, if only to restrain a wicked smirk.
“I didn’t say jump dear, I said ‘skirt up’. That’s what Twilight would call a binary: A skirt is either down, or it is all the way up.”

The two of them were currently well-hidden in the back room of a high-end purveyor of illicit imagery and sexual devices: A porn store, to the crass. The Black Door to its clientele. Very nearly a second home to Rarity, whose tastes were incredibly specific yet served quite well by its industrious owners.

Honestly, there was nothing for Coco to be worried about! The odds of somebody coming through to this section were twenty percent at best given how early it was in the day. Rarity would hear the bell over the door in time to reposition, regardless. Failing all else the interlopers would ideally be too distracted by the cardboard standee advertising Sigourney Beaver’s breakout role in ANALIEN to notice anything amiss.

Even with all that reassurance? Coco did not act, and so Rarity was forced to. She simply stared at the other girl, doing her best impersonation of a particular friend in the process.

Rarity began a silent countdown in her head and watched Ms. Pommel’s expression change with each unspoken digit. 1 as she blankly stared back, 2 as she shook her head, 3 as she checked their concealment. 4 as she balled her fists at her side, 5 and 6 as her chin dipped, an attempt to look intimidating. 7 as her gaze melted away, 8 as she did one final check of the area, 9 as she dropped her hands... And just on cue, Coco lifted the skirt with both hands.

The motion revealed her nigh-on naked bottom quite nicely. Flawless clamshell lips with nary a hair in sight, framed by emerald crotchless panties. A light-catching trickle of wetness down one thigh was also exposed, its presence showing off precisely how much Coco enjoyed following Rarity’s orders.

She was an incurably shy young girl, oh yes: It took her at least a week to open up around anyone new who wasn’t a customer. The thing is that unlike Fluttershy, who came by her nature honestly? Coco’s standoffish nature existed near solely to hide the ravenous sex-drive beneath.

Upon discovering her assistant’s extreme desires and needs, Rarity had taken it upon herself (generous soul that she was) to act as a motivator and outlet for those urges. It was a coincidence that their arrangement led to her getting eaten out to at least two screaming orgasms a day on average... Purely a coincidence!

Selfless motivations aside, Rarity knew how Coco felt. It was a difficult thing to live in a relatively old-fashioned town and work in an incredibly scrutinizing industry at the same time. Venting one’s urges on such youthful displays as skinny dipping might have been acceptable deeper into the country, while in a larger city there could be a kink scene of size and repute... But in the badlands between Canterlot High and Crystal Prep? Here they had each other and their friends.

“Good girl. Be a dear and tuck the front into your waistband for now. I’ll be nice and let you leave the back down. For now.”

That was as good a summary of their relationship as any: ‘Being nice’ amounted to letting the girl cover her ass while leaving her slit to the wind. Neither of them would have it any other way, of course! And Rarity was no stranger to exhibitionism of her own pale skin, no no... They just saved that for special occasions. Today was more run-of-the-mill, apart from this trip to the store and their impending lunch date.

Both were planned well in advance, especially this shopping excursion: They had a special order to pick up and put through its paces! Hence their current meandering perusal of the goods, while they burned time until the store’s operator could bring them their item. Coco gravitated to places where she wouldn’t be seen, and Rarity in turn pushed for more public spaces. From the DVD racks out towards the heels and footwear, past the board games and bachelorette party favors.

Her assistant made a good-natured attempt to pretend to be reading a book off of the wire shelves, but picked it up the wrong way around on her first try. That earned her a swat on the cheeks, and they moved on quickly. Everything had a pace and a measure to it, even the act of waiting. The costume racks would have been too close to the front of the store for exposure’s sake, but thankfully the building had no windows.

“M-miss Rarity...”

“Hmm?”

“I believe you have something in your purse. For me?”

Ohho! Well if she was going to be so bold as to ask in advance, then there was no reason not to indulge her. Perhaps that smack earlier had knocked something loose? Regardless, Rarity dug down into her handbag to find the offending object... There!

She brought her hand back holding a vibrating wand: Half-scale and wireless, perfect for such situations. She flicked it onto the low setting and placed it gently on Coco’s belly. The other girl giggled and tried to swat it away, clearly aiming to push it down... But Rarity was prepared.

“I’m sorry, I seem to have misunderstood: Weren’t you concerned about having an upset stomach before our meal?”

Coco shook her head (briefly fluttering the silk flower in her hair) and swiveled her hips in a show of coquettish refusal, but refused to speak up. This time Rarity placed it along her friend’s shoulders, earning another shake. Arm, neck, upper back, lower... Her cream-colored skin flushed with more heat and more pink with each move down the body. Eventually there were no more excuses to be made, and Rarity didn’t feel like fishing for a verbal answer: She flipped the wand to high and pushed it between Coco’s bare thighs in one motion.

