Swap Meet

by dirty little secret

Rating: mature
Tags: Fetish, Shining Armor, Slice of Life, Sex, Twilight Sparkle, My Little Pony: Friendship is Magic, Princess Cadance, Rainbow Dash, Romance, Porn
Length: 9047

Twilight's Swap-Half-a-Body spell is put to some more interesting new uses.

Twilight's Swap-Half-a-Body spell is put to some more interesting new uses:
It can give two lesbian lovers something new to play with. It can let the two of them feel what the other feels like. It can even help a scorned Princess of Love release her frustrations on the lot of them! And, of course, everypony will have lots of fun along the way.

Updates will be daily.
Reading Wanna Trade? is not required.
Contains: Half & Half bodyswaps, threesomes, voyeurism, revenge sex.

Published 2015-08-17 20:20:03 UTC
Last updated 2015-08-20 17:25:08 UTC

Rainbow Dash

I always thought Pinkie was silly for inventing the word nervouscited, but I had to admit, I was feeling it. It was the butterflies in my chest, the weird tightness in my legs... and the tingly warmth under my tail.

I followed Twilight – mostly by wing because I was way too excited to stay on the ground – as she led the way to her castle where her brother would be waiting for us.

Of course, I often dipped low in order to get a good view of Twi's cute little ass waggling back and forth as she walked. It was hypnotizing, that flank. I loved the way her tail arched up high over it, and the little glistening of her slit didn't escape me either.

We'd done it before, of course, lots of times – though maybe not as many as I would have liked – and I knew Twilight was great in the sack, but today she had something special planned, and she hadn't told me what. I did know, though, that it must involve her hunk of a brother. Why else would she have just happened to have special plans for the two of us when he was in town? Was she planning a threesome? That would be so awesome!

“Finally, we're here.” Twilight sighed a little when we finally came up to the front door of her massive castle. Huh. Maybe she was nervouscited, too! “Come on up, Rainbow.” She opened the door.

“Oh no you don't!” I grabbed her tail. “No breaks from flying practice. We're taking the window.”

Twilight giggled. “Shining's going to be awfully surprised,” she admonished, but she closed the door and fluffed her wings.

So it was going to be a threesome! “Last one to the top has to eat the other's creampie,” I shouted, not waiting for Twi before shooting up toward the top windows of her castle.

“Rainbow, wait! You don't even know which window it is!”

Ha! As if I didn't know where her sex den was. I'd come through that window lots of times... and watched through that window more times than Twilight would ever guess – sometimes those clouds floating by have eyes.

I beat her there easily, of course. Well, maybe not that easily. Her flying was really improving. But I still did beat her.

We perched together on the windowsill, her panting heavily and I just catching my breath slightly. It would take more than that little sprint to get me winded! I guess it didn't help my breathing rate that we were so close now, Twi practically panting right into my ear, just like she did when we... I licked my lips at that memory, and Twilight must have seen it.

“Huh, ready to get—” she panted a little “—started so soon?”

I held a hoof to my chest. “I don't like waiting.”

Rather than waste time replying, thankfully, she lit up her horn and magicked the window latch open, letting both of us hop inside.

Ooh, my mare parts were twitching already! An opportunity to get Twi's sweet ass and get boned by her studmuffin brother at the same time? It was enough to turn a healthy girl like me to jelly.

The same huge bed I was used to was in the middle of the room, but I was more interested in who was on it. Shining Armor laid back, sprawled across it, showing off his big white muscles. And the position he was in put more than his muscles on display – big, juicy balls laid across one leg, and a few thick inches of his flaccid cock were dangling from his tight, bulging sheath.

I knew what I wanted to do! “Come on, Twilight! Get in here and lick his nuts while he ruts me senseless!”

“Woah.” Shining blinked at me. “You weren't kidding when you said she was direct and to the point, were you Twiley?”

“I wasn't.” She swaggered between us, blocking my path to – and my view of! – her brother's magnificent endowments. “But don't get too carried away just yet, Rainbow. You still don't know what special activities I have planned.”

I peered around her. “Who needs plans? Let's start sucking his cock already!” Around the curve of her flank, I could see Shining's meat twitch and grow an inch or two. He must have liked that idea, too.

“No no. You'll get your chance at it Dash, but first we need to switch some things around.” She turned to him, giving me a fine view of her cunny – already soaked and dripping. “You ready, brother? No hesitation this time?”

He nodded. “If she's half as good with her tongue as you say she is...”

“I'm twice as good with my tongue as she says I am!” I boasted, earning a giggle from both of them.

Twilight stopped and concentrated for a moment, and her horn began to glow.

“Come on, Twi, what are you planning? Get on with it!”

A bright flash and poof of purple smoke answered my question. Now shining reclined on the bed with his hind legs demurely crossed – his slender, lavender hind legs. What? Twilight still stood in front of me, but she wasn't giving me a view of her drippy flower anymore – now she had a big white muscular butt... with a gorgeously massive pair of pale pink balls dangling between her legs.

“Do you like it?” she asked.

I blinked for a little while, my mouth gaping. “Oh my Goddess, Twi! Are we going to...?”

She turned and winked at me. “We sure are.”

I could have told her I'd never thought of such a possibility of this spell before, but of course, that would be a lie. The first thing I'd done last time, when she had me fly off to test the distance limitations of the spell, I'd darted right to Thunderlane's cloud house and shot in through his bedroom window. He'd been super-surprised, of course, but that hadn't stopped him from rutting her senseless. Heh. If Twi only knew that her bottom half had been returned chock full of pegasus cum! It was the ultimate birth control!

