Metamorphilia

The dice, bottle, and card deck floated over to Rarity's seat and landed softly on the table. Rarity looked at them with both heat and hesitation in her eyes. Then her forehead creased and she frowned. “Have I… I believe I've participated every other turn so far. That seems… unlikely, doesn't it?”

Twilight though for a moment, then nodded. “Yes, although the odds aren't that astronomical. Why, do you think Discord is pulling something?”

“Oh, I don't think so. And why would he care about me in particular? If anything I would have expected him to rig it toward you or Fluttershy, since he has more history with you two. But the bottle has only landed on Fluttershy twice and the same on you. I suspect it is just coincidence.”

With a pulse of blue magic, the bottle flipped onto its side and spun, the traces of magic glinting through the dim glass rather beautifully. It rolled to a stop pointed at…

Pinkie.

The mare looked at the bottle cross-eyed. “Me again!”

“Yes, apparently. You again.”

Rainbow huffed. “Me and Twilight are starting feel a bit left out.”

“Oh hush,” Rarity admonished. “You went two turns ago, and Twilight…”

The dragon waved a dismissive hand and said, without really thinking, “I don't mind. I kind of like watching just as much.” Then her own words hit her and she blushed furiously. “I m-mean, not in a creepy way! B-But, but—”

“Relax, darling,” Rarity said soothingly. “None of us took it that way. And I rather enjoy you watching me as well.” The air between them seemed suddenly electric. She turned back to Pinkie Pie. “Do you think you're ready to go again, dear?”

Cum was still pooling out of Pinkie's pussy and saturating the chair, spilling onto the floor. She didn't seem any worse for it though, perking up and meeting Rarity's gaze enthusiastically. “Yup! I hope you don't mind sloppy seconds though, because I think I'm going to be dripping for a while.” She said the last word in a sing-song voice, shooting a sideways glance at Applejack, who only chuckled at the reminder.

“I got a rather thorough taste of Applejack's emissions a few turns back,” Rarity reminded everypony. “But I wouldn't mind a second helping. Here's your die back.”

Pinkie snatched up the cube as it slid across the table toward her and balanced it on a hoof. Rarity floated her own in the air, and then they tossed them in sync.

Rarity shivered in silent delight as a wave of refreshment washed over her, a heart symbol showing on her die. A simple recharge, better that a trip to the spa and a sensation she very much appreciated.

Pinkie Pie wiggled, shifted, and finally barked out a laugh as her coat and flesh and bones rippled and changed. Somehow, even as her face grew blocky and her chest straightened and her whole body grew, she managed to stay almost motionless in her seat. Once the change was finished she smiled down at her die. Interlocking male and female symbols, surrounded by two curved arrows.

Rarity laughed delicately. “I suppose at this point I shouldn't be surprised. Welcome back, Berry.”

The stallion formerly known as Pinkie Pie looked down at his body and the magical die that gave it to him, then at Rarity. He gave her a small smile. Then a realization glinted behind his eyes, and his smile grew wider and wider. “Ooooh! I hope I get to try out something new!”

“New?” Rarity said, eyes narrowed. “What in Celestia's sake could possibly come up that you haven't tried?”

“There's loads I haven't tried with penis! Oh, and I bet I have a prostate now, too! Everypony always talks about how much fun those are.”

Rarity scrunched up her muzzle a bit at that. “I'm sorry, Berry, but I don't exactly have the right equipment for that. And I am not sticking my tongue that deep inside anypony's rear. I have my limits, and one of those is the rectum.”

“That's okay, Rarity. I'll try everything out one way or another, even if it's not tonight.” He placed a hoof on top of the card deck. “Ready for the challenge?”

“Ugh, yes, although considering what I just said, I have a feeling it will just so happen to say 'tongue-fuck Berry' on it, or something along those lines.”

Berry slid the top card off the pile and flipped it face up on the table. His smile didn't flicker for even a second. “Hurray! It's one I was hoping for, although the extra bit here sounds tricky.”

“Tricky? I suppose that makes sense. After all, my last challenge was near impossible, so why would this one be any different? I swear, that draconequis has it out for me for some reason.”

