Holding Fast and Letting Go

The Princess regarded Mary, splayed on the ground like a martyr. The human in turn looked up into Celestia’s diamond-bright eyes, knowing what was coming, and accepting her fate. She would accept anything that was given to her this night, without reservation, without hesitation. She would take it all.

“Why me?” She whispered the only question that remained.

Celestia’s entire body vibrated like a taut string as she looked down at the piece of human fuckmeat writhing on the floor, and she showed her teeth like a beast as she took in the scent of overheated pussy. “Vorfreude. Vorfreude. You want to know why I turned you out?”

The alicorn shuddered. “I could tell you it’s because you appreciate magic for the beauty and passion that it represents. I could also say you have a shockingly high compatibility with sorcery, higher than any human I’ve seen yet, and I want to convince you to become my pupil. By fucking you. I’m fairly persuasive in that way.”

Princess Celestia took a half step closer. “But those reasons are secondary. The truth is, I saw the want behind your eyes. The fucked-up fantasies unfulfilled, the holding back of your real self in the face of ridicule.”

She took another step. “You’re a filthy horsefucking anal slut, Dr. Mary Parvotti. I wanted to experience that part of you for myself. And now that I have, I need to possess all of you. I’m afraid I can’t hold myself back any longer, little pony.”

Celestia’s horn glowed a soft white, and Mary heard a thunk as the lock on the front door disengaged.

The Princess was panting now, and her hips were thrusting subtly, her fat fucker searching for a wet hole. “This is your last chance. You have no idea what it’s costing me to keep from…oh, Mary…you need to hurry. If this isn’t what you want, run. Even if a relationship between our people becomes impossible, I want to give you a choice. Now, make it. Before it’s too late.”

No hesitation.

Mary spread her legs in a wide V-shape, tilting her hips upward as she presented her steaming cunt to the predator above. Her feet hiked into the air, with her sleek black panties inexplicably still hanging onto one slim ankle.

“It’s already too late, Princess,” she moaned. “It was over when I first saw you…you and your goddamn big ass. I never really had a choice at all, and neither did you.”

Mary reached down and spread her slippery pussy lips with both hands, revealing her frothy, cream-filled core. She tried to remember the feel of her untainted hole, resigned to the fact that it would soon become unrecognizable.

“It’s all right. I’m glad it happened this way. Now, hurry and fuck me. You don’t have to think about anything else tonight, just do what makes you feel good. Use my body to drain your fat nuts.”

Her voice was silk soaked in cunt juice. “Set yourself free, Celestia.”

A curious sound came from deep within the Princess’ pure white throat. Mary didn’t figure out what it was until the alicorn was almost on top of her, her muzzle right in her face and drool dripping onto her cheek, when the answer became disturbingly clear.

She had never heard a horse growl. She didn’t even know it was possible. Hearing a majestic specimen like Celestia make such a base sound was like seeing the Queen of England get on her knees and start barking like a dog…which wasn’t too far from the truth. But the nation she represented was the last thing on the Princess’ mind at the moment.

Looking down between her spread legs, Mary watched with pleading eyes as Celestia kissed that inhumanly wide flare to her very human cunt, starting a slow but insistent pressure. The entire length of her cock pulsed at it spurted a jet of precome into the dripping slot, merging with the creamy juices already there to form a lubricating ambrosia that leaked out around the tip, as heady as any wine. Mary couldn’t take her eyes off the unreal sight.

“Princess.” She said it more insistently as the force increased. “Princess. You’re gonna wreck my little pussy.” It was a simple statement of fact. When Celestia ignored her pleas, Mary felt something give inside her, and splashes of urine joined the frothy mixture gushing out of her cunt. “Princess!”

There was nothing left to discuss.

Celestia almost looked pained as she worked her broad tip into Mary’s narrow hole. “Fuck…all you humans are so fucking tight…let me in, little pony. Open up your pussy and take this Princess cock. You’ll take it one way or the other, so don’t fight it, just let it happen.” As she gave another hard shove she growled again, a deeper and more dangerous sound than before. “I said, open up your pussy! Open up your womb!”