Twilight, of course, felt the need to fill the little silence I'd made. “We've been seeing each other on and off for a long while now, Rainbow... and now that I know how, I want to try taking you not like a mare, but like a stallion.”

“What about him?”

Twilight beamed. “I've bribed him with the promise of two-on-one expert cunnilingus.”

“Sweet.” I flashed her a winning smile. “So, how are we gonna start this—?”

Flash. Shining was teleported to the edge of the bed, belly up and back legs dangling over the side. Flash. I was suddenly on top of him, perfectly lined up for a sixty-nine. Flash. Twilight stood on her borrowed hind legs, bracing her front legs on the bed.

Her white-mottled cock dangled limply right in front of my face, the two half-moons of her balls peeking out from behind it.

Oh.

I handled it in the best way to handle anything – direct and to the point. Lifting my chin from Shining's soft lavender underbelly, I made eye contact with Twi and stretched out until I could lick the tip. Judging from her sudden hiss of breath, I'd done good.

No beating around the bush here. I quickly opened my mouth and wrapped my lips around the tip. Skin so soft on the outside, but I could feel the heavy, meaty core of it slowly hardening, accompanied by the still-girlish moans from Twilight. This was awesome! Greedily, I gulped it down, inch after inch, even as it grew more inches for me. I might prefer mares more, but this was hardly my first rodeo when it comes to making a stallion happy – I kept swallowing, kept pulling it in with my lips, even as its swelling tip began to slide down my throat, blocking it with its thick mass.

Shining stirred underneath me, and something warm and wet touched me in a place that was already getting pretty warm and wet on its own. Taking from my example, he dove right in. His strong, slippery, and shockingly hard tongue parted my lower lips and opened my slit for him... and he took full advantage of it, pulsing it up and down my slick inner walls and making me moan around his own cock, which Twilight was now busy thrusting lustily into my throat.

It was totally hard now and plunging crazy deep, but I kept at it like a champ. This was Twi I was sucking off! The hottest, most desirable mare in town! And anyway, I had a reputation to keep up, so I just enjoyed the sensations, savoring the feeling of the medial ring passing in and out of my mouth, tonguing the bulging veins at its base and letting my throat convulse around the smoother shaft deep inside. Every thrust had me kissing the rim of her sheath, and I brought a hoof up to massage those nice firm balls, loving the way they rolled around me. I could practically hear them sloshing.

Suddenly, Twi slid her length all the way out, letting my lips plop around the tip. I stared at it in awe. I'd never seen her brother fully erect before, and now I wished I had more often. How had I ever taken that whole thing in my throat?

She changed the angle of her white hips a little, and I saw what she was trying to do, so I slid my hoof up away from her balls and up to the smooth shaft. Super-slippery goo from deep inside my throat coated it, so I had to use a firm grip when I guided it to Shining's borrowed purple pussy.

Twilight rammed it home mercilessly, and between what my throat had given it and the heavily soaked nature of Shining's pussy, it slid in without any resistance at all, going balls deep at the very first thrust, pushing my own contribution deep inside.

Shining gasped and gave a girlish squeal, flinging his head back away from my needy crotch.

I supposed I could forgive him, though. He'd been patient so far. In fact, there was a little something I could do for him...

Twi was holding still with her borrowed cock buried to the hilt inside her own love tunnel. Those lavender lips quivered and pulsed around the massive shaft spreading them open, winking repeatedly. Every wink showed me a little flash of pink as Shining's clit bulged out around the organ filling his cunny.

My mouth still dripping with juices that same cock had coaxed from it, I lowered my head, nosing between the two soft-skinned bellies and licked away at it, my tongue sliding across the top rim of Twi's sheath when Shining's winks subsided and wrapping around his clit whenever it jutted out for attention.

Whether in response to that, or just because he'd overcome the initial shock of the sudden intrusion, shining returned to work on me, giving special attention to my own clit.

Twilight's thrusts grew erratic, and she spent a lot of time buried as deeply in that pussy as she could. “Unh! Oh Shining! I'm gonna cum!”

“Not yet no! I need more.” Shining moaned loudly. “Just think of the dentist!”

“Mmn... Minuette,” Twilight softly mumbled. “Can you just imagine thick white cum dripping out of her little blue... Ummn!”

I pressed my tongue against the tiny bit of that white-mottled cock I had access to, and I could feel it pulse and twitch as it unloaded huge spurts of cream into the mareparts below me, filling it until a dribble of white leaked out around the edges of the lavender pussy. I lapped them up greedily, reveling in the mixture of their sibling juices.

Twilight began to slowly pull her borrowed length out of her own pussy, and I watched mesmerized as it slowly slid out, revealing inch after glistening inch of soaking-wet stallion cock. It pulled free with a wet squelch, releasing a little wave of sticky white juice. Quickly, before it could soften, I leaned down and took it in my mouth. There was more of that incredible flavor here, and if Twilight's moans were anything to go by, my eagerly suckling mouth was just the dessert she needed after that meal.

“Oh Goddess, Rainbow! That feels incredible.”

I looked up at her, the slowly softening cock still in my mouth, and I slowly let it drop out just enough to let me speak, letting my lips rub across it as I formed the words. “I hope you're not done yet. You've still got some pegasus pussy to satisfy.”

Her cock pulsed and regained a little bit of its former length, pressing back into my mouth. If that hadn't been enough, the way Twilight's eyes looked into mine told me everything I needed to know. “Turn around,” she said.

