Metamorphilia

Rainbow snorted and threw the die over. Fluttershy caught it in her wing, let it tumble among her feathers for a moment. With her other wing she gave the spinner a nudge. It swung to a slow, tentative stop after just one rotation, the trembling tip pointed straight at Rarity.

The unicorn set down her cider bottle and floated the other die into the air. “Whenever you're ready, darling.”

Fluttershy flourished her wing and dropped her die onto the table.

When it stopped, it displayed a series of symbols along the outside. A fang, a feather, a pony tail, and half a dozen more. In the middle, an arrow stretched into a circle and flanked the symbols. Fluttershy narrowed her eyes, then her eyes widened on their own. She let out a little involuntary gasp.

The ponies around watched, terrified, as Fluttershy's form started to twist and change.

She jerked up from her seat and took a few steps on legs that were growing longer and thinner, the ground receding away inch by inch. Her long, graceful pink tail became shorter and thicker, the individual strands of hair grouping together as they melted in toward her rump. Her neck and face stretched out, her barrel constricted, and her wings vanished into the fur on her sides. Finally, her mane fell across her snout in a familiar, if considerably shorter, style of pink hair.

Fluttershy opened her eyes and let out a sigh. “Discord,” she said, a hint of a smile on her face. That little scamp. This was supposed to be their game, just for the two of them, wasn't it? She turned her head from side to side and rolled her shoulders to stretch out her new joints and muscles.

Twilight was at her side, her hooves mussing the carpet nervously. Her eyes darted back and forth over her transformed friend. “Fluttershy! Are you okay? Don't worry, we can fix it. I have lots of books on transfiguration curses and—”

Fluttershy flicked her tiny stub of a tail and suppressed a giggle. “Oh, I always forget how ticklish deer tails are.” She laughed again and sat back down carefully, arranging her longer, ganglier legs beneath her. “I'm okay, Twilight. I was a little surprised at first, but Discord and I play animal charades all the time.”

“Charades,” Rarity said flatly, levitating her own die several feet away from her as if it would bite. “How in Equestria could this be considered charades? You're a deer, darling. A rather sweet and pretty deer, but a deer nonetheless!”

“Thanks, Rarity!" She glanced down at herself and twisted in place to peer at her tail. ”Are my colours the same? Sometimes Discord changes those too."

“You're yellow and pink,” Rainbow said. “You and Discord transform into animals? Why?”

“For fun. We like to play little guessing games sometimes, and once I tried to teach him charades, but he kept just transforming into the animal instead of acting it out! Then one time he transformed me when it was my turn, and now that's part of the rules! One of us acts out the animal, and then the other one guesses, and then the one doing the charades gets transformed into the guesses!” She laughed. “Discord's not very good at it though. I usually end up being so many different animals before he guesses right.”

“And it doesn't hurt none?” Applejack asked. “Or feel, you know, strange at all?”

“It's a little strange at first, but you get used to it. And it's fun to be another kind of creature for a bit. I was an alpaca once. I think that was my favourite. It was so warm and fluffy.”

The tension at the table slowly drained at Fluttershy's explanation and her calm demeanor. Twilight peered across the table at the transformed deer with interest, mentally noting the extent of the change, and Rainbow Dash was eyeing the die Rarity held in her magic. Sure, the first round hadn't gone great for her, but how cool would it be to transform into a griffon, or a dragon?

Before long, all eyes were on the unicorn in question, and she sighed.

“You don't have to,” Twilight said.

Rarity fanned herself with a hoof. “No, no, I shan't pull the reins while the night is so young, and I rather think that I can handle a bit of magical oddity after all this time.” With a flourish of her horn, she dropped the die onto the table.

It bounced once, twice, and skittered to a standstill. A curved, looping symbol stretched across the upright face, forming arrows and crosses and blending from blue to pink to green and every other colour on the spectrum.

Rarity looked at it for a moment, puzzled, and then let out a little gasp. “Oh my, I do feel… something. Is this how it was for you, Fluttershy?” Her voice changed as she spoke, deepening ever so slightly, acquiring an edge of roughness. Rarity's normal voice sounded perfectly at home at a trendy restaurant, or ringing out at an art gallery. By the end of her question, her voice sounded more appropriate for a dim, smokey bar. A bar where an ounce of scotch would cost more than most ponies made in a week, where the servers were dressed sharper than Celestia's seneschal.

She shuddered as a ripple ran down her body, changing her form by inches. A bit of muscle here, a pinch of the hips there, a wave of the mane. After a moment it was done, leaving a slightly breathless Rarity sitting stiffly in her seat.