Twilight perked up. “You are… you are having fun though, right? We can always stop and do something else if—”

“Nonsense, Twilight. I'm having a splendid time, and it's all thanks to Discord pushing us out of our comfort zones a bit. I am simply remarking that the random elements of this game seem to have an agenda of sorts.” She turned back to Berry. “Now, what does it say?”

“Have anal sex using only natural lubricant,” read Berry, voice tinged with excitement. “I love taking it in the other hole, and the ponies giving it seem to love it too!”

Rarity fidgeted in her seat, her face flushed. The thought was undeniably sexy, but… “I'm not entirely unfamiliar with anal, but without proper lube? Pardon me for saying so, Berry, but not even a stallion as charming and talented as you could possibly make that a pleasant experience.”

He grinned and shimmied his chair back away from the table, then spread his thighs to reveal his cock, hard and almost completely painted white. “Looks like Applejack's cream filling didn't have anyplace to go but out when I transformed,” he said. “And I think there's a lot of marecum mixed in there too. Think it's enough?”

Rarity blinked a few times at the sight. In almost any other situation, it would have repulsed her, but knowing it was her friend's dick, covered in another of her friends' fluids… She stood up a bit stiffly and turned around to assume a similar position to Pinkie Pie during her last turn: her forelegs braced on the edge of the table, her hindlegs spread behind her, tail up and far out of the way. “I still expect some attention first!” she cautioned the eager stallion.

Berry trotted forward like an excited puppy and immediately buried his face between Rarity's cheeks, licking and sucking at her already-dripping slit, gathering as much of the sweet nectar as he could, and then moving up to her pucker and lathering a mix of saliva and her own emissions across the tight muscle, driving the tip of his tongue inside to spread the improvised lube all around her tailhole.

Rarity's spine bowed and flexed, and expressions of pleasure and bliss slid across her face. She bit her lip, her eyelids fluttered, she quietly moaned. Her eyes alternated between staring down at the table before her and looking up at Twilight Sparkle, who was conveniently directly across from her and apparently very interested in this turn in particular.

The dragon wasn't drooling, but Rarity could see the gathering of saliva around the edges of her mouth as well as the regular efforts she was making to keep her jaw closed and tongue where it belonged behind her teeth. Twilight hadn't showed much interest in wielding a penis herself during their game, but perhaps she was curious about anal sex? Or was she just eager to watch Rarity, in her natural form, getting fucked right in front of her?

Well, if that was what the alicorn-turned-lizard wanted, Rarity would make it count. Maybe, if she did her part, fortune would repay her in kind.

She wiggled her hips and purred, “Let's move on to the main event, Berry dear.”

Berry paused, tongue still buried deep inside her pussy. He retreated with a parting lick, gathering a few more droplets of her arousal before withdrawing and rearing up to mount her. His torso landed atop her with surprising grace, and his forelegs hugged her sides wonderfully. He shifted forward and brought his hips up against her, his length laying along the valley of her rump and sliding slightly against her pussy.

“Nice and slow,” she said. Rarity did her best to relax her body and loosen her sphincter, searching for that sweet spot of fine muscle control that allowed anal sex to work. Unfortunately for her, she didn't practice this particular act enough to find that control on time.

The blunt tip of Berry's respectable cock pressed against her asshole, gentle and patient despite the excited tremors she could feel coursing through the dominant pony atop her back. Slowly, as if crossing a thin sheet of ice, Berry added pressure. Rarity's stomach flopped, and she put all of her concentration into relaxing—a bit of a paradox, sadly. Even as she felt his slick cock starting to spread her open, she couldn't help reflexively clenching her ass at the intrusion.

“Deep breaths,” Berry whispered in her ear. He moved his hooves in slow circles on the sides of her barrel, massaging the muscles just behind her ribcage. The competing sensations, the anticipation, the enraptured look on Twilight Sparkle's face—all of it combined into a wellspring of stimulation. Rarity cooed, her tail whipping up even higher, the end arcing down over Berry's back.