Author's Note

This story is brought to you thanks in part to my Patreon supporters! They're invaluable for keeping me focused and motivated to write with the power of the deadline.

If you'd like to help keep me writing, please check out my Patreon page.

Twilight Sparkle

Rainbow hopped up and spun around in a quick blur; she always had to be the fastest, of course, but this time she had been given extra motivation. Laying down on Shining's half-and-half-colored belly, she slid back a little, pushing her tight, muscular little rump up at me and lewdly lifting her tail. Between those toned cheeks, her thin slit of a marehood winked up at me greedily.

I watched, biting my lip slightly, as a thin dribble of Rainbow's lubrication dribbled down to mingle with the thick stallion cum leaking out of the lavender marehood below it. It was enough to send a jolt of stiffness through the phallus I'd borrowed from my brother – it twitched, begging to be rammed into her.

I took my time and enjoyed the sensations, though, or at least I meant to. Leaning forward, I aligned my new equipment perfectly and kissed the tip against Rainbow's steamy nether lips. Goddess, the heat coming from her was incredible!

Still slippery from my brother's tongue, Rainbow's marehood was able to glide easily across the wide, flared tip as she winked repeatedly. “What are you waiting for, Twi? Give it to me!”

How could I ignore a request like that? Easily. “Not until you beg for it,” I whispered. It was so much fun teasing Rainbow.

“Screw that!” Rainbow jolted herself backward. Her thin nether lips spread wide and enveloped my tip, swallowing it easily and sliding down my already-slick shaft.

I gasped, unable to react in time to keep Rainbow waiting.

After a lusty grunt of her own, Rainbow looked back over her shoulder and grinned at me. Her marehood winked around the top of my shaft, rippling around it. “You don't mess with the Dash,” she said, following it with a laugh I could feel through my penis.

I grinned back at her... and then I jammed my brother's entire length inside her in one massive thrust.

Rainbow's laugh trailed off into a high pitched, almost bat-like, squeal. She collapsed down onto Shining, quivering and struggling just to breathe.

Her warmth, the incredible heat of her, surrounded me, pressing me on all sides inside her. I leaned down and whispered into her ear: “Better?”

She could only moan. I felt her entrance winking against the rim of my sheath. Her entire marehood convulsed around my immovable shaft. No way... there was no way she could be that fast, be that much on a hair-trigger. She couldn't already be close to—

Rainbow screamed right into my brother's ear, and the muscles inside her clenched down on me so hard I wouldn’t have been able to move. Hot juices sprayed against my sheath and balls as she clenched against my hardness again and again. She kept on, juddering as wave after wave of convulsions pulsed through her... until, finally, her legs gave out and she collapsed down on my brother, panting into the crook of his neck.

“Wow, Rainbow,” Shining said, “Twiley wasn't kidding when she said you were fast.”

She looked away from him and blushed. “It was just so...”

“Big?” I prompted.

“No...” She shook her head. “So hard, so... I dunno... insistent, primal?”

I grinned and moved my still-hard stallionhood slightly inside her, earning a squeal. “And it's not over yet.”

She whimpered slightly and melted around my ardent length.

Now, now that I'd sated her wild side, I could take it slow. Running my hooves along her heaving sides, I felt the long, lean muscles there. Underneath the softness of her coat, she was hard and solid and smooth. I pulled out of her slightly, feeling her nether lips rubbing against the sides of my shaft, trying to hold me in. And yet, inside her, beyond that clenching, winking boundary, she was soft as pegasus pudding. How could she be so firm on the outside and so plush and inviting on the inside? Even after all the times I'd messed around with Rainbow, I'd never been able to feel her literal softer side before. What a difference having a penis makes!

I rammed into her again, expecting the same squeal, but it didn't come. Instead, she just gave a low moan.

Goddess, she felt good wrapped around my shaft. With every thrust, I could feel her tight lips against me on the outside and the irresistible plush warmth of her insides. She was amazing, incredible! How could I have been missing out on feeling this my whole life?

“Oh Twiley!” Shining's grunt from below surprised me. “Keep doing that! I can feel you through her belly. I can feel your dick inside her!”

I grinned and changed my angle, pushing down more, earning moans from Rainbow and Shining.

Rainbow came again... and again... and again. One orgasm came on the heels of another, and I just kept thrusting through it all, getting closer myself every time she clenched around me, squeezing me so hard I could barely slide against the pressure of her inner walls. She and Shining started kissing, making out with an enviable intensity even as each orgasm rocked through her body.

She must have felt me flaring up inside her. “No! I—” she moaned loudly “—I can't get pregnant. Pull it out!” Shining shut her up with a heavy kiss, but it was too late. I couldn't ignore a request like that and live with myself afterward.

I winced. By this point, I wanted nothing more than to fill her pussy with my brother's cum. Luckily, I had a pretty good alternative.

Sliding out of Rainbow in one long, fluid motion, I popped free from her clenching pink marehood and aimed just a bit lower... The flared head of my stallionhood butted up against the dripping lavender vulva below, the wide tip of it simply pressing against the his lips. With enough pressure, though, it spread those lips wide and pushed inside, spreading Rainbow's juices as it went.

Shining gasped as his borrowed marehood was filled to the brim, forced to wrap around the round girth of it.

I was cumming before I even finished my thrust. Thick white spurts shot out into my own marehood on another's body, splashing out into the void inside even as I pushed deeper and deeper. By the end of the first wave, I'd fully hilted myself inside, and the pulses that followed surged straight into my own womb, deep inside Shining's body.