Mary felt an unnatural sensation as her messy cunt stretched wider and wider, preparing to admit that big flare. She knew something was about to happen…something strange, something magical. Her wandering hands, sticky with sex juices, grasped the wide edges of Celestia’s cock tip, pulling inward with all the meager strength she could still muster in an ineffective attempt to speed things along.

“I’m trying! I know I have a tiny little twat, but I wanna take it all! I wanna be a good little fuckhole for you, but I have to…you have to fuck me up first.” She began to babble as Celestia’s thick tip worked itself into her narrow tunnel. “Oh, fuck! Oh, god, make me take it! You’re the Princess, you can do whatever you want! You can fuck whoever you want! Princess cock can break anything, so break this weak little human. You’re royalty, so fucking act like it!”

That last outburst made Celestia snort in anger. With one more determined push, she squeezed her gem-hard fucktool into Mary’s clinging cunt, making both lovers scream each other’s name as they connected themselves at last.

Celestia was panting and blowing as if she were running a marathon, working her broad hips and ass to squeeze every bit of herself into Mary’s newly elastic hole. “Mary…I never knew…so tight…so wet…what are you doing to me? Is this magic? I need more, I need…I need you…I can’t stop!”

The Princess pulled her hips back and crashed forward, plunging her massive tool deeper into Mary’s accepting cunt. She did it again, harder, faster, and then she was fucking, slamming her fat hindquarters into that silky wet pussy again and again, going deeper and deeper with each thrust.

It shouldn’t have been possible without pain. Mary should have been terrified at what Celestia’s magic was doing to her body, but there wasn’t the least hint of fear. Even as the bulge of the Princess’ impossibly thick horsecock, still spewing precome, moved past her stomach and into the space between her breasts, she trusted her partner to keep her safe, more or less. Of course, nothing was guaranteed, but the thought of Celestia doing something unspeakable to her while lost in her own pleasure only made her squeal harder.

“Look! Look, I’m taking it!” Mary screamed. “I’m a good girl, Princess! Wrap me around your cock, use me like a jizz rag! Make me remember what you did to me!”

Then, she felt it. A steady beat, right around the center of her back, pulsing rapidly with her exertion. It was regular and loud in her ears; whump-whump, whump-whump. It sounded familiar.

The space between her breasts…?

Mary looked at her chest, taking in the shattering sight of Celestia’s fat tool distorting her skin. Where her heart, lungs, and other organs should have been, there was only 18 inches of grade-A, cunt-breaking horsecock taking up far more space than was physically possible. She could feel the drumming of her racing heart in her back, just below her neck.

Magic. Sun Princess Celestia had indeed molded her body to fit her exclusive use, making her into a perfect little royal cock socket. Her organs had been shifted haphazardly, unimportant in the face of the Princess’s carnal urges. Mary knew it had to happen that way: nobody, not even ponies, could take Princess cock and live without magical flexibility. But she ignored the objections of Dr. Parvotti. Only one thing truly mattered.

“Thank you!” Mary shrieked, tears rolling down her shaking cheeks. “Thank you for making me your fuckhole! Thank you for destroying me! Thank you, Celestia! Thank you for using my sloppy cunt!”

The Princess continued to fuck. Her mouth was slathered in foam like a rabid wolf, eyes gone white in their sockets. She knew nothing except the desire to dump her load into her bitch. Mary saw that there was still a good few inches of thick cock left outside her sticky, creaming cunt, and she despaired for Celestia, seeing how much not being able to hilt herself frustrated her.

She raised her jerking arms toward Celestia’s head, touching the side of the Sun Princess’s muzzle tenderly. Her fur was so soft, more comfortable than the highest quality cashmere, and her flowing mane was a riot of color above the Princess’ straining form.

Then she grasped Celestia’s horn, tentatively stroking it with both hands. The Princess grunted in surprise, increasing the pace of her jostling ass, and as Mary caressed that white spear faster, the sound of Celestia’s pendulous balls slapping the human’s ample butt grew louder and faster.

