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Miyuki's Secret

~A Persephone and Tritonia Story~

by Zmeydros

(Edited by Tiliquain and Secretskunk)

Thin lines of sunlight were cutting across the sparse military apartment I'd spent the night in. The walls were so white that those slivers of sunlight were illuminating the whole bedroom, including the two tied off XXXL condoms full of jizz that I hadn't put in the wastebasket yet. What I needed was my giant equine dildo, but I'd left that back at the base because my heat wasn't supposed to happen for three more days.

My phone chimed, telling me it was time to get ready for my meeting with Miyuki.

I glared at the flat head of my rock-hard stallionhood and then put my mouth over it as I started to stroke it. I'd already exhausted my condom supply, and I needed to get off at least once more before I left.

Getting into an awkward position against the headboard, I reached under my balls and worked my fist into my pussy, hoping that a simultaneous orgasm would finally do the trick. As my pussy lips stretched and my knuckles popped inside, I moaned around my shaft. My snatch was like a furnace and was grabbing at my fist so greedily that it was practically stuck in there. Licking at my cum hole and the sensitive beads at the edge of my flare, I worked to get myself off as quickly as possible.

As my pussy clenched, my prick flared, and my balls twitched I saw a white flash. My whinnies were muffled by me swallowing every drop of the torrent shooting out of my shaft so I wouldn't have to clean up.

A couple minutes later, I sucked the last bit of jizz out of my member. Then I popped my fist free of my cunt and dashed to the shower.

Even though I was avoiding stimulating my erogenous zones, everything was tingling from my heat. This entire process was complicated by me being over seven feet tall. I had to bend my knees to get my head under the shower spray and the glass shower walls and door left me no room to maneuver.

As I soaped up my sensitive bits, my balls rubbed against my clit, and my shaft came half-way out of its sheath. When my pussy winked, I whinnied and knocked my right elbow into the shower wall as I tried to stay upright.

The shower wall on my right now had a spider-web of cracks. "Shit!"

I rinsed off and then went about drying my short horse fur while being very gentle with my sensitive parts. It didn't quite work; my prick was halfway up my belly by the time I was done. I let my dick hang loose as I went into the bedroom, hoping it would retreat on its own if I didn't touch it. I picked up my phone off the nightstand and when I turned to sit on the bed, my cock slapped my water glass off the nightstand. It was a cheap plastic tumbler, so it didn't shatter, but the water in it went everywhere. I swore and tossed my towel on the linoleum floor to soak up the water. Then I sat on the bed and unlocked my phone. This heat was making things impossible.

While typing out a message to Miyuki, my tail swished in frustration. "Can we reschedule the meeting? An urgent matter has come up."

"Today's my last day on base until next month. We can reschedule for then, if you like," Miyuki sent back.

Waiting another month to test Tritonia and Tsubumi's combat capabilities was a dangerous gamble. "The favor I need to ask can't wait that long, unfortunately."

"My apologies, I'm afraid my other duties are rather inflexible," she said.

My equine nostrils flared with anger. There was no way Miyuki was that busy. She was the liaison for the Japanese arm of the POSC and not directly in charge of anything. "Understood, in that case, I'm going to be twenty minutes late."

"If you could make that fifteen, I can guarantee I'll have enough time to fully discuss your request and get the paperwork through today," she said.

Throwing my phone onto my bed, I said, "Urgh, you bitch!"

Now that my frustration was burning a lot hotter than my libido, I managed to stuff myself into my boxers and uniform pants easily. Once I was dressed, I headed out my door and down the hallway of the drab all-concrete barracks building. When I exited the front door, I glanced back at the blocky white exterior because I'd completely forgotten what it even looked like. From the air, it had an interesting design where two long rectangles met a smaller rectangle in the middle, making a very abstract S shape. None of that visual interest was visible from the ground, which made me wonder if these six barracks buildings were built to impress people flying in rather than the people who lived in them.

At either end of the line of buildings was a tiny bit of grass and then roads so wide that they looked like they were built for two-way tank traffic. To the north, just on the other side of the road, was a long hill peppered with tropical vegetation. To the south, where I was going, was an oddly disorganized group of rectangular single-story buildings in a right-triangle-shaped field. As I navigated the deranged network of sidewalks that ran between the buildings, my hooves clopping on the concrete, my balls rubbed against my swollen clit. Not daring to let my mind wander, I focused on my destination: the kit-kat-bar-shaped building that ran along the triangle's hypotenuse.