And then Berry pushed again, and suddenly the head of his cock slid inside her. She let out a loud, throaty moan and her eyelids fluttered as she clenched around the thick shaft, delighting in the feeling of being filled.

The tip of Twilight's tongue slipped from between her lips and hung down the side of her mouth. Her reptilian nostrils sucked in breath greedily, although whether she was desperate for air or the scent of Rarity's arousal was anypony's guess. Although perhaps not a difficult guess.

Berry stayed still for a moment, giving Rarity an extremely welcome opportunity to adjust. She mastered her breathing and waited for her pulse to stop racing and her muscles to stop reacting to the storm of signals coming from her ass. She exhaled slowly and lifted her hips a bit, immediately biting her lip at the fresh wave of sensation.

“K-keep going,” she said raggedly. Her eyes never left Twilight Sparkle, and Twilight's eyes never her.

Berry thrust inside, moving glacially but constantly, and didn't stop until his medial ring reached her tight opening. Rarity whined and moaned and twitched the whole while, her slit starting to drip in earnest as the ache of being stretched faded into simple pleasure.

After a moment's pause, Berry started to pull back, inch after inch sliding out of her ass. It wasn't quite as smooth as personal lubricant, but the cocktail of semen and marecum did its job, and in a second Berry had only the tip of his cock inside her again.

Rarity gasped as the wider head pulled at her tailhole, and she pushed herself backward on Berry's cock to recapture a few inches. Her hips rolled and jerked, eager to speed things up a bit.

Berry took the hint. He thrust inside with one steady stroke, this time deep enough that his ring slipped in as well, then back out, stretching her ass twice in quick succession, and Rarity's clit winked twice in time. Again she pushed back, and Berry thrust to meet her, and their hips met for the first time. Rarity groaned as the tip of Berry's cock pressed against her insides and glanced on her G-spot, making her pussy wink again and release a spurt of fluid. Berry withdrew in one motion, then thrust back in with enough force to jostle her entire body.

With each motion, each clench of her ass and tap on her deepest walls, Rarity was reminded why she didn't partake in anal more often. It was just enough stimulation to drive her crazy but almost never enough to get her off, and there wasn't much even a skilled partner could do about it from their position.

Unless they were a unicorn. Rarity's horn glowed as she ran a trace of magic up against her lower lips, teasing them open, pressing gently against her button. Magic had its own disadvantages, of course. It was smooth and textureless, never quite the right temperature, and in general paled in comparison to physical touch. But, with her ass filled with Berry's shaft, tapping her G-spot every few strokes, and her vision filled with Twilight Sparkle's shocked and wanting expression, it was enough to bring an elusive orgasm within reach.

As she relaxed further, Berry started to speed up, sliding in and out with every other heartbeat, the ridges and rises along his cock stimulating her ring in a slightly different way each thrust. Rarity's magic slid inside her pussy, conforming to her walls and probing at just the right depth to hit her favourite spots. Her breathing grew ragged, her hooftips tingled, and her eyes were locked on the image of a hot and bothered dragon in front of her.

Berry pulled back suddenly, accidentally breaking their rhythm and leaving only his tip inside. The sudden withdrawal produced some very wet sounds, and Rarity felt herself flush in embarrassment. “P-pardon,” she muttered. Then she immediately marveled at her own warped sensibilities. For fuck's sake; here she was, getting fucked in the ass by a bizarro world version of her friend in front of all her other friends, and she was embarrassed because her tailhole made a bit of noise due to a sudden absence of dick?

Twilight shook her head in amazement, coming to a similar conclusion. “Don't worry about it,” she said through a very dry mouth. She couldn't tell whether it was just in her head or if she'd actually drooled enough that her salivary glands were having trouble keeping up. Was that a dragon thing? A horny dragon thing? She wanted to look down to make sure she wasn't covered in her own spit, but that would mean looking away from Rarity. From the flawless unicorn with her tail up in the air, her eyes wide, her cheeks flushed, and of course most of her body concealed by another pony.

