Sisterly Games

by Rimmer

The Fourth Challenge

Previous Chapter

The chill of the next room immediately made Celestia regret stripping down. She wrapped her arms around herself, squishing her voluptuous breasts close to her chest as she walked up to the only thing occupying the small room: a single, stone table. Luna came up beside her, inspecting the two, neatly set boxes sitting on top of the smooth granite. They were wrapped in an intricately tied, pink bow. They almost looked like a pair of chocolate boxes that two lovers would gift each other on Hearts and Hooves Day.

“Welcome to your next challenge, my dears!” echoed Chrysalis. “I think you’ll like this one.”

“That is doubtful,” muttered Luna as she eyed the boxes with suspicion.

“Whatever do you mean, Princess?” Chrysalis asked, placing sarcastic emphasis on the title. “They’re chocolates! And I have it on good authority that you love chocolate.”

If Luna needed any other confirmation that the boxes did not, in fact, contain chocolate, there it was. “We’d be surprised if they did indeed contain any confections at all,” she replied listlessly as the two alicorns came to stop before the table.

“Well then, open them up and be surprised,” Chrysalis taunted.

The two sisters hesitantly lifted the lids off of their respective boxes to reveal what appeared to be two, matching sets of perfectly normal chocolate truffles. But, appearances could be deceiving, and Luna was not going to assume these were normal at all. “So, what is our challenge?” she asked, eager to get whatever this was over with.

“Oh, I simply wanted to give you a treat after all of your hard work,” Chrysalis drawled. “So I had my drones go out and fetch some chocolates for you.” There was a pause, just long enough to let the two alicorn’s regain some modicum of reassurance before she continued, “Buuuuut… it appears that there was some sort of mix up along the way. One thing led to another and it turns out that some of those chocolates were actually replaced with some of my Hive’s droppings.”

Both sister’s faces fell as Chrysalis chuckled maniacally. “They just look so similar, you know? I’m having trouble picking them out. So I’m going to need you two to go ahead and taste them all to see which are chocolate and which are shit! You can mark them with that nifty little marker right there.”

“You’re joking,” Celestia said bluntly as Luna picked up the brown-colored marker to inspect it beside her. “What the hell is it with you and shit, Chrysalis?”

“Mmmm, didn’t we go over this already? Literally in the last room?” the changeling replied, her voice thick with smugness. “If you need a reminder… It’s just so… fucking… hot. And it’s deliciously delightful finally seeing you two take your proper place in this ecosystem.”

Celestia glowered up at the noncorporeal voice. “You are a disgusting creature,” she spat.

“Yes, so you’ve said, so you’ve said,” Chrysalis muttered in a bored tone. “Get some new lines, Princess. These ones are getting stale. Speaking of which…” she trailed off with a mirthful chuckle. “You wouldn’t want your chocolate to melt now, would you?”

As with the previous challenges before it, both sisters now knew better than to hope they could weasel their ways out of this one. They turned their attention to their boxes and prepared themselves for the task ahead. The eldest sister went first, forcing down her hesitation as she reached into her own display of chocolates and gingerly plucked one truffle from the bunch.

Celestia immediately knew what she had bitten into as her teeth cleaved through a soft, gritty chunk of unidentifiable shit. The greasy paste smeared into her mouth as she reluctantly chewed the disgusting waste, and she held back a retch as it hit the back of her tongue. She could not accurately describe the flavor assaulting her tastebuds - equal parts bitter, savory, nasty, and a sickening undertone of sweetness crept along her tongue, and the alicorn needed to resist the immediate urge to spit it back out. It was no easy task.

And the worst part was, that was the first “chocolate.” The rest of the box was still full and still left unidentified. Celestia forced herself to swallow, her entire body shuddering as the thick scat slid down her throat. It left a horrendously foul trail, and the woman could practically feel the greasy paste as it descended into her stomach with a sour turn. But, refusing to show any weakness, Celestia marked the empty space with the brown marker and powered on.

Beside her, Luna was already on her third truffle. She had seemingly determined that the first two were varying percentages of dark chocolate with little trouble. This third one, however, concerned her. It was definitely softer than the first two, and was far more bitter. But it had a sweet hint that could have been attributed to a very dark piece of chocolate. The texture, however, matched the shit she had consumed earlier - and that was what was worrying.

She couldn’t tell.

If it was chocolate, it wasn’t very good. It wasn’t as foul as the sour shit she had consumed a few hours ago, and it wasn’t at all comparable to the smegma-mixed creamy paste that has come from her sister’s anal aftermath, either. But, it was eerily similar to the earth pony waste from earlier.