When I got up to the entrance, a short, but buff, lieutenant stopped dead in his tracks, still holding the handle of the simple aluminum and glass door. His eyes darted over my form, trying to make sense of me while trying not to stare too long at the large bulge between my legs.

"Yes, I know, I'm a hybrid. May I pass?" I asked.

He blinked and then pulled the door open all the way, saying, "Yes ma'am."

"Thanks," I said as I strode past him.

The lobby had a seventies sea green color scheme, complete with a cherry wood reception desk. Behind the desk was a wiry man with a thin build that didn't quite fill out his regulation blue and cyan POSC uniform. His buzz cut and blue eyes made him look as though he was a factory model American soldier.

He looked up at me and then raised both eyebrows as he realized just how massive I was. Then he quickly paved over his surprise with professionalism, taking on a relaxed, neutral pose. "Are you Charlemagne? Miyuki's Ten-thirty?"

I nodded and then he picked up the receiver of his ancient beige desk phone. Hitting the "Conference Room" button, he said, "May I send her in?"

I heard Miyuki say, "Yes," on the other end in her irritatingly smooth voice.

He gestured toward the door even though I was already walking toward it and said, "She's ready for you."

Pulling open the conference room's heavy soundproof door, I ducked through the doorway and went inside. The room could fit up to eight people comfortably. The walls and ceiling were covered in four-inch-thick acoustic foam and there was a sixty-inch monitor on the wall opposite the door.

Myuki was at the head of the teardrop-shaped conference table, looking at the bulky diving watch on her left wrist. "Thirteen minutes," she said, looking up at me. "Thank you for being so considerate of my schedule."

She had this smile that was so sweet, so condescending, that it made my hands clench into fists. I glared at all five-and-a-half feet of her while wanting to set her straight shoulder-length hair on fire.

"You're welcome, I apologize for the delay," I said, doing my best not to show my irritation.

"Apology accepted." She gestured to her right. "Have a seat."

Sitting in the chair, I said, "Before we start, I need to ask you something. I know you're the liaison, but Commander Harada and I go way back and I'm perplexed that he didn't meet me personally to discuss this matter."

"We've simplified things. All formal requests for assistance will go through me from now on," she said.

"I understand the merits of that approach, but I worked very hard to develop trust between Harada and myself. I feel like this arbitrarily returns everything to square one." I resisted the urge to sniff the air; something in this room smelled good. Too good.

"It's not arbitrary at all, a lot of thought went into our decision. Plus, you and I are now the same rank, so in a way, doesn't it make more sense for you to go through me?" she smiled, as if her observation was a good thing.

"So, you're an officer?" I asked, glancing at her sharp-looking black business jacket, which had no indication of rank.

Sitting in the cleavage window of her yellow blouse was a simple black leather necklace with a knobbly piece of polished cedar wood as a pendant. It might have been my imagination, but every time I saw it, I swore it emitted a soft green glow.

"Surely you're aware I'm a civilian," she said.

"It was rhetorical. I was pointing out that we don't share a rank."

"But we both serve a similar function and have a similar amount of power now. The only reason I'm not officially an officer is that I didn't enter this line of work the same way you did," she said.

"Why is this distinction important to you? If you want to be an officer, all you have to do is go to a military academy for a few years." I sat up straighter so I towered over her more.

"I assumed you wanted to have a discussion about the finer details when you criticized my assertion." She chuckled. "It seems I've learned nothing from our previous interactions, I apologize."

"Let's shelve that topic, then." I clenched my fists harder as my sheath tingled. "I'm here because I need to use an NPO that Japan loaned to The Roosevelt Roads Collection."

She opened her ruggedized Thinkpad and used a USB key along with her password to log in. Then she said, "The NPO you've requested is unfit for testing synthetic organisms, so it's unfit to test Tritonia's capabilities."

I narrowed my eyes at her. "Bullshit, we've used it on everything in the past."