I emptied my borrowed testicles into my marehood shamelessly, letting it pour out around the edges in prolific splatters of mixed juices, pressing my trembling body into it as hard as I could, even as the spurts gradually died down to little twitches, and then nothing.

For a moment, we all laid panting. I could feel Shining pulsing my pussy around the still-warm stallionhood inside it. Rainbow looked back at me with a big, dumb, satisfied grin on her face.

“So,” Shining said, after we'd all caught our breaths for a moment, “about that promise...”

I pulled out of him slowly, watching the shiny-slick stallionhood slide out and eventually pop free, spilling a deluge of white when it came out and swung free. “He's right, Rainbow.” I hopped back off of them and stood next to the bed. “We've been neglecting him.”

Rainbow rose up a little higher, then leaned back down to give him a little peck on the muzzle. Then she took wing and darted around to land right next to me. “I think he's earned it... But it does look a little...”

“Messy?” I asked.

Rainbow looked at the sloppy marehood in front of us again. She nodded.

I smirked at her, stepped forward, and thrust my face into the middle of it, rubbing the steamy white mess all over my face as I nuzzled into that lavender crotch. When Rainbow gasped, I pulled back away with lots of sticky strands still connecting me to my own cum-filled marehood, and I grinned at Rainbow through the mess. “Come on in,” I cooed, “It's delicious.”

Rainbow stammered, but she took a couple small steps forward.

“Plenty of room for two.” I pushed Shining's lavender legs open wider.

She took a deep breath, almost as if she was about to make a deep dive into the ocean, and then she darted in next to me, kissing me full on my sloppy lips.

A few strands still connected us when we separated, and the two of us shared a sultry look between each other.

And then we gave Shining what he so richly deserved.

We both plunged down to his marehood and licked up each side of it, our tongues darting back and forth across the slit in between those plush lips. Shining's groans only spurred us on.

Slick nectar and cream coated his silky-smooth nether skin, from his borrowed marehood, from Rainbow's, and most of all, from his own phallus when I'd twice sprayed the full load of his testes inside. We devoured it all, Rainbow and I, greedily licking and slurping both his lips and each other's.

Of course, we gave each other less and less attention as Shining's body tensed, as his breathing quickened, as he squeezed his soft lavender thighs together to push us in deeper. I went low, flicking my tongue deep inside my own insatiable marehood, greedily licking up the endless trickle of salty-sweet juices it gave me. Rainbow opted for the high road, latching her lips onto the upper tip of the jutting purple vulva and sucking gently. I could see her mouth moving just above me, the way her cheeks bulged in and out as her tongue worked feverishly against Shining's clit.

Shining squealed. This was no masculine grunt – it was the cry of a mare who had been completely overwhelmed.

But soon, I was overwhelmed. The precious trickle I'd been lapping at became a flood, pouring out of his mare-form depths straight into my open mouth and down my throat. The whole mixture, the sexual fluids from all three of us, flowed into me at an astonishing rate. I swallowed as fast as I could, but by the time the flow ended, I was still left with my mouth full and the milky-white ambrosia dribbling from the corners of my lips.

As we both pulled away, Rainbow caught my eyes. Hers went half-lidded. Mine went wide.

She kissed me, splashing my mouthful of our juices across her face, plunging her tongue deep inside my still-full mouth. She lowered herself, forcing me to turn my head down, and her tongue forced my lips apart.

It flooded into Rainbow's mouth, sloshing around her tongue. She kept it there only long enough to look Shining in the eyes and swallow deeply. Impossibly, his face grew even more flushed as she opened her mouth wide again and showed him her squeaky-clean tongue.

Shining raised himself up to a sitting position, smearing even more wetness into the edge of the bedsheets. “Wow, girls. That was incredible! I've never felt anything like it before.”

I grinned and looked down. My brother's penis was completely erect again. How much of that was his own libido? How much of that was from how much arousal I was feeling?How much of that was from seeing Rainbow obscenely swallowing the mix of all our juices? It twitched, letting me know on no uncertain terms: it wanted to be thrust into something again. Who cared what I shoved it into, just as long as it found a home inside something warm and wet.

I glanced from my phallus, up to Rainbow, back down, back up at her. “So, what's next?” I asked with a twinkle in my eye.

Rainbow paused for a moment, in uncharacteristically deep thought. Then she grinned like a foal who'd just gotten away with stealing every cookie in the jar. “Give me your tail end, Twi. I want to feel what you feel when you're getting banged by your brother!”

I grinned, ready to give her exactly what she asked for. She had no idea what I was planning.

Author's Note

This story is brought to you thanks in part to my Patreon supporters! They're invaluable for keeping me focused and motivated to write with the power of the deadline.

If you'd like to help keep me writing, please check out my Patreon page.

Shining Armor

I was sure I had a big, dumb grin on my face, but I didn't care. I was still enjoying the afterglow of seeing Rainbow Dash swallow a mouthful my cum – or, at least, what was mostly my cum. Even though it had come from Twilight's using my bottom half, even though she'd twice pumped it into the purple tail-end I was using now, I still thought of that dick as mine. I had an attachment to it, even when I wasn't actually attached.

“So, Rainbow, you want to know what it feels like when Shining's on top of me?” Twilight asked.

Rainbow nodded, a confident smirk on her face. She gave a significant look toward my dick, watching it swing limply between my sister's legs.

Twilight matched her with a smirk of her own.