Even before the toy made contact the girl was moaning from anticipation alone. Once it did she leaned down, seeking pressure and pleasure where it was needed most. What a sight the two of them made: A perfectly composed fashionista standing with dispassionate eyes, watching as a far less stoic designer writhed and swung her hips onto a bucking vibrator. She was far from causing any stains with her needy motions... But they would need a bit of restraint just in case.

And so they began to walk. Rarity let her hand (and the vibe it held) trail behind as she moved. Coco had to either keep up or let the delicious stimulation run away without her. It led to such a slow pace that their route felt long, even if the entire store was small enough to see from one end to the other. The key was that their destination was not visible from the entrance, but closed off in a shell of shelves.

After a minute or three of Ms. Pommel’s keening groans and shuddering steps they made it back across the store. A wand like this was certainly no substitute for a leash, but the spirit of creativity lives everywhere if you look hard enough! Now they were positioned well in the back and surrounded with proper sexual devices. Other instances of this wand (she had bought it here, after all) and larger ones beside. Dildos and vibrators, harness straps and the cocks to match, even a display for a custom riding device not unlike a Sybian.

“I have no intention of bringing you off here yet, darling: Do let me know if you’re close, hmm?”

“Of course, Miss!”

She would forgive the lack of ‘-tress’ on the end of that title: They weren’t having a scene in that style today! If they had then Coco would have been in a much thicker outfit, all the better to hide a gorgeous shibari pattern underneath her jacket. Today she had only a simple off-the-shelf blouse and a tartan skirt to protect her from the elements. Although any protection from the second half of that outfit was significantly compromised by their current posture.

The simplicity of it all made it even more delicious to enjoy her frustrations. For the seasoned owner-slash-observer it was clear, the way Coco’s fuzzy feelings threatened to overwhelm her erstwhile decency time and again. Said feelings ebbed and flowed as the two of them patrolled the aisle, varied by everything from the unique friction of keeping pace to the intensity of the toy itself. Eventually when it seemed like Coco couldn’t stand another single second... Peace came and she did not.

Footsteps had begun to approach, but the bell hadn’t rung to signal entry. That left one option, so Rarity pulled the vibrating toy away from her (far more lovely) human toy as the co-owner of the shop approached.

“Evening, Ms. Belle, Ms. Pommel.”

Rarity nodded to the young man from over Coco’s heaving shoulders as her assistant desperately tried to regain her breath and bearing.
“Good afternoon, Mr. Finish.”

“Afternoons, evenings: They all sort of blur together when you work enough nights. And this latest project of yours did keep me up for more than a few yaknow.”

She rolled her eyes blatantly, from one drama whore to another: Matte Finish was many things, but a workaholic had never apparently been one of them. If he put even one minute of extra time into something it was because it was a passion project, not drudge labor.
“I assure the compensation will be sufficient... Isn’t that right Coco?”

The girl shivered and leaned back, straightening her posture and nodding.
“Yes Miss Rarity.”

Matte took the opportunity to reach one hand forward and shamelessly groped her from behind. Not through her blouse, but slipping inside via the inconspicuous hole Rarity had installed in the back of the cheap top. There was a reason Coco was wearing mass-produced clothes to a lunch date, and it was simply that Rarity couldn’t bear to damage designer goods.

“Zuuuuu, not bad at all! ”

Coco continued to shiver and shudder, the toy’s stimulation being replaced by that of a seeming stranger. His motions were smooth and clearly very well practiced, avoiding the straps of her cupless bra to get right to the meat of the matter. Rarity kept her face carefully devoid of any reaction as his fingers rolled and pulled one of Coco’s nipples, and then the other. After a moment she pushed the vibrator forward again, turning it on for just a moment to catch the other girl’s attention.

“Would this be too much, dear?”

“T-too much, f-for sure. But-”

“Don’t worry your little head darling: I wouldn’t force a loss on you today. No, I’ll simply keep myself to... myself? Hmm. Regardless, do you have the new product Mr. Finish?”

He gave her a shining smile from his perverse position.
“There’s a reason I’ve only been using one hand. Just allow me to...”

The brief disappointment in Coco’s eyes as Matte retracted his hand was replaced by a gaping-mouthed expression of surprise moments later. Rarity could unfortunately not see his exact actions since their previous work had knocked Coco’s skirt loose, but she was familiar with the device they’d ordered. Regardless, Matte rattled off the statistics with professional decorum even as he continued to lubricate and prod the young girl’s rear.

“Just shy of seven inches from head to base, five and change of which is insertable. Three-bulbed construction designed to simulate a bead toy, the bulbs are one-point-five, one-point-seven, and fully two inches wide from the top down. The entire thing is vibrating and rotary, with the head bulb capable of three-sixty-degree movement. Seven modes for both, ninety minute battery life from a two hour charge. Remote controlled, of course, courtesy mi amore.”