Mary cooed like a mother as she tried to get Celestia to look at her, wondering if she still remembered the person named Mary existed, except as an incidental existence attached to a cock holster. “Princess? Come back to me. Look, look at what’s happening. You’re missing all this pleasure. Don’t just let one side of yourself have all the fun.”

She tenderly ran her fingers across the alicorn’s opened mouth, feeling her scalding hot breath on her sweat-soaked skin. Mary touched Celestia's lolling tongue, the inside of her cheek, and even the edges of her ultra-sharp teeth, and every moment of contact was full of love.

“I want you here, with me. Please, Celestia.”

The Sun Princess’s giant pumping ass slowed, then stopped. Mary felt her lover’s tongue almost timidly returning her fingertip’s caresses, and the human held her breath as Celestia blinked, her eyes returning to their original brilliant hue. The Princess looked down at Mary, and a plain look of shock was on her face. It was a true reaction from a being who made hiding her emotions into an art form, and Mary rejoiced as they once again recognized each other.

Holding Celestia’s gaze as if afraid to lose it again, Mary grasped the sides of her equine head with both hands. With the last of the strength in her tired arms, she drew that large muzzle toward her own opened mouth. Allowing herself to be led, Celestia’s long tongue snaked out, and Mary captured it between her own ravenous lips, sucking on it as if it were a delicious candy.

Mary truly felt like a horsefucker now. The two delighted in each other’s tastes and touches. Joyful ripples went though the biologist’s invaded channel, massaging the Princess’ resting cock, but Mary knew her thirsty cunt would not come yet. Not until Celestia had taken her pleasure.

They both stared at Mary’s hands as the human reached down, touching the inches of cold hard cock still left. She couldn’t even begin to reach all the way around with ten fingers, but soon that would not be a problem. As one, they looked up into each other’s eyes, shocked as they saw each other’s sex-crazed expressions, but then the moment passed, replaced with an instinct so urgent that the end of the world would not have drawn them away from each other.

At last, Mary knew Celestia’s true intentions. Putting her soft lips to the alicorn’s flicking ear, she quietly gave a very simple command, the only command she could possibly give a Sun Princess.

“Breed your little pony.”

With an incoherent roar, Celestia planted her back legs on the ground and reared up, pulling Mary along with her, still impaled on that spire of pulsing fuckmeat. Still on her hind hooves, the Princess crossed the room in an instant, slamming Mary’s back against the reinforced glass patio door leading out to the rooftop, and the human felt a loud, rattling bang that took her breath away. Celestia placed her forelegs on both sides of Mary’s head as she continued to fuck—no, to rut—and the savage motions made the vestigial wings on her back flap with an unforeseen vigor.

In the corner of her eye, Mary saw the small, winking lights of the facility outside, with only the dark, unforgiving ocean beyond.

The whole world sometimes felt dark. There was light, yes, but that could be difficult to remember in the depths of the starless void which had been her existence at various points in her life. She craved that elusive brilliance, like a junkie craved a fix, and the moments of illuminated joy had been enough to keep her going, to keep her sane.

But as Celestia grunted deeply over and over again, struggling to force her juice-slick cock the rest of the way into Mary’s changed body, the human began to realize that the meager light she was used to was like a candle against the majesty of the Sun. She no longer wished to be without the Princess’ dazzling radiance, knowing that wherever Celestia went, there also went magic, and strength, and love, and lust…so much lust, complete and total, making her misaligned heart sing.

“Don’t let me wake up from this dream,” Mary whispered as she was pounded, not knowing that Celestia’s sensitive ears easily detected her words.” “Please, don’t let me wake up. Show me your sunlight, fuck away my night. You’re a buttslut whore who can’t keep her big fucking cock out of trouble, but nobody can stop you. So show the world…ah, God, Princess…show the world your power!”