I'd only ever had Twilight's mare parts, never anypony else's. This would be interesting. Would Rainbow's hind end feel different than Twilight's? Then again, would the two of them even give me any attention at all? They'd have what they needed all on their own. Sitting here alone on the bed for any longer sure wasn't very appealing. I resolved to at least clop myself with Rainbow's pussy. If they ignored me, I could still at least have a little fun... plus, they'd be fun to watch.

Her horn glowing fiercely, Twilight concentrated hard – I knew it because she was sticking her tongue out, something she rarely did anymore.

This time, there were two flashes of her spell. I looked down, but instead of a pair of pale blue teats, I found my own familiar sheath and nuts. I looked up at the two of them.

They were a perfect matched set; one blue and purple, the other purple and blue. Twilight had simply switched the back halves of the two mares around. That suited me just fine. I was glad to have my familiar maleness back... and was quickly starting to anticipate what I'd be doing with it, which had a noticeable effect on its size and stiffness.

“Like what you see, brother?”

I nodded.

Rainbow glanced back and forth between me and Twilight. “Wha...? I don't get it. I thought you were going to show me what it's like to get boned by your brother.”

“Who said I was going to do it? To really get the big brother experience, you need the big brother himself. Isn't that right—” she looked at me, pointedly letting her eyes drop down to my package “—big brother?”

I nodded, grinning.

Rainbow shrugged and turned her tail to me, flipping it high over her back. “Well then, come on and get some, big brother!”

I didn't have to be told twice. I bounded off of the bed and practically ran up behind her. She flicked Twilight's purple tail high, brushing it up against my nose. The raunchy smell of sex wafting from it nearly overwhelmed my senses. She fluffed her blue wings out and winked Twilight's pussy at me, showing me tantalizing glimpses of my sister's pink inner walls, still liberally coated with different white and clear gooey liquids.

I mounted her, ready to shove myself in eagerly, but something took hold of my dick – something warm, soft and wet. Glancing down and back, I saw Twilight reaching her head under my belly. Her mouth pulled my tool up to meet perfectly up with Rainbow's borrowed pussy, pressing it against the steamy entrance. Taking a moment to admire it, I reveled in the novel feeling of my sister's mouth and pussy touching my dick at the same time. Then I pressed forward.

Twilight's already well-used lips opened easily, letting my shaft glide into it smoothly with no resistance at all.

Rainbow took it like a champ. “Oh Fuh... Fff... Unh! Oh my gosh, Twi! He's so deep inside!”

I pushed in farther, sliding all the way into her until her lips twitched and pulsed around the very base of my dick.

“Your pussy takes him in so easily!” Panting, Rainbow looked over her shoulder at Twilight. “And so deep! I can feel him, Twi. It feels like he's splitting me down the middle with that thing. Damn I love wrapping your pussy around it!”

Twilight grinned at her and moved closer, slipping a forehoof between Rainbow's back legs to tickle her teats, massage her thighs, and even reach all the way through, past where the two of us joined sloppily together to gently fondle my balls. “He's great, isn't he?”

I slid out of that oh-so-familiar pussy and slammed back in again before Rainbow could respond. All she was able to give was a startled gasp and then a deep moan as she melted in pleasure, her front legs collapsing underneath her.

Rainbow only lasted through two thrusts before she finished. As I slid back into her borrowed pussy's comforting embrace, she clamped down hard on it and squirted all over my back legs, spraying them with an intoxicating mixture of juices. I pressed into as hard as I could, feeling her convulse around me, pulling me in deeper and deeper, trying to use Twilight's pussy to milk me dry.

“Now that's interesting,” Twilight mused. “So it must be that Rainbow's speed to orgasm is dependent upon her mental faculties, not her physical attributes.”

Rainbow glared at her. “Could you stop studying for one minute— Ah!”

I'd started moving again, grinning down at her as I did, knowing what it would do to her.

“You're such a— Unf! ...an egghead!” With a little, high-pitched scream, Rainbow came again, her whole body jittering and shaking with the force of the erotic pleasure coursing through her.

...And I was just getting started! As I began to find my rhythm, I pounded into her jellified insides ruthlessly, giving her my full measure as a stallion. I didn't slow at all when she came again and again, soaking both of us with Twilight's juices. The little mare, once so feisty and now a shuddering wreck, bit down on one of her front hooves to quiet her cries and rode out orgasm after orgasm as I plowed her face into the soft carpet.

Finally, I began to get close to my own limits. I could feel the tingling, the static buzz of sensation curling from my dick through my spine and around my whole body, the insatiable need to slide farther and farther into her inviting hole.

“Come on, brother, you wouldn't ignore your little sis, would you?”

Twilight must have heard my grunting pants and known what it meant. I pulled out of Rainbow, leaving her collapsed and sweating on the floor, far beyond being able to complain about my absence... and I turned to face my sister, my beautiful adorkable sister.

She presented her ass to me... or, rather, she presented Rainbow's ass to me. Where Twilight's was soft and inviting, Rainbow's was all smooth and firm edges, powerful muscles squeezed into a tiny, perfectly shaped package. And in the middle of the deep, supple cleft of her ass cheeks, her prim and petite little snatch dribbled out a trail of clean, clear fluids that slowly flowed down her inner thighs.

I wasted no time in mounting her, and Twilight didn't allow for any fumbling. Her magic took hold of me and pulled me into just the right place right away. I let the pressure of my dick build against that tight little pussy, squishing it against the solid muscles around it, before it finally stretched enough to admit me and I plunged my tip inside with a satisfying plop. I could feel the ring of her entrance pressing around my shaft, feel it sink lower and lower around it, stretching wider and wider as it went. But beyond that constricting little ring, she was softer and more pliable than any mare I'd ever had, conforming to every contour of my dick without the slightest resistance.