He held up the device in question with his free hand, and Rarity got a brief glimpse of the matte black silicone skin before the entire thing vanished from view... And made its way straight into her assistant, emphasis on the first syllable.

She didn’t climax from that but it was a near thing, and they both gave her a moment before continuing. Matte’s hands returned through the back of the blouse to attach a pair of clamps, one to each nipple, before he retreated and patted her gently on the shoulder. Rarity took that as her signal to switch back into control, placing the vibrator threateningly close to the new additions.

“How do you feel about your ensemble dear?”

Coco looked down at herself, and Rarity could easily imagine her perspective. The dark red fabric of the blouse mostly hid the clamps in the same way it mostly hid the open-fronted nature of her bra. The skirt beneath it was perilously short, and now in the back her cheeks were being spread by the subtle but insistent handle of their newest acquisition. Her thighs were slick with arousal and her eyes were wild with desire... Which made it all the more heart-breakingly adorable when she put on that perfect salesman smile and dropped a small curtsey to Rarity.

“R-ready for lunch, Miss!”

After that they made their way to the counter and exchanged payment, both for the toy and for ‘services rendered’, as Mr. Finish so politely put it. His better half was nowhere to be seen, but Nickel was rarely on the floor when Rarity visited anyway. When the money changed hands Rarity came away with two additional items: The storage and cables for the new plug (which would be quickly stowed away in the car to avoid Coco getting any ideas about relief) first, and then second... The remote.

It was a subtle and aesthetically pleasing model, with the signatures of the Black Door plain to those in the know: One set of overlapping circular buttons, another shaped as overlapping diamonds, and the power switch was a plain black rectangle. Rarity gratefully palmed it and made a few quick adjustments: Power on, vibration to a 2, rotation to a 1. Coco’s plaintive mewling and slump onto the counter were thrilling and extremely encouraging.

She couldn’t help herself from taking a groping squeeze of her own as she helped the other girl to stand again, relishing the hard metal of the clamps brushing against her palms.
“please”

“Mmmh... If you’re perfectly behaved between now and the restaurant I won’t turn the rotation up until our guest meets us.”

That was good enough to mollify her for now, and the two of them bid their farewells before driving off and out of the plaza. Their destination was not far away, which gave Coco quite the good chance at Rarity’s challenge. If somebody else had been in the car they would have assumed she failed immediately, but they just had different ideas of what it meant to behave perfectly.

For the duration of the drive Coco never let her fingers off or out of herself. Pointer and thumb of one hand were occupied rubbing her clit while two fingers of the other hand pumped in and out. She gasped and groaned and made simply the most delicious noises, while Rarity firmly kept her hands on the wheel and her eyes on the road. The faux ignorance was part of the play, naturally, but even so it was only through repeated practice that Rarity kept herself under control.

The drive went by with incredible speed, given how entertained they both were: Certainly an improvement over listening to the radio or a podcast! Coco took a moment to rearrange herself properly on the way out, and then it was time for the real public exposure. As soon as they entered the parking lot it was a chore to avoid being jostled or bumped by the other customers pouring in from their cars. They both had enough experience to keep their eyes forward and paces nonchalant despite it all... If anything the crowd noise helped cover up the faint slish as Coco’s thighs slipped and slid together.

As soon as they made it through the double doors (into a rather decent mid-scale chain pub whose name Rarity steadfastly refused to learn) Coco stumbled hard. It wasn’t due to the bump in the floor or a customer, but rather Rarity’s own thumb on the rotation button of the remote.

“Rarity!”

Coco’s adorably quiet complaint was overwhelmed by another person saying the exact same thing at the same time. Rarity had said she wouldn’t turn the rotation up until their guest met them, and she was a woman of her word: Sunset Shimmer merely happened to be here ahead of them, that’s all.

It’s not as if Rarity knew that already due to a prior text message. Forbid the thought!

“Pleasure to see you Sunset: How is the new ensemble treating you?”

The taller girl stepped up and hugged them both, either ignoring or failing to notice Coco’s flushed warmth and shivering shoulders. Sunset’s new outfit was a dark umber top with piped purple accents under her favorite jacket, and a matching pair of simple slacks. Rarity had spent quite a bit of time finding the right way to assemble the colors to not look too... excessive.
“It’s perfect, Rarity: And nice to see you too Coco! I know we don’t talk much, but I’m never one to turn down an invite to eat, you know?”

“Yes! Yes. That makes perfect sense, and I’m g-glad to see you too.”

The faint hitch in the girl’s voice could easily be attributed to nerves and not her tempestuous employer putting another thumb-press onto the remote: The current score was Vibe 3, Rotation 3, Coco either 0 or ∞ depending on how you count. Tie game, as Rainbow Dash would say... Probably. She did her best to tone out anybody’s excessive sports metaphors, thanks to years of prior over-exposure from her father.