Princess Celestia’s small wings began to flap quicker, though Mary would swear that they were now bigger than before. Her massive white ass churned as her frenzy increased, occasionally revealing the puffy, wildly fluttering asshole in-between jiggling claps. Mary felt no pain, only deep pressure and increasing heat, but the bulletproof window at her back was not even close to proof against alicorn might. She heard a series of sharp splinters and cracks, and spider-web fractures spread from the glass behind their conjoined bodies.

With a final bellow of triumph, Celestia gave one more massive shove, burying all three feet of fat Princess cock deep into the holster that was Dr. Mary Parvotti. At the same time, the patio door shattered, and squared-off shards of glass swirled about both their bodies as Celestia kept fucking, stepping out into the cold night air, exposing herself to anyone that happened to look in their direction.

“I’m a cock-sleeve!” Mary screamed into the night, though it seemed to be growing lighter despite the still late hour. “I’m a cock-sleeve, I’m a cock-sleeve, I’m a cock-sleeve, I’m a…” She repeated the phrase like a mantra, feeling Celestia’s thick hips touching her own with nothing in between. Only Celestia’s mysterious power kept that massive, throbbing tool from coming out her other end.

The Princess was still on her back legs, thrusting up into the waning night, and hearing the human’s delirious confession made her balls begin to rumble ominously. She spread her pale wings, now definitely bigger and longer, proudly displaying her latest conquest wriggling on divine Princess cock as she stomped around the rooftop, crunching glass underneath her gold-shod hooves.

“She’s belongs to me!” Celestia snarled to the heavens as the sun rose above the watery horizon, acting as a fiery witness to their consummation. “This is what you wanted, little pony. This is what you asked for, so take it! Fuck, my nuts ache…but this pussy…this sticky cunt hole, it’s not fair…drink all my come, little pony. Drink it with your womb and bear my-“

She never finished. Her balls drew closer to her cock, and before she could say another word, Mary heard the creamy, splattering sound of lovely come bathing her from the inside out. Those massive nuts flexed, and her wings trembled, now large enough to cover the surface of the roof in shadow. But the sun came out, and Princess Celestia began to glow too, banishing the rest of the night’s darkness.

Mary came. She clenched upon Celestia’s spurting meat, instinctively using her orgasm to work the precious seed from those mighty balls and that pulsing shaft. Thick cream splattered at their feet, while cunt juice and urine spewed helplessly out her ruined hole and down the crack of her ass, but Celestia kept coming until Mary’s stomach was bloated enough to be mistaken for a third-trimester delivery.

And still the Princess kept coming, giving everything she had to give to Mary, just like they’d both wanted. As she was throughly bred, she watched the ecstasy on the alicorn’s face. It was similar to the look of abandon Mary had seen when she’d first walked into the suite, but…better, more vibrant. The Sun Princess Celestia’s face was filled with light, the same as her own, and even as the impossible sunrise happened behind her, everything still felt right. Like magic.

Erin was back in her own room, none the worse for wear — physically, anyway — though at the very least, she'd have some kinky flashbacks for the rest of her life. As Mary figured, Princess cock was a dangerous thing. It would change you forever, and even if the flesh forgot, the mind would not.

The window was fixed as good as new, and the skies beyond were colored gray in the Atlantic morning. Mary felt a weird sensation as she looked out into the second early dawn, as if she’d slept an entire day away.

It seemed that adjusting an accidental sunrise took much less work than repairing a human’s splintered mind, and even Sun Princess Celestia was abashed at her lack of control.

“That’s never happened before,” Celestia was saying as she rested on her back, with Mary draped across the Alicorn’s large, soft-furred barrel. The human gently ran the fingers of one hand through that luxurious pelt, while the other stroked the Princess’ beautiful cock, now soft and draped next to her, curving to the right, with the flat, spongy head next to her nose. On a whim, she kissed the coin-sized hole on that cocktip, and a light drizzle of come slowly oozed onto Celestia’s still sticky chest. Though the Princess could have magicked them clean, they both found something incredibly hot about lazing around covered in their own bodily fluids.

