Futa Twilight x Trixie Cum Inflation, for the fatpone and inflation threads on /mlp/

Based on a comic by Phurie: http://imgur.com/a/xgJ05

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In the town square of Ponyville, just as every Friday night, Trixie’s stage was set up in the middle of the square, with all of its lights and flashy designs, though instead of the magical mare stepping out from behind the curtain, Twilight instead walked out onto the stage, dressed in a dapper red suit with white cuffs on her front hooves, and a cute little bowtie at the collar.

“Fillies and gentlecolts!” her voice boomed over the loudspeakers that adorned the stage, a microphone floating in front of her snout. “Welcome to yet another wonderful presentation from Princess Twilight Sparkle and her assistant, the Great and Submissive Trixie!” she grinned eagerly, extending a hoof towards her left as the crowd, mostly stallions, rowdily cheered, watching the other mentioned mare stepping out from behind the curtain, wearing a dark blue corset and matching stockings on all four legs.

“Tonight, we shall see if Trixie can surpass her previous record for how much of my seed her body can contain.” Twilight continued with a now quite lustful grin towards the unicorn, her wings lightly fluttering as they spread, while Trixie blushed and smiled in return. “Let’s not waste any more time then, my lovely assistant. Give your adoring fans what they came here for.” she added, before rearing back and standing up on her back legs.

“Of course, Twilight.” Trixie glanced down between the alicorn’s legs, her blush deepening as she gazed upon the marvelously huge orbs that hung between them, with the rather fat sheath above them. As the crowd eagerly clopped their hooves and cheered, she approached Twilight and leaned right in, starting to nuzzle and slurp over the fat orbs, eliciting a pleased sigh from the pony they were attached to.

“Mm, yes...I have a feeling that you’ll certainly be able to at least reach your previous record, my dear Trixie.” she teased, placing one of her front hooves on Trixie’s head and gently brushing over her mane as she enjoyed the teasing slurps and nuzzles her plump balls were receiving, easily coaxing her equally oversized member from its sheath. Just as the head poked out, Trixie began to drag her tongue upwards, slurping over the first few inches of her member a few times before opening her mouth wide and engulfing the tip, eagerly suckling on it.

With her mouth now working the princess’ cock, her horn glowed softly, using her magic to stroke and rub over the huge orbs below, eliciting further moans from Twilight. Keeping her lips pursed around the head of that thick length, she sighed happily, feeling it growing harder and harder every second, beginning to throb in her mouth and ooze a small amount of precum, which was of course quickly lapped up by her stroking tongue.

With all of the teasing she was receiving, it didn’t take long for Twilight to become fully hard, her cock easily long enough to be a fifth leg, although it was a bit thicker than even her back legs. As Trixie felt the futa cock become fully hard, she slowed her movements a bit, gently slurping over the tip now while her gaze shifted up to Twilight's face, seeing the princess smirking down at her.

"Good girl...now let us begin." Twilight teased, moving both hooves to the sides of Trixie's head and immediately thrusting her hips forward, shoving her huge length down the other mare's throat in one swift movement. The crowd cheered once more as they watched the princess' cock disappear into Trixie's mouth, bulging her out neck quite a bit with its girth; all of the stallions sporting erections of their own, some discretely rubbing themselves as they watched.

"Oooh, yes...mmnh...such a wonderful throat...I could just facefuck you for hours..." Twilight moaned, her wings spreading stiff now and lightly flapping as she savored the feeling of the hot, snug throat squeezing around her length, holding it deep within the unicorn's throat for a few moments longer before pulling back and beginning to steadily buck her hips back and forth, her crotch lightly bumping against Trixie’s snout each time she thrust forward.

“Mmmff...mm…” Trixie groaned between each thrust, her horn still glowing with magic, though instead of stroking the alicorn’s orbs, her magic was now focusing on letting her breathe while the huge stallionhood stuffed her mouth and throat full. Closing her eyes and blushing deeper still, she relaxed her body a bit, letting it lightly sway back and forth with each firm thrust; the feeling of being used like a toy just arousing her to no end, already causing a bit of a moist spot around the crotch of her uniform.

With her constant thrusting, the alicorn panted lustfully, already feeling loads of her precum gushing forth, spreading warmth down Trixie’s throat and into her stomach; her own magic starting to rub and stroke over her plump orbs as they repeatedly slapped against Trixie’s chin. “What do you say, audience...mmnh...shall I pound her tight throat even harder?” Twilight spoke as she pulled the microphone back over, shooting a lustful smirk towards the audience and being met with rowdy cheering once more. “Alright then...ahh...hope you don’t choke too much!” she teased, immediately picking up the pace and leaning forward, putting more power behind each of her firm thrusts.

