Metamorphilia

Party games were usually only there to grease the wheels of conversation, to keep ponies engaged and present. Now, as Twilight wordlessly floated a die and the spinner bottle over to Berry, the game was everything.

Berry set the bottle down and spun. His eyes whirled in their sockets, following its tip until it finally slowed to a stop. He looked up at Applejack. “Ready to give stallion-me a go?” Berry asked gently.

Applejack swallowed. “Yeah, I reckon. You gals are—er, I mean, you too Berry, but you're all you, and… fuck me this night's gotten mighty strange.” Nevertheless, she gestured for somepony to pass her a die. Rarity complied, sliding the cube she'd used in the previous round across the table.

Both earth ponies rolled together. Applejack's landed on three shaking feathers. Hypersensitivity. Instantly she felt her coat stand on end, her shoulders tense, her heartbeat quicken. She was grateful that she hadn't rolled that side before getting used to her new body, or the sensations might have driven her straight into a panic. She was having a hard time sitting still as it was.

Berry's die landed on an X. One second he sat there in all his large, slightly chubby glory, and then next he was replaced with a form they were all much more familiar with. A plump, average sized pony with a round muzzle and a curvy body. “Aw… I guess I'm Pinkie again,” she said, sounding a bit dejected.

Rainbow cleared her throat. “We can keep calling you Berry if you want,” she offered.

“Nah, it's fine. I like being a mare too, and it's less confusing this way,” Pinkie Pie countered. “I'll just need to hunt Discord down later and get some more of that stallion juice out of him.”

Fluttershy bit her lip. “Um, maybe let me do the talking. If you ask him like that… you might get something else instead.”

Everypony else at the table nodded in fervent agreement.

Pinkie Pie looked up at Applejack. “At least this works out great this round! Cute marecock for you, pink party pussy for me; it's the perfect pairing.”

Applejack nodded slowly, then faster when Pinkie casually rolled onto her back and spread her hindlegs, displaying said pussy for the whole room to see. It was just as inviting as it had been at the start of the game, although now nopony was even pretending to not look.

She cleared her throat. “Uh, the card, sugarcube.”

“Oh!” Pinkie lurched forward and groped around for the deck. After a few seconds she snagged the top card and squinted at it. “Oooh! This is a fun one!”

“Yeah?” Applejack said with some trepidation.

“Yeah! Cum inside me!” Pinkie opened her legs again, then reached down with her forehooves to spread her lips slightly, baring the bright pink flesh between her darker pink folds. “I love getting all messy and sticky down there, and you haven't gotten to put that thing inside anypony yet! It's the bee's knees!”

Applejack's cock stiffened at the idea. It would be like eating out a mare, but it would get herself off at the same time, and then fulfilling the challenge… shooting her load deep inside Pinkie's inviting cunt…

Rarity sniffed. “I do remember having Applejack's 'thing' fairly deep down my throat, Pinkie.”

“Oh yeah. Still, I'm pretty sure vaginal is way different! I hope I get to try out a few more holes tonight.” She cast a meaningful look around the room, her gaze lingering for a moment on Fluttershy, who shivered.

Applejack was already on her hooves and rounding the table, moving with purpose and only a bit of jerkiness due to the sensitivity spell.

Pinkie Pie received her eagerly, scooching back on her seat and lifting her hips, thighs still as far apart as they could go, which for Pinkie Pie was pretty damn far. Her tummy rose and fell in short, quick, excited breaths, and her slit clenched and flexed slightly along with it. Not winking, but close.

Applejack sank to her haunches in front of Pinkie's crotch and breathed in. She made a noise deep in her throat, like a content cat, and then leaned forward and slid her chin over Pinkie's small teats, trailing her mouth down towards her opening.

Pinkie giggled, “You don't need to warm me up, AJ!”

The farm pony huffed, accidentally blowing a hot breath right against Pinkie's vulva. “If you think getting eaten out is just a warm up, you need to get yourself a proper mare in the sack sometime.”

“You're invited whenever!” Pinkie said. Then she reconsidered. “Well, not anytime. I'm pretty sure I'd get in bad trouble if you started licking me in the bakery, or around foals. Or around most ponies, apparently—found that one out the hard way. Did you know that Minuette has a whole collection of vibrating toothbrushes that she uses for—”

Applejack didn't let her finish explaining what Minuette used those toothbrushes for, although she could probably guess. She gave Pinkie's entrance a cursory taste and gave her clit a kiss goodbye, making Pinkie moan softly. Then Applejack rose to her hooves, reared up and braced her forelegs on the chair to either side of Pinkie, and carefully lined herself up with her friend's pussy.

She felt slick, hot flesh against her rod and thrust forward, but ended up only grinding down Pinkie's slit and brushing her teats with the tip of her cock.