"There's no need to swear, we've changed our procedures because we have a recent acquisition that is better suited to gauging the battle readiness of synthetic entities." She adjusted her round, thin-framed glasses.

"A recent acquisition?" One of my ears fell in question.

There was a cherry blossom scent with an earthy undertone that was making my heat ten times worse, but it couldn't have been coming from Miyuki. She was far too composed to be wetting her seat with her pussy and humans didn't smell like this. Hallucinating scents was a new aspect of my heat and I hoped it would stop soon because my cock head was going to clear my sheath any moment.

Miyuki closed her laptop and set her hands neatly atop it. "When dealing with classified information, it's important to make sure that there's ample trust between all parties. I believe we need to reach a place of mutual understanding before we go any further."

My cock head pressed against my herm boxer briefs. "The reason I like Harada is that he doesn't run me in circles. I'm beginning to think that this meeting isn't about my request."

"Oh? What else could it be about?" She sat back and crossed her legs.

I sighed. "I think this is my cue to leave."

"Charlemagne, you know better than anyone that trust has to be earned," she said. "How can I be sure that you'll act with our best interests in mind?"

I dug my fingers into my thigh to distract myself from my prick continuing to harden. "In all my dealings with Japan POSC, I've been clear about my expectations, I've been open to critique, and I've been quick to aid whoever needed it."

"All true, but that's not all that's needed to gain trust. One must also be sound of mind," she said.

I glared at her. "Are you questioning my sanity?"

Miyuki leaned forward. "Commander Harada was on the bridge chatting with Captain Steier when you ordered her to get in range of Mark Brin's sub and open her torpedo tubes."

My eyes widened and my ears folded back as humiliation poured through me. "My apologies, I was having a bad reaction to my transformation."

"What sort of bad reaction?" she asked.

"It was a temporary problem that has now been dealt with," I said, hoping she'd drop it.

"Do you have plans to retake command, then?" She tilted her head even though I was sure she already knew the answer to her question.

Looking at the tabletop, I said, "No."

"I see." She tapped her right pointer finger on the tabletop assertively as she spoke. "As a first step in us gaining mutual trust, I think it's important that I know what this less-than-temporary problem is."

"I'm sorry, but that's very personal," I said, avoiding her eyes as my ears blushed and my clit started to throb.

"How about we make a trade? Personal info about me for personal info about you?" she asked.

My prick found its way out the leg hole of my boxer briefs. The scent I was imagining was getting very strong. "I'm sorry, but I can't agree to a trade like that."

"I humbly ask that you reconsider." She reached up and grabbed the wooden pendant dangling from her necklace. "Here, I'll go first to make things easier: I'm more than human."

I blinked. "What?!"

Her face pushed out as her nose got darker. Reddish-brown fur spread down her cheeks as reddish-cream fur filled in on her growing muzzle. The earthy cherry-blossom scent became overwhelming and my cock started shoving its way down my pant leg. She groaned and arched her back as her ears got rounder, bigger, and covered with fur. She pulled off her business jacket and then pulled down the back of her skirt as a bushy, brown-and-dark-brown ringed tail exploded from her backside. Her breasts started stretching her blouse while she moaned and panted.

The sounds she was making got my cock throbbing so hard it was bouncing in my pant leg.

The dark brown fur around her eyes and over the top of her muzzle made a mask. Fur filled in on her arms and went down her neck as she got paw-pads on her digits. At first I thought she was a raccoon hybrid, but her fur's reddish tint made me think of a tanuki.

The fur on her arms and hands was dark brown, making it look like she had shoulder-length gloves on. Her bust was being squeezed by the tension in her blouse and bra, her muzzle was complete with whiskers, and her bushy tail was three feet long. Her eyes gained a soft green glow as their color changed to a lush forest green. A heart-shaped leaf fell from a few inches above her and then landed on the right side of her forehead. It was green like one would expect from a normal leaf, but it was oddly vibrant, like someone had turned up the saturation on it.

She let go of the wooden pendant, which was glowing bright green at the center. Pointing at it with a blunt claw tip, she said, "This Sentient NPO and I can merge into one being and that process turns me into a hybrid." Her voice had another voice under it which was lower in pitch and sultry.

The scent that was driving me wild wasn't my imagination and it was impossible to ignore.