Luna swallowed thickly and hesitantly picked up the brown marker. Her hands shook slightly as she uncapped it and went to mark down the piece as being feces, but she hesitated. The fact that it didn’t taste grotesque was giving her pause - it couldn’t be shit, could it? There was no way it would taste okay if it was.

She capped the marker and put it back down, and reached for the next chocolate instead. Luna’s eyes darted over to her sister as Celestia let out a barely-contained whine beside her, a grimace plastered across her face as she chewed through what was most likely shit. A pang of pity filled the younger alicorn’s heart, however there was an underlying sense of satisfaction at seeing her sister this way. After all, Luna had forced down how much scat at this point? It only seemed fair that Celestia got her share.

Turning back to her own task, Luna grabbed the next piece of “chocolate” and popped it into her mouth. Her teeth cut through the hard, outer shell like it would any truffle, but it turned out that it was simply hiding its own, nasty center. A soft, greasy paste smeared across her teeth and stuck to her tongue as she chewed through it and an earthy, disgusting bitterness overwhelmed her taste buds. As she chewed, Luna was brought back to her first challenge when she had bitten into that horrible pile of unicorn feces. In any other sense, it would probably be disconcerting that Luna could so readily discern that she was chewing through unicorn shit, however now, Luna felt herself inwardly sigh with relief. Despite its foul flavor, the choice was obvious. This definitely wasn’t a bonbon.

She quickly took the marker and marked off the spot as being shit and swallowed with no trouble at all. It was only after she realized how easy it was that Luna’s face paled. She waited for the sickening feeling to come, but all she felt was a growing sense of shame and embarrassment at what she had just done.

Celestia was still struggling, visibly disgusted by the task she was doing. But she had worked her way through most of her box. There were only a few chocolates left. Luna’s box, meanwhile, only now had four missing. She needed to pick up her pace if she was going to finish this challenge.

As the princess of the night began to pop truffle after truffle into her mouth, her sense of unease only grew. There were very few choices that were obvious to her, and many of them were guesses. Was the bitterness she was tasting just a darker brand of chocolate? Was the creaminess the result of a softer stool? Luna’s heart raced as she realized she couldn’t really tell most of the time, and her panic did nothing to help her attempt to discern which was which.

As she swallowed the last of her coprophilic confections, she frowned at the lingering, bitter taste in her mouth. Her own judgements were different from her sister’s, she could tell that from first glance. Celestia had labeled far more of her truffles as shit, whilst Luna had only marked down three. The dark chuckle that echoed in the cavern only helped to stir her anxiety even more.

“Well, I suppose this is where the phrase practice makes perfect goes to die,” Chrysalis mused as both sisters anxiously awaited the verdict. Luna’s face fell as she realized what the Queen’s words meant. “You’d think after eating so much shit, you’d be able to identify it more accurately, Princess Luna,” the voice said with chiding glee. “Unfortunately, it appears that you could only correctly identify one piece of shit. One, that I might add, was so disgustingly foul that even I could barely bear the stench as I squeezed it out of my own, tight ass!”

Somehow, the realization that it was Chrysalis's own load that Luna had identified soured her stomach even more. The idea that she had a personal hand in the mare’s downfall was almost worse than losing, adding even more insult to injury.

“What’s our punishment?” she asked sullenly, barely audible over Chrysalis’s torturous snickering.

“Oh, it’s no fun when you accept your fate!” Chrysalis booed as her laughter died down. “It’s boring.” There was an exasperated sigh as the empty boxes popped out of existence before the two princesses. Then, perhaps the most unexpected sentence that both women had heard in the cavern yet was said: “I have no punishment for this one. Move on to the next chamber.” A single door opened into the next chamber.

Against her better judgment, Celestia gave the admission pause. “What?” she asked in disbelief.

“The mental torture of becoming so used to the taste of scat that you can no longer tell the difference is a far more vile punishment than any sexual debauchery I could throw at you,” Chrysalis said with disinterest. “And as I already mentioned, it’s no fun when you don’t play along.”

The gears in Celestia’s head turned as she took a hesitant step towards the opening. Maybe her initial attitude towards this game was flawed. Perhaps simply playing along was not in fact the way to best Chrysalis at her own game.

But, her thoughts were quickly interrupted as they entered the next room. This cavern was much smaller - less than half the size of the smallest room they had woken up in. All that occupied it was a small plinth with an assortment of dildos and two, shallow golden bowls. The dildos seemed to be modeled after various equestrian races. The alicorns could pick out the penises of a horse, a dog, and then two more tapered shafts, most likely from a deer and maybe a yak.