Twilight moaned, then yelped as I bottomed out in Rainbow's pussy. “Aah! Not so deep!”

I pulled back slightly, wondering how Rainbow herself had taken it from Twilight if it was so uncomfortable. Maybe that little mare was just too tough to allow a little pressure on her cervix to stop her fun...

“Ah, yes. That's better.” Twilight wiggled Rainbow's rump around my dick, moving it around inside her. “Wow, she sure is sensitive. I don't know if I'll be able to last very long when you— Aah!”

I resumed my previous pace without warning, easily sliding in and out despite the constriction of Rainbow's tightly stretched entrance. Still, I pressed into her carefully, not wanting to cause Twiley any discomfort. Of course, I hadn't lost much progress after leaving Rainbow. Once again, I felt my dick beginning to swell even bigger.

Twilight hissed her breaths and opened Rainbow's legs as wide as she could, trying to accommodate the massive shaft pushing in and out of her, relieving some of the pressure.

That wasn't what I wanted.

I took her blue hind legs in my magic and shoved them together. Oh yes, that was better. Of course, I could always... I grinned, and moved her legs even farther, pushing one forward and pulling one back until they crossed.

She moaned and whined, and she tried to move side to side, but I held her there, still pushing into her in a quick rhythm. I could feel her pussy bulging from the pressure, pressing out around the base of my dick to rub against my medial ring instead of letting it rub against her firm ass cheeks like it had before. I grunted, panting heavily. I wouldn’t last much longer.

By then, Rainbow had come around, though she still rested on the floor in a puddle of Twilight's love-juices. She stared at us, grinning, for a moment, but then her grin faded and her eyes shot open wide. “Hey!” She shouted. “You'd better not be about to—”

It was too late. I grunted, pushing a thick bulge of hot cum through her constricting entrance and spilling it deep inside her. It filled her, coating her insides with virile seed, filling her to the brim. I'd never gotten off like that before. It just kept coming and coming, wave after wave of it flowing into her snatch, squeezing against her tight passage and flooding the softness beyond. Every twitch pulsed the bottom side of my dick against my sister's borrowed – and extremely sensitive – clit.

Twilight finally gave out. She cried out and came hard, using Rainbow's well-trained muscles to squeeze down on me and tease out every last drop.

Except, of course, her pussy was already overfilled with stallion meat and swirling cum. When she squeezed down, it all had only one place to go. Even as stretched as it was, the tight ring of Rainbow's entrance couldn't hold back the flood anymore. It sprayed out in a ring around all sides of my dick, squirting out with incredible force. Clear and white alike, it struck my thighs and spewed from them, scattering droplets over a huge area.

I glanced at Rainbow. She was staring at us, eyes wide and mouth moving soundlessly. A couple white drops had landed on her forehead, and another one slid down the tip of her nose. It would drip into her mouth soon if she didn't notice it first.

Pulling out of Twilight's borrowed pussy wasn't hard, especially when a new pulse of her inner muscles all but shoved my softening dick out. Another flood of the sticky white mess followed as we separated, splattering noisily on the already-soaked carpet.

Rainbow finally found her voice. “Twilight! You, you... You can't do that to me!”

Twilight just grinned back at her friend with an incredibly satisfied look that somehow mixed smugness with completely fulfilled sexual desire. “You know, I've read about it, but I never really believed it could be true... They say that a mare can feel it when she's impregnated, when a stallion's sperm finds her eggs. I believe it now – I can feel it, Rainbow. I can feel that new life inside me!”

“No! No! No!” Rainbow blanched, her face a mask of absolute horror. “It can't... you can't... Aaugh!”

Twilight giggled. “Oh Rainbow, you are such an easy mark.”

“Huh?”

“You should have seen your face just now! Did you really think I wouldn't add a simple contraception spell to the mix when I did all these body swap spells? I'm not a stupid mare, and I'm not about to risk creating the incestuously marred babies that would come from me and my brother. Besides, I have no idea what all this body swapping might do to the delicate hormonal balance of an early developing zygote.”

“Oh, right...” Rainbow rose up from the floor, still breathing heavily. “Magic.”

I laughed a little at that. Twiley did always have a somewhat twisted sense of humor.

But then there was a slight tapping on the window.

We all looked, and when I saw her, I could feel the blood drain from my face... it felt like the blood drained from my whole body. The room was suddenly too cold, too small, and far too constricting, closing in around me. Princess Cadance looked in through the window, one eyebrow raised haughtily. I'd been caught in the act... by the most powerful mare in the Crystal Empire: my wife.

Author's Note

This story is brought to you thanks in part to my Patreon supporters! They're invaluable for keeping me focused and motivated to write with the power of the deadline.

If you'd like to help keep me writing, please check out my Patreon page.

Princess Cadance

Looking in on those three oh-so-naughty ponies, I couldn't help but smirk a little. The look of panic in their eyes – especially my husband's – it was priceless!

For a few long moments, they all just stared dumbly at each other ... and at me. I took the opportunity to ogle my husband's fine, muscular rump, and to marvel at the spectacle of seeing Rainbow Dash and Twilight Sparkle with their rear halves swapped. Rainbow Sparkle and Twilight Dash? I mused with an internal chuckle. That was something I'd never seen before ... and it raised interesting possibilities. Very interesting.