"Is it dangerous?" I asked.

She gasped and shifted in her chair. "It puts me into a similar position to what you're experiencing at the moment, but is otherwise safe."

I blushed so hard that my cheeks and ears burned. "So your superiors trust this SNPO?"

"Not at first, ngh!" She spread her legs wider. "You see, this SNPO lived in a shrine that my family took care of for generations, but my grandparents lost the land when they expanded the naval base. When the construction workers came to relocate the shrine, it asked them where my grandparents had gone. After that, it ended up in Japan's NPO archive. It was so polite and insistent that they eventually approached me and asked me to go talk to it."

Her skirt brushed my knee, but I didn't see her move, so I was confused for a moment. Her scent was getting more spicy. "And then whatever was living in the shrine merged with you and no one thought that was dangerous?"

"Oh, it happened over a long period of time. The shrine first told us about other shrines that had spirits living in them and asked us to leave them alone if possible. After a year of us talking regularly, I had become very close to Mujina, the spirit in my family shrine... and she asked me to take her with me wherever I went. Getting approval was really hard, even though she was such a helpful spirit. But it was totally worth it. This form is quite useful."

Her skirt was brushing against my knee more firmly and I had no idea how. At first I thought her tail was down there, but I could see it behind her. As I tried to speak, my pussy winked and I clamped my hands over my wide muzzle to suppress a whinny.

She waited for me to settle before she said, "So now you know--" She bit her lip and grunted as I heard fabric tearing under the table. "--a lot about me and Mujina. Could you please tell us why you nearly started an international incident?"

Seeking an honest answer, I remembered the anger and frustration that had made me feel like punching the entire world. But then I bit my lip as I remembered getting hooves, fur, a muzzle, a horse tail, and a dick. I remembered how much I needed to use my new cock. How much I needed something in my stretchy mare snatch.

Fuck, I felt almost the same now. This meeting had gone on too long and Miyuki's scent was driving me insane. I wanted to answer her question, but I couldn't grab onto anything I actually wanted to say aloud.

"Why did your scent get stronger the moment I asked...?" Her eyes went wide. "Aha! Mujina was right about you! You're the type that hates losing control, but your body was changing and, you...you were having your first heat, weren't you?"

I made the slightest nod, wanting to hide under the table.

"It's all making sense now. I was in a similar spot when Mujina and I first became partners," she said.

My prick strained against my pant leg, reaching full size as the wetness from my muff soaked through the seat of my pants. I tried to respond, but a whinny wanted to get out, so I just nodded again.

"Hnnngggh!" she groaned as the tearing sound got very loud and then something snapped.

The thing against my knee was a lot warmer without the layer of fabric it had been trapped in and I could clearly feel it throbbing against my leg. Gripping the tabletop, Myuki thrust with her hips, rubbing the side of that thick hard something against me.

My pussy winked so powerfully that I squeaked and writhed. I knew what was rubbing against my leg, but I didn't dare think about it because I knew I'd be unable to resist turning this meeting into an orgy if I did.

"Oooh, is your heat why you wanted to reschedule this meeting?" She grinned.

"Ngh! Yes, I need to go, so just requisition the NPO that you use for characterizing synthetics as well and we can end the meeting," I said.

"Are you sure that's all you want from us?" She thrusted her hips forward, rubbing her shaft against my leg. "Mujina had me grow this so I could help you out, hon."

"HaaAAAH!" I ground my swollen pussy lips against my seat as I wet my pant leg with pre. "I thought you didn't like me."

"True, before I understood you. But now you're finally being honest with me and it's not every day that I get to meet a hybrid that's as in need of Mujina's shapeshifting capabilities as you are right now." Miyuki licked her lips as she glanced at my cleavage.

I moaned and arched my back. The throbbing in my loins was maddening. All I needed to do was get out of my chair, pull down my pants, and lift my tail. With how hard she was, she'd take care of the rest. Yes, I needed a cock inside me. I needed her to rut me like a...No, I couldn't let my body get in the driver's seat.

"I'm glad we came to an understanding, but my heat isn't your responsibility. I should go back to the barracks and take care of this." I shuddered as I stiffly rolled my chair backwards and stood up. My prick was making an embarrassingly obvious bulge in my pant leg.