Upon closer inspection, however, Celestia realized that they were not, in fact, dildos at all. Her disgust and horror rose as she saw that they were actually real, pulsing cocks - each attached to a sleek, metal base through some nefarious, arcane means. As if that were not enough, however, each phallus also featured a varying degree of filthiness. Some were caked in a thick layer of deep, brown shit, while others were crusted with the aging smegma of an unwashed dick. The woman swallowed thickly at the sight and the stench, but otherwise forced herself to have no visible reaction.

Luna just sighed upon her own realization. Perhaps it should have concerned her that this was barely surprising, but at this point, she just wanted it over with. “What is the point of this challenge?” she asked, ready to get whatever this was over with.

“Surprise!” Chrysalis suddenly shrieked, startling both of the alicorns. “This is no challenge at all! This is, in fact, your punishment for losing the last challenge, Luna!” The changeling queen’s evil cackling filled the cavern as Celestia’s eyes widened in shock and Luna’s face slid into a stoic sneer.

“Of course,” the princess of the night muttered. “How foolish of us for presuming we would get off so easily.”

“Beside each of those creature cocks are two bowls, as you can see. One is filled with a silky, sweet molten chocolate. The other…” she trailed off, building suspense even though both alicorns knew exactly what filled the other bowl. “The other bowl is the digested remains of some delicious, succulent love.” Neither of the two princesses offered a response, and so she tutted with annoyance. “Shit. It’s a bowl of soft, changeling shit. My shit, actually, if you must know.” Silence met the anticlimactic reveal and Chrysalis groaned. “Tough crowd, tonight I guess.”

After yet another moment of painful silence, she went on explaining the rules. “Celestia, your job is to take each of those living dildos and, at your discretion, coat them in one of the two treats. Luna, you will don the provided blindfold and then determine by taste which substance the proffered cock has been coated in. Any questions?”

Silently, Luna grabbed the blindfold and lifted it to her face. “How much time do we have?” she asked reluctantly.

“Oh, no time limit on this one,” Chrysalis answered cheerily. “Take you time with this one. Enjoy it. Especially you, Celestia. I have a feeling this might be… fun for you.”

Gingerly, Celestia took hold of one of the disembodied dicks in her hand. The one she chose was equine, the thick shaft of a girthy horsecock that flared out into a wide head. It was recognizable and familiar, and hopefully, bound to be the least uncomfortable. Her face twisted at just how warm and alive it felt, and she suppressed the urge to drop it as it twitched in her hand. It felt exactly like the real thing - pumping with blood and lust, begging to be sunk into a waiting, moist cavern. She swallowed thickly before guiding it to the first pot, and dipped it inside to coat the veiny length with whatever was inside.

The slop was thick, and resisted Celestia’s efforts to sink the penis into it. She was forced to press harder, and the cock throbbed in her hand under the added weight. Slowly, it sank into the bucket and Celestia let it linger in there for a few moments before pulling it back out.

Sure enough, the length of the horsecock was coated in a deep, earthy brown substance. For a reason she would struggle to describe later, the white alicorn brought it up to her face to take a tentative, curious sniff. Her nose wrinkled as the pungent scent of stale scat wafted into her nostrils and she frowned.

It was repugnant, and Celestia quickly lowered it away to bring it close to Luna’s face instead. The alicorn on her knees sniffed the air as she sensed the object in front of her, and a similar look of disgust crossed her face. “We do not need to taste this one to tell that it is, in fact, coated with feces.”

A disappointed tutting echoed in the cavern. “Oh, but that’s not how this game works, Lulu,” Chrysalis taunted. “You have to taste it, otherwise you can’t really know. Maybe it’s just bad chocolate.”

Behind the blindfold, Luna’s eyes narrowed into a glare. Her lips turned upwards into a sneer and she, without any further hesitation, opened her mouth wide. She lolled out her tongue, rolling it out like a red carpet in waiting, ready for her sister to slide the fetid, shit-coated horsecock into her maw.

For her own part, Celestia felt some hesitance to feed her sister the dirty dick. However, the sight of Luna down on her knees, mouth open and waiting as a single strand of drool slowly dripped down her extended tongue… well… she’d be lying if she said it didn’t look downright erotic. The bareness of her body did nothing to quell her growing sense of arousal, either, and she swallowed thickly as she pushed the shitty dick into her sister’s mouth.