“Mmmngh…!” Trixie’s groans became a little louder as her eyes opened again, watering slightly from the force of each thrust against her snout; her front hooves moving up and grasping Twilight’s waist, holding onto it as it repeatedly bucked back and forth. Already, she could feel the princess’ length beginning to throb harder within her throat, while further loads of precum gushed forth, slowly filling her belly with warmth.

“Ahh, yeah...mmnh, gonna cum...already!” Twilight grunted, continuing her firm thrusts while her hooves held onto the sides of Trixie’s head a bit more firmly, her orgasm being brought on rather quickly from the snug squeeze Trixie’s throat was providing. “Here it comes…!” she bucked her hips for a few more moments before giving one final thrust, burying almost her entire cock in Trixie’s throat now, only a few inches of it still outside of her mouth. Trixie could feel the head of it pushing down into her stomach as it began to erupt, pumping out huge loads of seed with each throb.

Within seconds, her belly began to distend outward and stretch her corset, the crowd cheering once more as the thin piece of clothing quickly tore and split in half, making way for Trixie’s swelling gut. The unicorn’s eyes tightly closed again as she lightly pressed herself forward a bit, stroking her tongue along the base of Twilight’s shaft, feeling the whole length throbbing and pulsing in her throat as it continued to bloat her further and further.

“Don’t spill a drop now...mmnh, you want to beat your old record, don’t you?” Twilight teased, smirking down at the other mare while her cock continued to pump load after load into her belly, now stretched far past that of even a pregnant mare’s size, and still quickly swelling. The light teasing of Trixie’s tongue only added to her pleasure; a pleased sigh escaping her lips as she leaned back again, standing up straight with one hoof on the unicorn’s head.

Trixie’s cheeks blushed quite deeply again as she felt her midsection growing heavier as well, her legs wobbling slightly as they struggled to support all of the extra size and weight, though just as her legs began to give out, her belly began to press against the floor, starting to support her body with its swelling size. “Mmmmfff…” Trixie groaned around the royal member, finally opening her eyes again as she felt the flow starting to die down, leaning her body weight on top of her ballooned-out belly.

“Ahhh...that’s a good assistant…” Twilight giggled softly as her orgasm slowed to a stop, stroking her hoof through Trixie’s mane a couple times while the crowd once more clopped their hooves and cheered some, seeing the unicorn’s greatly-swollen gut. “But that was just the first round...hehe...I’ve still got a lot more to give you!” she teased, pulling her hips back and sliding her length out of Trixie’s throat and mouth, still hard as ever and lightly twitching in time with her heartbeat.

“Mmnh...ah...y-yes, Twilight…” Trixie softly moaned, licking her lips gently and gulping between her soft panting. As she glanced forward though, her eyes widened to a rather surprising sight. Twilight’s balls seemed to be even bigger than before, despite having just pumped many gallons of seed inside her. At that moment, she caught sight of the purple glow of magic surrounding the orbs, plumping them up a little bit bigger before her eyes.

“Well, your fans are eagerly awaiting us to continue, so...let us proceed then, my lovely assistant.” Twilight teased, licking her lips as she gently patted Trixie’s head, before getting back down onto all fours; Trixie noticing that her extra-swollen balls nearly touched the floor at this point from how much Twilight’s magic was growing them. The lusty alicorn slowly made her way around Trixie’s bloated form before rearing back again, this time leaning her front hooves up onto Trixie’s lower back, while her thick length pressed and rubbed along the mare’s rump, smearing a fresh glob of precum between those soft cheeks.

“Twilight...nhh...wait...Trixie doesn’t think she can take this much…” Trixie softly moaned, looking back at Twilight, who was still smirking quite lustfully.

“Nonsense, my dear...I wouldn’t be doing this if I didn’t think you could take it.” Twilight teased in return, pressing her hips forward a bit and prodding the tip of her royal cock between the soft buttcheeks and against Trixie’s snug rear entrance. “Besides...I’m enjoying this far too much to stop now.”

With that, she suddenly thrust her hips forward, forcing at least half of her length into Trixie’s rear with one swift thrust, causing the unicorn to gasp and cry out from the mix of pain and pleasure coursing through her butt. “Mmmnh, tight as ever!” Twilight groaned, her front hooves sliding up and grasping at Trixie’s shoulders as she eagerly pushed her hips further forward, already starting to buck a little bit to help sink her length even deeper into the snug rear.

“T-Twilight...ngh!” Trixie moaned, her cheeks blushing deeply once more as she was roughly pounded, though the constant gushes of warm precum helped the pain quickly fade into pleasure; Twilight’s thrusts only accelerating with her shaft becoming slickened once more. “N-not so rough...ah...th-that hurt!”