Pinkie giggled again. “Here, let me help. First timers usually need somepony else to line them up, and I've gotten pretty good at it!” She reached down between her hindlegs and grasped Applejack's shaft with both hooves. She gave it a few quick pumps, then pressed it down against her opening until the head was just barely spreading her walls. Then she reached up and gave Applejack's flank a slap. “Giddy up!”

Applejack was so surprised that she complied, driving her hips down and sliding the tip of her cock cleanly inside Pinkie's eager pussy with a satisfying wet noise. Pinkie hummed happily and rolled her hips up to meet Applejack's, her walls rippling and clenching as she took inch after inch of her cock.

“That was mighty rude,” Applejack said, but her face was overcome with pleasure and her voice was forceless. She let out a short, tight breath, and then looked down at Pinkie. “Can I… can I keep going?”

Pinkie smiled and rolled her hips again. “The stallions at parties don't hesitate, so I'm used to starting fast. Come on and fuck me!”

With a quick snort of air, Applejack did as she was told. Her forelegs found their balance again, she straightened her spine, and thrust forward, burying herself inside Pinkie up to her medial ring, and then pulling back until only the wide tip of her shaft remained inside. She thrust back in one powerful motion, filling the other mare until it almost felt like there was no place further for her to reach, then back again.

Pinkie moaned and pushed back against her, experienced hips knowing exactly how to cajole a tentative partner onward. Her pussy clenched hard around Applejack, at points becoming so tight that she almost couldn't slide back out. Almost. Between the brand new sensations driving Applejack's orgasm on faster and faster and Pinkie Pie's enthusiastically wet slit, there was lubrication to spare.

“Mmph, damn, sugarcube,” Applejack said between clenched teeth as Pinkie bucked against her again, her inner walls pressing down on her flare. “You must be a real—ah, fuck! A real hit at those sex parties.”

Pinkie laughed, only a bit breathless. She ran a hoof down Applejack's side, feeling the soft flesh where the farm mare's thick muscles used to be, trailing down to her flank. “I usually don't have to wait my turn at the hitching posts,” she admitted. “Once I lift my tail, I'm the main attraction.”

Applejack moaned and gave a sudden, hard thrust. The image of Pinkie tied up to a post, being attended to—used—by a whole train of ponies somehow made her even stiffer. As much as Applejack probably wouldn't appreciate the kind of crowd those parties drew, she couldn't deny that a part of her wanted to be there the next time Pinkie hitched herself up.

Her pulse was starting to rise, and she could feel her orgasm coming, like a cart racing down a hill toward a cliff. She tried to speed up her thrusts, each motion bringing her hips against Pinkie's flank with a soft plap, but the position was too awkward for her to get much leverage. She snorted in frustration. The chair creaked.

Pinkie moaned and tensed, her first climax washing over her from her hooves to her nose. Her tail whipped up and found its way to Applejack's outer thigh.

In a sudden surge of desperate lust, Applejack let her next thrust carry her entire body forward, sending the chair tilting off balance and both of them pitching backwards with it. They toppled together, still joined at the hips, into a pile on the floor. Applejack had fallen so deeply into her rhythm that she barely stopped thrusting throughout, her hindlegs scraping for purchase on the crystal floor.

Pinkie laughed again, although this time it was half moan, and she reached out to place a hoof on Applejack's chest, signaling for her to stop.

Applejack almost ignored her, but after a split second she forced herself to relax and step back. Her soaked cock popped free of Pinkie's pussy with a bit of difficulty considering how tight the mare still was and how wide Applejack's flare had gotten. Pinkie gasped at the withdrawal, her slit instinctually clenching down several times on nothing.

Pinkie Pie paused for a few moments to catch her breath, then hurried onto her hooves, stepped toward the table, and braced her forelegs on its edge. Her tail flagged aside, displaying her puffy, leaking sex and tight tailhole proudly. She reached back with a hoof and spread herself further open, grinning all the while.

Applejack darted forward, her own forelegs finding purchase around Pinkie's barrel while her hindquarters slid into position. This time she found Pinkie's needy hole right away and buried herself back inside in one motion, their hips meeting urgently. Applejack found her rhythm again, sliding in and pulling out right on time with Pinkie's inner convulsions.

Pinkie's front half slumped down onto the table as Applejack fucked her from behind, her forelegs slack but her face bright and excited and her eyes scanning the room. She met Twilight's gaze and noted that a bit of the dragon's tongue hung from one side of her slightly parted mouth.

Fluttershy watched, her face nearly as pink as Pinkie's, her forehooves out of sight beneath the table and her wings twitching at her sides. Pinkie gave her a quick wink, then moaned aloud as Applejack hit a particularly delicious spot deep inside her. Fluttershy bit her lip, and her hooves moved even faster.

Rarity seemed the least engrossed, although she was hardly ignoring them. Her attention drifted between the two coupled ponies, appreciating and assessing the carnal activities like a fine wine. Then her horn glowed, and she shifted in her seat, and it was clear that she was no less inspired by the rutting Applejack was dispensing than everypony else.