Luna held back a gag as the disgusting phallus slid along her tongue. The vile, sour taste of smegma and shit was nearly overwhelming, although they were flavors she had tasted before. Her previous experience did nothing to truly help, however, as she fought the urge to wretch. Not wanting to encourage any further punishment, Luna did a diligent job of running her tongue along the veiny length of the cock, getting an unnecessarily plentiful taste of the foul coating.

The cock pulsed in response to the attention, and Luna decided that was her que to withdraw. Her instructions were to taste the fecal coating after all, not clean the thing. She pulled her head back, and Celestia in turn withdrew the bodiless penis as well.

“And your answer is…” Chrysalis prompted as Luna attempted to clear the taste from her mouth.

“Shit,” Luna replied dully.

As Chrysalis broke out into a gleeful cackle, Celestia briefly froze at her sister’s cursing. It wasn’t like her sister to use such vulgar, improper language. As a matter of fact, Celestia could probably count on one hand how many times she caught her sister swearing since their youth. She shook herself from her shock quickly, not wanting to prolong Luna’s torture. The tall woman quickly placed the horsecock back on the plinth and reached for the second cock, instead.

This one was distinctly canine in shape, a bright, red shaft leading out from a pronounced, bulbous knot before tapering down into the thin point at the end. Unlike the horsecock before it, it was significantly cleaner, despite the rivulets of sticky pre that were leading down the throbbing length. There was a pungent, musky odor that clung to it as well, strong enough for Celestia to smell even without bringing this one up to her face.

In an attempt to try and mitigate further discomfort for Luna, Celestia dipped the doggy dick into the second bowl. This one was presumably filled with chocolate rather than scat. It met little resistance as it was dipped in, and came out with a clean, silky coating of brown. Definitely chocolate. She held it out to Luna, who took a hesitant sniff before opening her mouth to accept the proffered dick.

Luna barely held back a moan as the sweet taste of chocolate hit her tongue. It was rich and creamy and perfectly delightful in so many ways. Her tongue quickly wrapped around the girth of the dog dick in her mouth as she savored the delicious confection. The cock throbbed as she scraped the chocolate coating off, but she paid it no mind. The taste was such a welcome reprieve from the bitter, foul taste of shit that she desperately wanted more of it.

Above her, Celestia bit her lip as she watched Luna slobber over the phallus. The sight was even more arousing than before, probably because the smaller alicorn seemed into it a lot more than the shitty horsecock. Her pussy was now drooling in between her legs, and she shuffled slightly to try and calm herself down. It did little to no good however, as her nipples began to poke out in stiff peaks and her pussy only heated up even more.

Luna got so lost in cleaning the dick that she failed to notice its fervent twitching as she continued. She only realized too late that the owner of the cock was quickly approaching their orgasm when the knot swelled against her lips and a jet of thin dog cum fired into the back of her throat.

She wasn’t expecting the sudden ejaculation, and she coughed as she pulled herself off of the cock. This, of course, had the unintended side effect of spraying her face with the next few ropes of semen as she tried to clear her throat. Even with the blindfold, she squeezed her eyes shut as her muzzle was dampened with salty jizz. After a few, short spurts, her lips were covered with dog cum, and her tongue unconsciously lapped up the thin, cloudy fluid dripping off of them before she regained control and clamped her mouth shut.

Celestia quickly pulled the jerking canine cock away, narrowly avoiding the next spray of cum to her own face as she hastily set it back down on the table. The remainder of the dog’s orgasm lazily spurted up into the air and splattered down around it in a vile, musky rain. A few thicker oozes of cum drooled out of its urethra and dribbled down the side of the red, tapered shaft, making the throbbing knot glisten with its own ejaculate.

“Wow, quite a show,” Chrysalis commented as Luna reached up to wipe the cum off of her face. “You really only needed to taste the dicks to complete the challenge, not that I’m complaining.”

“Chocolate,” Luna said obstinately, gesturing to Celestia to give her the next one.

The deer dick was already dirty, coated in a then, greasy layer of aged scat, but Celestia hoped that a nice coating of chocolate would mask the taste. Luna was more conservative with this one, only letting it rest in her mouth for a few short moments before pulling back. She did, however, keep her lips tightly sealed to try and scrape as much of the chocolate off as possible, savoring it for the short time she could before announcing, “Chocolate,” and opening her mouth for the next one.

The yak dick, by contrast, boasts a thick, clumpy collection of rancid dick cheese. It was thinner than the deer dick, but had the same overall tapered shape. Celestia cringed as she looked it over, thinking back to the nasty changeling dick that had been offered to her earlier. She could only pray that the chocolate would help Luna choke it down.