Rainbow squinted. “Did your mane just get a bit shorter? Or…?” She tilted her head, stretched out of her chair to look at Rarity from every angle. “Huh. Did anything even happen? You look the same to me.”

Rarity swallowed, then, on second thought, took a sip of cider. The bloom of warmth suited her nicely. “Something certainly happened, but the details of it are lost on me. I can hardly see myself well without a mirror, can I?” Then her gaze wandered from Rainbow Dash to Applejack. The farm mare's jaw hung open, and a blush was plainly visible on her face.

“Applejack? Is…” Rarity suddenly felt self-conscious, and she looked down at her chest, raised a hoof to her face. Everything seemed the same, except. Oh, was her jawline a bit sharper than before? Her muzzle a bit more pronounced? And, as she shifted nervously on her chair, her body felt different. Where there should be curves there were only slight valleys, and where there was usually a layer of soft flesh she felt only hard, sinewy muscle.

“You look like, um,” Applejack started. She side-eyed Rainbow Dash, bit her lip, then said, “You look like a pegasus mare. A flier.”

Rainbow Dash hopped into the air and flapped across the table to get a better look. “Oh yeah! You've got a weather pony build!”

With a flash, a mirror appeared behind them, and Rarity jumped up from her chair and strutted back and forth in front of it, inspecting her every feature. “I see. It's certainly not a look I've ever aimed for, but… hmm.” She let out little tuts and clicks as she turned and posed.

Applejack struggled to keep her expression casual. Rarity's accent had always entertained her, even back when she hadn't thought much of the mare in general. A hint of Canterlot lilt, but with a strange spin that was uniquely Rarity. Now, though, the velvet huskiness that dripped off every word she said was like sunlight on her skin, honey on her tongue.

Rarity's newly slim figure and toned legs weren't hurting her neither.

Finally, Rarity finished reviewing her new form. She turned to Twilight. “These changes are temporary, yes?”

“They are. I usually wouldn't be able to tell with chaos magic, but this is the most orderly chaos magic I've ever seen. Discord must have put a lot of care into this spellwork.” Twilight's eyes crossed slightly and little sparks of magic flickered randomly around her horn. “It seems like the effects are anchored to where the dice land, and when the dice land. If you walked to the end of the hallway outside, or waited… hmm, thirty minutes or so, the threads would be pulled taught by your distance from their origin and the transformation would fall apart and reverse.”

“In that case, my compliments to the chef, Fluttershy,” said Rarity. She admired her reflection again. “In fact, I may need Discord to pay me a visit at the Boutique one day. It would be a brilliant challenge to work with a model between various shapes like this.”

Fluttershy nodded. Her deer nose twitched. “So, um, should I turn over the card?”

“Oh, yes, the game! Goodness, I had completely forgotten. Yes, by all means, darling.”

Fluttershy turned over the top card and smiled. “Give your partner a full body massage.” She held up her forelegs and her much smaller than usual hooves. “I'll do my very best.”

Rarity laughed. “Not too much of a challenge for the two of us. I trust you completely, of course. I've seen you work your magic on some of your animal friends before, and I have no doubt you can do the same for a slightly coltish mare.” She giggled at her own words, then stood up and glanced about the room. “I suppose the floor will do…”

She started to move for the open floor space to one side of the table, but then the deck of cards shuddered, twitched, and hopped upright. One of the Discords on the top card winked, and then the deck waddled off the table and into thin air. The dice bounded after it, leaving a clear surface that was the perfect size for a pony to lay on, and for another creature to lean over.

“Ah, naturally, right in the center of everypony.” Rarity didn't hesitate for more than a moment though. She hopped up onto the table and neatly folded her legs beneath her, then stretched out. Her head ended up just beside Applejack's cider. The unicorn looked up and grinned. “Apologies, Applejack. I'll do my best to keep still.”

Applejack let out a tiny, almost inaudible whine.

Fluttershy mounted the table above the unicorn and carefully pressed her forehooves to Rarity's neck. She kneeded softly, and Rarity surprised herself with an involuntary coo. She was no stranger to massage, but it felt quite different with so little fat between her sinew and her masseus' hooves, like every bit of pressure was releasing a fresh wave of tension. She supposed her new body had never been treated to this before, and perhaps transformation magic left little knots that needed to be released.

Fluttershy continued down Rarity's body, reaching her shoulders. She pressed both hooves down just behind Rarity's left foreleg, and the unicorn let out a full throated moan. Her shortened tail flicked, and little tremors ran down her limbs. “Oh, simply heavenly, darling,” she breathed.