Miyuki slid back in her chair and folded back her skirt, revealing several inches of her beautiful, thick black horsecock. "It may not be my responsibility, but both Mujina and I are very interested in the opportunity to get to know you more intimately."

I froze, my eyes unable to look away from her length as my pussy winked so hard I had to grab the back of my chair to avoid falling over. As she stood, her massive member remained clearly visible, holding up the front of her skirt.

She reached down and slipped off her panties, which her cock had practically destroyed, and held them out toward me. They'd soaked with pre and feminine nectar and the scent was so strong that my nipples hardened simply from her having them near me.

"It's not our fault we're hybrids. It's not our fault we go into heat. The only blame that can be put on us is when we ignore the animal inside of us until it breaks free," she said, moving her panties right in front of my muzzle.

With my instincts taking over, I grabbed her panties out of her hand and pushed them up against my nose, and drowned myself in her scent. Pre spurted down my leg as my mind filled with a bestial desire to rut.

Knowing she had me, she bent over the conference table and lifted her tail to show off a gorgeous mare pussy, complete with a thumb-sized throbbing clit and plush stretchy lips. Dangling below were balls a bit bigger than mine. On her frame, they looked ridiculous, but that only made me want her more.

Looking back at me, she said, "Charlie, if we can't help each other when both of us are this desperately in need, what's the point in developing a rapport at all?"

Still holding the panties against my muzzle and only vaguely aware of what she'd said, I undid my pants and boxer briefs, letting my giant horsecock flop free. Then I lined up with her and shoved forward. Her silky passage spread for me better than any I'd ever been in and I got every inch in her before I knew what was happening.

She chanted "Yes! More! YES! MORE!" the whole time I was entering her.

When my balls brushed against hers, I looked down in disbelief. How had this tiny woman taken my entire member? Even Percy struggled to fit it all. It was so tight in Miyuki, so hot, and yet it felt like she was built for me.

"Stop waiting for permission and just go for it, hon. We need this," she said, as if she was encouraging me to share my findings at a meeting. As if this was completely normal behavior.

Everything became a blur. I grabbed the base of her tail and bucked into her pussy like I was a racehorse galloping for the finish line. Her tightness and her inner muscles slowed me down, but it was still the most vicious dicking I'd ever given anyone. I was growling and swearing as I tested the limits of my stamina while she tested the room's soundproofing with guttural yowls of passion. Her pussy was so wet that the backs of her balls were slick. Our balls clapped so loudly that it sounded like our fucking was getting applause from an unseen audience.

The moment my flare started expanding, she said, "Yes! Fill me like a stallion would!"

My orgasm hit like a flash bang. One second, I was thrusting so fast I couldn't feel my legs, the next, I was slamming into her one last time while a shockwave of white hot bliss traveled up my cock and then crashed through my whole body. I whinnied as I erupted inside her, filling her until her belly was round from all the cum trapped in there.

Pressing back against me, she gasped as her cunt clenched rhythmically around my shaft and milked me for every bit of cream I had. Why it was so satisfying to feel her pussy gripping my dick while her humongous balls bounced against mine, I had no idea. But I orgasmed again, right on top of what I was already feeling, making my body gyrate in an uncontrolled dance of passion.

When it was over, my legs and buttocks were numb from the exertion and I had to hang onto her waist to stay upright.

As we worked to catch our breaths, my snatch's juices started dripping off my clit, making a stream that went down my ballsac and then fell to the floor.

Still panting, she said, "Get on the table and lift those marvelous balls out of the way. I gotta get in you before the entire building smells like a horny mare."

Gasping and blushing, I pulled out, letting cupfuls of jizz splash onto the floor. Then I laid back on the table, the burning in my loins not letting me think about anything other than Miyuki's dick. Settling between my legs, she nimbly unbuttoned my uniform shirt and helped me out of the rest of my clothes before pulling off her top and bra to expose her nice round tits. Grabbing her left nipple, she put the thick head of her horsecock at my entrance.

The moment I lifted my hefty balls out of the way, she rubbed her pre-slicked blunt cock head against my dripping snatch. I squirmed atop the table, squeaking at the sudden rush of ecstasy as she teased my clit with her big equine cum hole. When my muff winked and I gasped, she groaned in satisfaction as she popped the head of her prick inside me.