Rainbow Dash seemed barely able to resist joining in, much like she had done during Applejack's last turn. Her hindlegs were spread wide open, her hoof roughly working over her clit and labia as if she was trying to compete with them. But she never so much as looked at Pinkie Pie, and when Pinkie managed a glance behind her, Applejack was similarly focused.

The farm pony struggled to keep her mouth shut as Rainbow put herself on display and stared her down all the while. Applejack's hips never ceased pistoning back and forth—that was a hard thing to forget—but Pinkie Pie wasn't the mare at the center of her mind anymore. Rainbow reached down and pressed a hoof just beside her tailhole, spreading it open just a tad, before returning to her pussy. Applejack groaned at the sight, and Rainbow laughed.

A full-body quiver wracked Pinkie Pie. Her hindlegs shook, barely sustaining her weight, and her pussy clenched and squeezed Applejack's shaft in a frantic, instinctive pattern. She moaned aloud as her orgasm ran its course, broken by gasps and senseless vocalizations. Juices dribbled from her slit, soaking into the coat around their groins and dripping onto the floor in thick droplets.

“You seem surprisingly gifted in this department, Applejack,” Rarity said with a hint of snark. “I've laid with stallions with years of penetrative experience who couldn't get me off as many times as Pinkie Pie has.”

Applejack grunted, her own peak not far away. She didn't turn away from Rainbow, but looked at Rarity from the corner of her eye. “From all I've heard, stallions are better at treating stallions and mares are better at treating mares.” She gave a rough thrust, driving Pinkie further onto the table and forcing a fresh moan from her mouth. “And I got plenty of practice with strap-ons, only difference is this thing's all warm and twitchy, and those ain't downsides.” Applejack felt the now familiar pressure behind her cock and tightening of her sack. She winced and tried to force it down. “Oh yeah, and straps don't get me off at the same time. Not sure if that's—mmph—good or bad.”

Rainbow bit her lip and worked at her clit as it winked out. “Sounds like a plus to me.”

Pinkie Pie was starting to recover from her orgasm. Her hindlegs straightened, and her inner walls rippled around Applejack. “Come on, AJ! Fill me up!” she said eagerly, thrusting her ass back to meet Applejack's thrusts. “I want to feel your cum trickling out of me for the rest of the night!”

Applejack felt something inside her tense at those words. Logically, Pinkie Pie had too much sex for her to not use a regular contraceptive potion, and they were well outside of heat season, plus she had no reason to assume that her magical nards could produce virile seed in the first place. But the idea of finishing deep inside the mare, leaving her cum behind to soak into Pinkie's womb… something about it drove her on even faster. She felt the tension again, something between her legs clench and pulse, heralding a short spurt of precum that soaked Pinkie's wet marehood even further.

“After this—oh!—we should get these dice and spend a whole day—ah, AJ!—just milking you dry.” Then, in a characteristically surprising turn, Pinkie added, “Unless you'd like to do that with somepony else instead…” And she looked directly at Rainbow Dash.

Across the table, the pegasus blinked. She even stopped playing with herself for a second as Pinkie's words sank in. “Oh fuck,” Rainbow hissed.

And Applejack's floodgates burst open. She slammed her hips home, producing a loud slap that seemed to echo off the walls, and held herself in deep, her balls clenching as shot after shot of thick semen flooded Pinkie's hole. After a second she started thrusting again, this time slower and without withdrawing as far, and fucked another few waves of cum into the farthest reaches of Pinkie's pussy. It quickly started to leak out from between the tight seal of Pinkie's lips and pour onto the floor, streams of it soaking into Pinkie Pie's hindlegs.

Finally, she pulled back, her flared head escaping Pinkie's slit with a wet pop. A veritable deluge of white followed it, audibly splashing onto the crystal floor.

Pinkie Pie twisted her head around and looked at the mess. “Hey, Twi? Are these cushions cum-proof?”

The dragon cleared her throat, eyes wide and one of her hands out of sight beneath the table, apparently hard at work with something. “Um, no, but don't worry, I already ruined mine. I'll figure out a spell or something.”

Pinkie muttered an acknowledgement, then stumbled back to her seat and sat down as cum continued to flow out of her well-fucked pussy. “Thanks, AJ. That was exactly what I needed,” she said, sounding almost tipsy in the afterglow.

Applejack felt pretty rosy herself as she returned to her own seat, her slowly softening cock coated in white. “You're welcome.” She chanced a sideways look at Rainbow, who smiled. Applejack let her head fall against her chair's backrest. “Good challenge, Discord.”

Apparently they had crossed another new line, because the room was still and silent, nopony quite daring to be the first to speak. After almost a minute of quiet tension, Applejack said, "Ain't it your turn now, Rare?

The unicorn let out a murmur of surprise, then licked her lips and nodded. “I suppose it is, yes. I'll just… retrieve the equipment myself, since neither of you look fit to walk just yet.”