Applejack choked down another gulp of cider. It felt like this challenge was lasting hours, days. She tore her eyes away from the pleasure-filled unicorn in front of her only to see everypony else eating up the show just the same. Fluttershy was flushed from her nose to her ears, and her tiny deer tail twitched wildly behind her. Rarity alternated between writhing in delight and laying perfectly still.

Rarity cooed again, and Applejack squirmed. She'd never felt so hot and bothered at one of their slumber parties before, not even the night that she'd been dared to kiss Rainbow on the cheek. Sure, that had been a little stomach churning and had led to plenty of strange thoughts the day after, but she'd kept her composure.

She was not feeling at all composed anymore.

Twilight Sparkle was squirming for similar, if perhaps opposite, reasons. Rarity. Pristine, refined, polished Rarity, and here she was, squirming and gasping under another mare. Sure, the circumstances were cleaner than that description probably suggested, but there were enough similarities that images and fantasies were starting to wear at the platonic bulwark that Twilight always held in place around her heart. Friendship is magic, she thought to herself, even as her forehoof rapped nervously against the tabletop and her heart pounded.

“You picked a great game, Twi,” Pinkie said. Her voice was disturbingly serene, her posture relaxed and open.

On the table, Fluttershy was doing her best to stay focused. It took a lot of concentration to give a good massage under normal circumstances. It required balance and control to put pressure on the right areas without bearing down too hard or slipping off a muscle group and grinding a hoof against bone, which nopony enjoyed. She'd never had to work with deer hooves before, though, and their smaller size made even the tiny bit of force much more noticeable.

It also didn't help that Rarity was being less cooperative than normal. Her vocalizations, twitches, and shudders were adding up to a strange sensation in Fluttershy's stomach. She felt strangely powerful, and that alien feeling combined with the audience of interest eyes all around her made it very difficult to stay focused on finishing her challenge.

Her hooves roamed further down toward Rarity's lower back. She pressed gently at the muscles on either side of Rarity's spine, and the unicorn suddenly arched her back, bringing her rump up against Fluttershy's barrel. It was a good thing Rarity's rear was obscured by Fluttershy's form, or else half the room would have gotten an eye full.

“Oh my, t-terribly sorry, darling. You're delivering quite the stimulating massage,” Rarity said. She forced her hips back down to the table and grit her teeth. How was a simple massage turning her on this much? And how far was she going to let this go? If Fluttershy kept going for too much longer—

“No kidding,” Rainbow said dryly. “I hope you know that if you finish on the table there I'm never letting you forget it.”

Rarity whimpered. “H-hardly a concern, Rainbow Dash, although your vulgarity is appreciated as always.”

Fluttershy took that as her cue to start wrapping up. She gave Rarity's sides a quick rub, then moved down over the mare's flanks. Her pulse sped up as a subtle odor hit her nose. Oh dear. Rainbow was not far off the mark at all. As her hooves graced Rarity's toned, athletic rear, the unicorn's tail quivered, barely staying in place over her assets.

On the far side of the table, Applejack glanced between Fluttershy and Rarity, both of whom were pink-cheeked and wide-eyed, although Rarity much more so. Darn thing looked like a teenager on her first date, jaw tight, breath fluttering, avoiding eye contact with everypony around her. Then Fluttershy shifted her hooves and bore down. Rarity's mouth fell open, tongue lolling out slightly in a silent gasp of pleasure, and Applejack corrected herself. Not just embarrassed or anxious, but right on the precipice.

Then Fluttershy backed away from the table and sat back in her chair. “Done!” she said, her voice quivering halfway through the word. She folded herself neatly and looked straight ahead at the wall between Twilight and Rainbow Dash, trying to ignore the heat between her hindlegs. Discord, she thought. What have you gotten us into?

A few seconds passed before Rarity even registered that the sensations had stopped. It took another few before she trusted her body enough to stand up and slide off the table. She winced as her coat brushed over a wet spot. She'd dripped onto the table? She couldn't allow the others to know, least of all Fluttershy. She took a breath and swept her foreleg over the offending patch of table once or twice until she was confident not a trace of her arousal was left. Finally, she returned to her seat, only for the texture of the cushion against her to draw out a fresh moan. She managed to bite it down and clear her throat to cover it.

Twilight stared, wide-eyed, at Rarity, then at Fluttershy. She wanted to ask if they were okay, but she knew that question wasn't quite right.

“My turn!” Pinkie Pie said, as if nothing out of the ordinary had happened at all. She held out a hoof. “Dice please!”