Rainbow took the opportunity to dart behind the big bed and hide. Apparently she wasn't used to how high Twilight's tail stuck up, because a sliver of it still showed above the rumpled sheets.

Eventually, they came to and managed to process what had just happened. Shining was the first to recover, naturally. Hanging his head low, he plodded his way to the window and opened the latch, allowing me to fly in.

As soon as I set down on the crystalline floor, Twilight rushed up to me. “Oh my gosh, I'm so sorry! I didn't mean for it to go like this. It just ... I...”

I stared at her, watching her squirm. She wasn't even able to even make any excuses for herself.

“Honey, I—”

“Stop.” I didn't even let Shining start to embarrass himself further with his excuses. “You've all done one thing – and only one thing – wrong.”

Rainbow's face popped up from behind the bed, just barely enough to see. “What did we do wrong?” she asked.

“You didn't invite me.” I smiled at the three sets of very wide eyes that came as a response. “And I've already decided what your punishment is going to be.”

Twilight and Rainbow glanced at each other. Shining was the only one with the good sense to wince.

Rainbow even had the audacity to laugh. “See, what did I tell you? The clouds have eyes!”

“Twilight, you're going to give me Shining's rear end. Then, you two mares are going to fellate me. Thoroughly. Shining”— I looked at my husband piercingly —“you're going to swallow it. All of it.”

This time when the three of them glanced back and forth between each other, I caught a hint of smiles on the mares' faces. I waited patiently for Twilight to do the switch, wondering what my rear end would look like on Shining.

It turned out, though, that I didn't quite get what I was expecting. Twilight's magic flashed twice, and when the mist faded, it was Twilight herself who had taken my pink rear. Shining now had Rainbow's colorful tail. I did have Shining's bottom half, though, and that was the important part. Twilight had fulfilled the letter of my request, even if she hadn't done it quite how I expected.

I strutted over to the bed, doing my best to hide a slight stumble or two. Shining's hind legs were shorter and more muscular than I was used to ... and the feeling of his weighty balls dangling between my legs was more than a little distracting. Plopping my new rump down on the edge of the bed, I looked at them. “Well?”

After only a moment's hesitation, Twilight and Rainbow walked up to me, coming in close. The smell of the two of them was intriguing. Their girlish mare scents were still there, but swamped by the smell of arousal and spilled seed. I breathed deeply of it, savoring the moment.

The two of them shared one more glance between them, then dove in, each one pressing one of my white hind legs to either side, opening my crotch wide to give them both room to work. They started slow, kissing the insides of my thighs and the soft skin just above my husband's sheath, making me shiver in the anticipation of what was to come. When they ventured more boldly, it made me gasp. Rainbow, unsurprisingly, went for a direct route. She kissed her mouth against the opening of my sheath and pressed herself against it, sliding her tongue in to lick the head of my new cock even before it emerged. Twilight took a different course, going lower and breathing deeply against the smooth skin of my husband's balls, nuzzling her nose into them and licking slowly, softly, letting me feel the warm, wet texture of her tongue tingle as it glided across them.

I looked up at Shining. He was just staring, one big white and blue hoof working feverishly on the love button of his borrowed lower half. “Shining,” I said to him, “why are you out on your own? There are two mares here who need attention.” There was no way I was going to let him go through all of this simply pleasuring himself. This was supposed to be teaching him a lesson.

He shook his head, clearing out the cobwebs of distraction, and then went about doing what he should have been doing from the beginning. Twilight gasped slightly when she felt his tongue on her – I could feel her sudden intake of breath oh-so-intimately. When he moved a hoof up to caress Rainbow, she just moaned slightly.

This was all having a very noticeable effect on my borrowed maleness. My husband's tip slowly emerged from me, never even seeing the light of day before nudging its way directly into Rainbow Dash's mouth. The pegasus drooled around it, swirling her nimble little tongue all over, which made it grow all the faster. She gulped it down greedily with eager sucking, pulling motions of her mouth ... and then her throat. The soft, but still growing, stallionhood snaked its way into the little mare, exploring the inside of her as it went, bringing the most incredible sensations to me.

Rainbow's mouth dripped constantly now, dribbling a stream that flowed down my sheath and over my balls ... where it was quickly lapped up by Twilight's skilled tongue. My now-hardening piece, though, was giving Rainbow trouble. She gagged slightly, making a chocked coughing sound as the increasing hardness made the angle of her throat worse and worse. Still, she went on doggedly, bobbing her head faster even as the drool from deep inside her throat spilled down in thick gobs too quickly for Twilight to keep up.

I touched Rainbow's distended cheek, brushing my hoof up to flick some errant hairs of her mane out of the way, getting her to look up at me. “Mmn, that's very good, Rainbow Dash, but I think I've changed my mind. I'll want to sample everything you have to offer, especially my sister-in-law's treasure. Shining seems to like it a lot – now that I have his equipment, I'll try it out and see if it's really as good as he thinks it is.”

I could see the desire deep in her eyes: Shining's hoof work on her had been more than enough to get her in the mood. She pulled away, giving me my first view of Shining's stallionhood as it slowly emerged from her lips, inch after glistening-wet inch.

It popped free, and before it even stopped wobbling back and forth, Rainbow had hopped up onto my lap and lined up Twilight's winking, dribbling marehood with my husband's tip.

Twilight took the opportunity to slide her tongue up and up, dragging it from my balls, across my sheath, and slowly up my entire length without ever breaking her soft, warm contact.