A day ago, she couldn't have even imagined Rarity in flagrenté, let alone taking it up the butt and loving it. She thought back to all of the slumber parties they'd shared over the years: the tame questions, the silly dares, the comfortable silences, and of course the entirely platonic snuggles none of them had ever considered sullying. On another night, maybe Twilight would have been sad that those parties were behind them, but in the moment she was absolutely certain that they had lost nothing and gained quite a bit.

Rarity gasped and spasmed as Berry glanced against that spot inside her again. A second later, her own magic swept up against her clit and sent a second wave of pleasure arcing up her spine. “F-fucking, ah d-darling,” she stammered as her orgasm wracked her, leaving her hindlegs loose and jelly-like and contorting her face into a mask of senseless pleasure. Her muscles relaxed to the point that Berry's presence was all that kept her upright.

The sound of Rarity's voice was nearly enough to push Twilight into an early climax as well. She yanked her hand away from her crotch out of a sudden, inexplicable fear that somepony would catch her. As if anypony would care, even if they weren't equally enraptured in the show.

Berry sped up. He leaned down to Rarity's ear and whispered, “Should I pull out?”

Rarity's mind was still awash with delightful chemicals, but she managed to swim to the surface for long enough to remember that as sexy as the thought of Berry painting her insides white was, the cleanup would be much less so. “Please,” she said, her voice only shaking a bit.

With a series of quick, measured thrusts, Berry reached his peak. He pulled back after a final thrust and his flared head came free with an audible pop. He angled his hips and came, releasing a thick pulse of cum across Rarity's rump, some rolling close to her slightly gaped tailhole before trickling down and saturating the coat over her ass and legs. His heavy balls tensed, and another spurt splashed across the outside of Rarity's vulva, droplets sliding inside the entrance that was still held open by her magic.

Berry's forelegs loosed their grip around her barrel and he slumped backward, angling his cock upright right on time to deliver a third and final burst of semen directly at the underside of Rarity's belly. She couldn't help but coo at the warm, sticky sensation.

Fully spent—for the time being at least—Berry stumbled back to allow Rarity some space.

After a moment to catch her breath, Rarity slid her hooves off the table's edge and dropped to all fours. She tested her balance, then turned around in a slow circle to give the entire room a good luck at her. Her white cheeks were matted and shiny with semen, and both of her comparatively pristine holes were slightly parted, one from excitement and the other from simple stretching.

Applejack choked, Fluttershy muttered something unintelligible. Rainbow Dash whistled.

Twilight was absolutely motionless, but her muscles were visibly tensed as if she was seconds away from leaping out of her seat and diving across the table.

Surely, thought the dragon, surely Rarity would appreciate a good tongue bath right now? It wasn't even necessarily a sex thing at this point, just the polite, neighbourly thing to do when a friend was that covered in jizz. Twilight's reasoning was as sound as ever. Her chair creaked as she prepared to stand up.

Rarity's horn glowed, and the mess vanished in a flash of blue, leaving only her slightly puffy marehood and loosened tailhole as evidence of the last turn. She flashed Twilight a devilish smile, then returned to her seat. She winced slightly at the immediate ache in her bottom. Another count against anal, she thought, although she knew that it wouldn't be long before she indulged in it again.

Possibly even later that night, if she was lucky.

“Was that okay, Rarity?” Berry asked, eyes bright and genuine.

Rarity laughed. “Oh, the best I've had in quite a while. I'm loath to admit it, but you were quite a bit nicer than my usual toys. I dare say you even fit a bit better as well. Perhaps I should get one of those custom dildos shaped in your likeness, Berry darling.”

The stallion's eyes lit up. “Ooooh, that sounds fun! I want one too. Think of the possibilities.”

Rarity had been joking, but seeing Berry's enthusiasm, she shrugged. “We shall have to make a date of it.” She felt another gaze from the corner of her eye, and she turned to Twilight. “You must come along, of course. The royal discount at those places is always breathtaking.”

Twilight nodded dumbly.

Rainbow leaned over and nudged her. “Hey, lovepuppy, it's your turn.”

“Oh.” Twilight looked down at the table, where a blue aura had already deposited the deck, a die, and the spinner. “Yes, right. My turn.”

She put a hand on the bottle and glared at it. “Work with me here,” she murmured, and then gave it a spin.