“Great! Let’s grab a seat, I am so hungry I... won’t make that joke. Too easy.”

After the greeter moved them through the restaurant (causing several close-calls with Coco’s skirt and the tables they passed) they ended up at a secluded table with a singular wrap-around booth. Rarity sat first and locked her eyes with her assistant’s: It was clear she belonged in the middle today. Sunset followed in and predictably slid hard onto the plush seat, running right into Coco and bumping all three of them together.

That innocent little nudge set the tone for their entire meal. Rarity would gently brush Coco’s hair from her cheek with one hand and adjust the toy with the other, her indignant squeak clearly just from the affection. The poor girl was starting to resemble the even-more-reserved Fluttershy when she stuttered and stammered out her order, but unlike their waiter? Rarity knew it was because she was two fingers wide and palm-deep in the girl’s other lips the entire time.

Drinks arrived and Coco practically scrambled for her water, seeking the cold to try (and fail) to beat back the heat inside. Bread and a simple calamari platter arrived before their entrees, and while Coco ate a bit she spent more time trying not to coo and cry out, grinding her rear down into the bench. The entire time, Sunset Shimmer was making probing little statements as if she knew what was going on, leaving her entirely on edge... While Rarity just kept her flawless smile and pretended not to notice.

Vibe up, vibe up... Oh why not, vibe up again.

Coco stood up abruptly and stars was Rarity tempted to take that face-level skirt as an invitation, but they were in proper public even this far back into the restaurant. The Black Door or the music room at school were one thing, this was another... Regretfully.

“I, I, uh, I’ll cu... come r-right back!”

Her steps were uneven as she fled, and it was a relief for Rarity to finally break down giggling when she broke the sight-line. Sunset, for her part, just raised one eyebrow and waited to get her explanation.

They decided to wind down after their meal with some simple digestif, virgin of course: Two of them would be driving and the third abstained as a matter of course. The waiter knew them so he probably would have served them had they asked? But it wasn’t a drinking sort of day regardless. The three of them were getting their merriment from other sources.

Specifically, Rarity had her palm laid flat against Coco’s mound and clit, middle and ring fingers expertly curling inside her passage. Coco’s toy had been going on a rollercoaster adventure up and down ever since she returned from the lady’s room, and was currently pushing well up towards the peak on both sides. She was close to the peak on both sides as well, between Rarity’s tempered teasing and the toy’s merciless mechanical ministrations.

Sunset had her cheek in her hand, leaning onto the table and looking at the others intently. Her expression had that soft ‘Awww, look at the lovebirds’ nature to it, despite the true situation.

Waiting for the perfect moment to strike, when Coco was inexorably pushed up towards the edge again... Rarity used her free hand to take a sip of her imitation rabarbaro. Her gorgeous assistant shivered and shook and tried to open her mouth several times, failing as she had to gulp down moans and screams... But then she saw the glass. And felt the palm. Around which time the vibration in her toy kicked up again, and her eyes went wide.

“B-both hands... The remote?”

With that same lazy languid grin, Sunset Shimmer held up the little present Rarity had passed her in Coco’s absence earlier: The very remote in question. She very deliberately laid a thumb across both Up buttons and pressed down, catching Coco’s eye to eye at the same time.

Coco screamed, both hands coming up just in time to muffle it. Rarity felt her squirm and clench and squeeze as the orgasm rocked through her body, but didn’t let up for a moment. Coco’s sides were heaving and her shoulders practically vibrating themselves as she rode out the climax, barely containing her voice. Rarity didn’t even stop as she felt warmth and wetness crawl along her wrist, merely relishing in it and urging Coco on. The tail-edge aftershocks of the first top-out lead straight into a second thanks to her unrelenting stimulation, and a tiny gasp escaped her fingers as her breath caught.

Sunset watched the entire thing with a far hungrier gaze than before, her ignorant act replaced with wanton desire and interest. They’d have to arrange for something to deal with that in the future... Although not the future soon, as Coco was currently busy slumping into both a literal and metaphorical puddle of femininity in the booth. Really, it was a good thing Rarity had told Sunset to pack a towel and a spare skirt in her purse or the cleanup could have been... complicated.

A few hours later (their escapades and escape having been pulled off without a hitch) Rarity was tucking Coco into bed for a nap: She’d have to get back up for the evening’s festivities with all of their friends, but deserved some rest after such an exquisite display. The designer ran a hand along her assistant’s cheek and brushed her hair aside again, laying a quick kiss on her lips as the shorter girl snuggled her way deeper into the blankets. She really never would get tired of watching this girl, no matter the time or place.

“Happy birthday, darling.”