As she lowered it to the bowl, however, both suddenly flashed with green light and switched places - no doubt the work of Chrysalis’s devilish magic. But she couldn’t stop the downward motion she had already begun, and the stinky bovine cock slipped into the thick bowl of feces with ease. There was no time to stop it, and Celestia silently cursed to herself as she dragged it out.

Predictably, it was coated in a thick layer of shit, and the alicorn frowned at the sight. But, there was nothing she could really do about it given the circumstances, so she instead lowered it down and held it out for her sister to taste.

Luna’s nose curled at the sudden stench. Had Celestia really teased her with those two, tasty chocolate-coated cocks just to screw her over with another filthy one in the end? She had thought that her sister was trying to be kind, but she was apparently wrong. She had just been toying with her, instead.

“I’m sorry,” Celestia whispered, as if reading Luna’s mind.

The apology did nothing to help though, as the bitter, sour taste of smegma and scat smeared across Luna’s tongue. She scooped as little of the vile mixture off as she could, but it was still far too much for her liking. Luna held it in her mouth for a moment as she found the strength to force herself to swallow, the thick, putrid paste sliding down her throat with much resistance.

“T-that…” the younger alicorn stammered out as soon as she could. “Was vile.”

Chrysalis only laughed once again in response. “Mhm… so was it chocolate or shit?” she asked mockingly.

Luna shook her head with disdain as she replied, “Feces,” and smacked her lips in an attempt to rid her mouth of the nasty flavor. Celestia carefully set the yak dick back down on the table, cringing as a stray, greasy smear of smeggy shit clung to her thumb. She shook her hand, letting the off-color paste splat onto the floor as she refocused her attention on trying to calm her arousal down.

It was in vain, however, as when Luna removed the blindfold, the first thing she noticed was the bright, red blush adorning her sister’s face. The second, was the subtle shuffling of her alabaster thighs together, barely concealing her noticeable arousal. Her eyes paused on the wet snatch for a few moments before they trailed back up to meet her sister’s gaze. Her trail got interrupted once again by the filthy smears on Celestia’s perfect tits - brown streaks smearing the supple, white flesh around the tantalizing globes. Luna’s own arousal began to unconsciously grow as she realized just how hot it was to see her own sister in such a state. Filthy and horny, all because of her.

"Hmmm," Chrysalis suddenly hummed. "Looks like you spilled some," she commented, and both alicorn's eyes darted down to the floor where a thick chunk of shit lay. "Wouldn't want to let that go to waste, now would we? Maybe you should feed it to your dear sister, Celly?"

Celestia cringed at the unnecessarily fond nickname. She didn't really want to do it, but if this sequence of events had done anything, it had reinforced that compliance would be the only acceptable way forward in this game. So, with little hesitance, she crouched down and took the piece of soft piece of crap in between her finger and pried it from the floor.

Luna's eyes followed her sister's crotch as she squatted down and her beautiful, white pussy parted with the movement to let a strand of feminine arousal leak out. She was so distracted by the sight that she barely noticed as Celestia lifted the piece of Chrysalis's shit up to her lips and gently pushed it forward. Her mouth parted, taking in the foul feces, and Luna only realized what had just happened as the vile flavor hit her tongue.

"Eat it," Celestia quietly ordered, and Luna was so taken aback by the sultry tone in her sister's voice that she did just that. Her teeth cleaved into the soft turd and broke it down into a thick paste before she swallowed it with barely any trouble at all.

“Show her your mouth,” Chrysalis suddenly ordered.

The demand broke Luna from her trance. “W-what?” she inquired, her eyes darting around the empty chamber.

“Show your sister your empty mouth. Celly, be a dear and make sure that she has swallowed everything.”

Luna was about to protest more, but froze when she felt Celestia’s gentle fingertips take hold of her chin and turn her head to face her. Their eyes met, and Luna obediently opened her mouth wide and stuck out her tongue to show off her empty maw to her sister. Celestia peered inside before nodding in satisfaction and letting go, instead offering her hand to help Luna up.

The younger alicorn took her sister’s proffered hand and stood, swallowing thickly as she stumbled a few steps into the voluptuous, white bosom of the other princess. Celestia, predictably, caught her and steadied her, and the two shared a silent look as the next doorway opened, and beckoned them into the next room.

Both of them, unbeknownst to the other, were thinking similar thoughts of mixed arousal and trepidation as they parted from each other and took the first steps towards their next challenge. Whatever awaited them they would face together, for better or for worse.