"Mmm, we're so pent up, there's just not enough hybrids to play with." She shoved forward, giving me a couple more inches. "Oooh, I can hardly believe how good this feels."

"Haaah! Not used to having a cock?" I asked, barely able to find words.

"Unf, no!" She pushed in all the way to her medial ring, gritting her teeth and pulling on her left nipple until milk beaded on it.

I held my head and whinnied as my pussy winked around her intruding cock over and over again.

She pulled back and then shoved forward, stuffing her medial ring and then the rest of her dick into me. Only the equine dildo I had back at the base was close to her size and the bit of stretching I was having to do was giving me flashes of ecstasy. And she just didn't stop. It seemed she couldn't sate herself, that every bit of delight she extracted led her to want more.

Her tiny body was intimidatingly strong and her unreasonably large tanuki balls were spanking my ass. The more she fucked me, the more I needed to see just how much she'd cum. Her flare was thickening, stretching my depths and giving me tingles that went all the way down to my hooves.

Leaning over me, she started sucking on one of my nipples until she got milk, then drank from my tit greedily. I came around her cock as the spike of pleasure from my nipple crashed into the intense bliss from my pussy. She just kept going, even switching breasts. Meanwhile my swelling dick was sliding up into her cleavage as her nipples wet my fur with milk.

Suddenly, she pulled off of my breasts and grabbed my mane. Using her impressive upper body strength she pulled my head up to her breast and offered her right nipple. I started sucking and got a deep cocoa butter and cherry blossom flavor that I couldn't get enough of. She slid my prick into her cleavage and fucked me with short, hammering thrusts as her cock got thicker at the base. Struggling between my urge to sample her milk, my moaning, and my need for air, I was completely at her mercy as her dick flared and her knot started popping in and out.

Just as her knot was getting too big to keep pummeling me with, she pushed me onto my back and fed me my own cock.

"I want to watch you swallow your own...HAAAH--AHHHH! YESSSS!" She arched her back and shoved her knot in one last time. Her flare expanded so much that I saw stars.

My whinny was more like a feral scream and we were both lucky it was being muffled by my dick. At first, my snatch came around her shaft, squeezing it along its length to get as much cum as possible, but then my own shaft started thundering and the flare forced me to open my mouth wider.

Her knot locked us together as the dam inside her burst. The amount of spooge shooting out of her girthy prick was unbelievable and my belly started to round after only a few shots.

She cried, "OH CHARLEMAGNE!" as she came only to gasp and squeal as she watched me drink down my own load. Her hips kept making little thrusts as she grabbed her nipples and shrieked from the intensity of her orgasm.

I wrapped my legs around her buttocks and forced her in as deep as she could go as the last wave of my orgasm carried me to a place I hadn't been able to reach since my heat had started.

Everything got a bit fuzzy and the afterglow got me so relaxed that the hard tabletop was indistinguishable from a mattress. Her hands caressed my head and tugged playfully on my mane and long horse ears. Her lazy smile and adoring gaze made me feel even more content.

Brushing her paw pads over my belly fur, she said, "I think you should invite me back to your room so we can continue our negotiations."

I blinked. "Don't you have another appointment to get to?"

"No, I have the entire rest of the day free," she said.

But you said that--"

"I needed you to take me seriously. You've been treating me like an obstacle ever since I took this position," she said.

I couldn't decide whether I wanted to talk or grind on her knot, so I did both. She just felt too good in there. "I still don't understand why going through you makes more sense than me just talking to--Haaah!--Harada like I always have, but I now see some clear benefits to this--NGH!--arrangement."

"If that's an apology, you need to try again," she said.

"Just because your dick's inside me doesn't mean you're right," I said, still getting amazing sensations from moving my hips.

"We'll have to see what your stance is after we've done this a few more times." She grinned.

"We'll have to see if you even have a stance after I'm done with you," I said, clenching so hard around her dick that she squirmed and groaned.

THE END

This story went up on my Patreon four months ago.

To find out how Charlie ended up a curvy mare herm: Click here to read "Charlemagne's Stolen Secret" on

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