Rainbow didn't give her a chance for a second lick. She plunged down, crudely forcing it into herself, sliding her slick inner walls down my husband's pole. I could feel her winking and pulsing inside even as she dropped. When she bottomed out, pushing Twilight's head back down and away, she cried out sharply, her whole body jerking.

Even after seeing it through the window, it was hard to believe. Had she really orgasmed that quickly? I had to admit a degree of envy, wishing wistfully that I could know what it was like to get off so easily. Rainbow had probably never had an unsatisfying sexual experience in her life! ... Not that I had much cause to complain. Shining was always very considerate and made sure I enjoyed it. He'd even licked me right after finishing inside on a few occasions.

Shining was still showing his quality, of course. He was mercilessly eating Twilight's borrowed marehood out, his face buried under her rainbow-colored tail.

As Rainbow's convulsions died down, I began moving, rocking back and forth in the motion I'd learned to love as my favorite long before I'd even met Shining. Maybe there was something to this. Though I didn't have much to use as a comparison, Twilight's love tunnel felt incredible rubbing against my borrowed maleness. It seemed like a perfect fit, wrapping snugly around me, giving me just enough depth to go as deep as I could without hurting Rainbow, swallowing my swelling flare with ease.

Swelling flare? My eyes shot open wide, even as Rainbow went into another twitching orgasmic fit. I didn't know what it felt like to get off as a male; I didn't know what the warning signs felt like. But I'd felt that wide-flaring tip inside me enough times to know what that meant.

Using my magic, I pulled Rainbow off of me, earning a yelp from her as the huge, bell-shaped tip pulled out of her. When I set her down in front of me, though, she didn't waste any time in joining Twilight in her efforts. The two of them massaged my shaft shamelessly with their tongues and lips, even dragging it across their cheeks. They traded off between each other, giving one the chance to try and squeeze my tip into her mouth while the other licked lasciviously up and down before giving it a try herself.

Neither of them were able to take the entire flared head into their mouths ... but they didn't need to. I cried out, “I'm – I'm going to—”

They were there instantly, both of them with their muzzles right beneath my tip, mouths held open and tongues out, just barely touching the wide, flat head of it.

I exploded onto them and into them, flooding their mouths with Shining's warm white seed. Grunting and thrusting needlessly, I gave them gush after gush, throwing curving, dripping lines over their faces, shooting thick streams into their mouths over and over until my first male orgasm finally subdued.

I lay there, shuddering and breathless, unable to do a single thing.

But Shining Armor – ever dutiful – didn't neglect the task I'd given him. By the time I'd managed to raise my head to look, he was already right in between the two mares, crouching low and holding his mouth open wide. Rainbow gave it to him first, rolling her tongue into an 'O' shape and letting the thick white liquid ooze down into Shining's mouth where he swallowed it quickly. Twilight wasn't far behind. She opted for a more intimate approach, giving him a very sloppy, very sticky kiss on the lips.

I watched, my mouth drooping open, as I saw Shining's throat pulsing – my husband glugging down his own seed to satisfy his wife's whim. How could I be mad at a husband so devoted?

He didn't stop there, though. Once the mares' mouths were emptied, he went on to licking their faces. Both of them giggled and playfully tried to bat him away as he did, but he was very thorough, not stopping until the two mares were completely clean. His eyes never left mine for a single moment.

I was filled with the warm glow of devoted love ... but I didn't expect what he did next.

He dropped to the floor where I could barely see him, making me sit straight up so I could look ... and find him licking a few white splatters off the gleaming floor.

My jaw dropped and my eyes went wide. Truly, how could I deserve a stallion like him? Sure, he had been cheating on me, with two mares, no less ... but what was that compared to such devotion?

I caught his chin with a hoof. He wasn't quite done licking up the mess on the floor yet, but he'd made his point, proven himself above and beyond what I'd expected. More to the point, the warm flood of love filling my chest wouldn't let me bear to be away from him any longer. Following my guiding hoof up effortlessly, he glided up to meet my lips in what I still think back on as one of the most memorable kisses we ever shared. His lips were soft and deep, his tongue scented with the taste of his own seed. I didn't mind the taste – it wasn't the first time I'd had that in my mouth, after all. What I wanted was him, every part of him and nothing but him. This was bliss.

“Umm...” Rainbow scratched at the back of her head. “Should we, uh, leave you two alone for a little while?”

I nodded. “Yes, but first, Twilight?”

“Of course.” Twilight's horn glowed, and the now-familiar flashes followed. A moment later, everypony had their own familiar hind end restored.

As invigorating as the change of pace was, there were a few sighs of relief at a return to the familiar, mine not the least. I hugged my Shining Armor close, nuzzling into the crook of his neck, as the two mares made a quiet exit.

Not quiet enough to escape Shining's notice, though. “Twiley, when we come downstairs, do you think you can teach your new spell to Cadance?”

She nodded, then gave him a scandalous wink. “Of course.”

I grinned into his fur and held him even tighter. Now I had something interesting to look forward to. Shining didn't know – or need to know – about our traditional Annual Royal Equestrian Love-in: it was for princesses only, after all. This year's would be much more interesting, though, when I walked in sporting an oh-so-healthy stallion's lower body!

As Shining's hoof petted the back of my mane in slow, relaxing strokes, I drifted off to a lovely sleep, filled with dreams of just what I would do with that new-found power.

Author's Note

This story is brought to you thanks in part to my Patreon supporters! They're invaluable for keeping me focused and motivated to write with the power of the deadline.

If you'd like to help keep me writing, please check out my Patreon page.