“Don’t lie to me...nhh...Trixie!” Twilight teased, panting softly herself now as she kept up her firm thrusting, eager to reach her next orgasm and fill her assistant even further. “I know you love being dominated so roughly!” she grunted as she leaned forward and slurped the unicorn’s horn once, making her gasp and shudder from the teasing tingle of pleasure. All the while, her own horn continued to glow and focus its magic on her oversized balls, still growing and swelling them with further loads of seed; nearly twice their previous size, resting on the floor now from how massive they had grown.

With each rough pound she received, Trixie felt her giant belly slosh and wobble beneath her; the warmth only seeming to amplify her pleasure even further. With a soft gasp, she felt Twilight starting to nuzzle and slurp at the back of her neck, giving her soft love bites while her hooves lightly rubbed and stroked around her shoulders. By now, quite a few of the audience had released their excitement, splotches of white dotting the ground in front of the stage while the security team worked a bit harder to hold back the even more eager stallions attempting to climb up onstage.

Twilight had only been pounding Trixie’s rear for about a minute or so before she felt her second orgasm rapidly approaching, easily built up by all of the self-magic-teasing she was doing, feeling her balls becoming incredibly heavy now with the weight of so much seed within them. “Mmngh...get ready, my lovely assistant...ahh...I’m about to cum…!” she panted and groaned, smirking lustfully while her hooves gripped at Trixie’s shoulders a little more firmly, supporting herself for even harder thrusts, really starting to smack her hips against the other mare’s soft rump. All the while, precum was practically pouring non-stop into Trixie’s clenching rear, already having swollen her ever belly noticeably larger.

Amidst her pleased groans and moans, Trixie’s horn began to glow as well, stroking her magic over Twilight’s now monstrous orbs, feeling just how big and full they had become; their size much bigger than she had ever seen Twilight swell them before, causing her eyes to widen with a bit of fear now. “Twilight, wait...ah!” Trixie gasped, but it was too late. One final thrust from Twilight buried that entire length inside her before it began to throb wildly, erupting even stronger than the previous time and gushing seed like a fire hose deep within the bloated unicorn’s gut.

Immediately she began to bloat even larger, her belly pushing herself and Twilight up further and further as it grew, sloshing some more as further loads of fresh new warmth entered her belly. “Th-this is too much...Twilight!” she groaned, though Twilight only smirked and leaned her upper body up a bit, resuming her thrusting as her cock continued to powerfully erupt.

“But your fans are loving it, Trixie...mmnh...you don’t want to disappoint them, do you?” Twilight teased, watching as the mare below her continued to inflate further, her belly easily three times the size of her body by now, and still growing quite rapidly from the sheer amount of seed pumping inside her.

“Ahhhh….” Trixie groaned, her eyes rolling back now as her tongue lolled out of her mouth, the extreme bloating of her belly causing her pleasure to spike up quite a bit, easily pushing her to her own orgasm; her marehood winking repeatedly as a small gush of her carnal juices splashed out and down onto her gut. At the same time, her snug rear clenched even harder around Twilight’s thrusting length, only helping to milk it even further.

“That’s it, my dear...nnh...we’re almost to your previous biggest size!” Twilight grunted, shuddering softly as she felt the tight squeeze around her royal cock, having to put even more effort into her thrusting, though she certainly enjoyed the increased pleasure. As she kept pumping out load after load, her balls steadily shrunk back down, lessening the weight on her lower body as well.

As her gut ballooned out to massive sizes, Trixie found herself gulping, fighting to hold back the huge amount of seed in her stomach which was now trying to force its way out from the ever-increasing pressure. “Twi...ngh!” she managed to groan before closing her mouth tightly in an effort to stop the inevitable flow of seed.

“Oooh...congratulations, Trixie...mmnh...you’ve surpassed your old record!” Twilight teased with a smirk, her bucking hips slowing down now as her orgasm began to die down; her balls having shrunk back down to just a bit bigger than their normal size, reliving quite a bit of weight on the alicorn’s lower body. The crowd was once more clopping their hooves and cheering rowdily, all eyes upon the massively blimped Trixie, whose blushing cheeks were bulged out with seed, a few small streams of it dribbling from her tightly-pursed lips.

As Twilight finally pulled her hips back and slid her length out, a good bit of her cum gushed from the unicorn’s abused rear, flowing down the side of her massive gut, leaving a few streaks of white before the flow finally slowed to a stop; that small amount of leakage allowing Trixie to finally gulp and clear her mouth and throat of the thick liquid. All in all, her belly had grown absolutely massive, her body now at least six or seven feet off the ground from her belly’s giant size.

In front of her, Twilight stood on her back legs again, waving to the crowd with an eager grin. “That’s all for tonight, folks! Come back again next week for our next performance, where we shall see if Trixie can take even more!” she announced into the microphone, being met with even more wild cheers from the crowd.

“M-more?!” Trixie groaned, looking down at the alicorn with widened eyes, while her monstrous belly churned and gurgled beneath her. “Ohh...sometimes Trixie regrets becoming a magician…”