“Bet that’s a new sentence for you,” Mary said in a sexy voice, causing them both to laugh, though Mary was almost too tired to move her diaphragm beyond the necessities of breathing.

“Indeed,” Celestia said, still grinning. Her right hoof stroked Mary’s head as the human continued to run her lips against the tool that made her, the cock that she loved, and that loved her in return.

Celestia’s smile wavered. “But truly, I have a lot of work to do to fix what I did. Resetting the orbit of the sun is the easy part, compared to what I did to Erin. I may have gone a little overboard, little pony.”

Mary chuckled. “You didn’t even make it to the bed, did you? Did she really get you so hot you had to fuck her in the living room?”

Celestia wore that serene expression again, but now it seemed like a genuine look of peace and contentment, instead of a mask. “I didn’t know if you would show up. It was 1 in the morning, and I needed to get my rocks off. I was pretending she was you the whole time, although-“

Her spent cock shuddered and lengthened an inch, spurting a cloudy jet past Mary’s shoulder. “It wasn’t even close to the real thing.”

Mary reached up to touch Celestia’s muzzle, seeing no lie in the alicorn’s words. She tried to think of an appropriate response, before chastising herself for her own foolishness. The truth had worked so far, so there was no reason to change her approach.

“You wanted to breed me,” Mary said quietly.

For the first time since they’d met, Celestia turned away in what looked amazingly like embarrassment. Mary found this adorable, and she went on with amusement, glad to have the Sun Princess on the back-foot for once. She couldn’t imagine how rare the experience was.

“I said, ‘wanted to,’ but of course, you went ahead and did it. I mean, nobody throws around Princess cock like that unless they want a bitch well and truly knocked up. When were you going to tell me?”

Princess Celestia kept her eyes averted. “If that’s not what you want, I can-“

“Did I say that?”

Celestia turned to face Mary with a start. Fear, thankfulness and shame fought each other across her regal countenance. The biologist’s heart, now back in its proper place, almost broke at the sight.

“I think…I guess I only have one question,” Mary said. She instinctively wanted to put the Princess at ease, but she had to know. “How much of your visit is really diplomatic, and how much involves spraying your come across the planet? How much is it ever?”

It was a fair question, and Princess Celestia knew it. She replied with only a slight hesitation.

“The diplomacy is genuine. I wasn’t lying when I said how much I enjoyed meeting new species. I’m a scientist, too, in my own way, and I have just as much interest in xenobiology as anyone would in my position. It’s only a quirk of fate that I’m in a position to indulge my hobbies.”

“Lucky you,” Mary said, tapping the tip of the Princess’ cock playfully. Celestia hissed as her cock grew a bit thicker.

“Speaking of indulging." The two shared a laugh at the Princess’ hair trigger.

“I know, I know. It’s just…what you have to understand is…” She turned her eyes away again, and this time it wasn’t embarrassment in her gentle face.

Mary gripped Celestia’s muzzle and pulled her back, forcing the Sun Princess to accept her gaze. “It’s okay.”

Celestia sighed in resignation. “It’s just that…alicorn spunk isn’t nearly as potent as you might think. Maybe once in a long generation does a pony birth another alicorn, and lately not even that often. I have lots of children running around, and I love them all, but until recently none of them were like me.”

The Princess was pensive as she spoke. “I was the last. We’d almost resigned ourselves to losing my magic, when we discovered mystic portals.”

Mary nodded, following her thread. “Crossbreeding.”

“I was as surprised as anyone,” Celestia said, smiling at the memory. “The chances are still low, one in a thousand, but it might as well be guaranteed compared to what it was. And all of my little alien children become alicorns. Every single one.”

“Ugh. I hope I don’t get something bursting out of my chest.”

“Don’t worry,” Celestia said, laughing openly, sweetly. “You’ll have the best medical care on both sides of the portal, I guarantee it. But you can scream ‘Get away from her, you bitch’ while you come on my cock if that's what gets you off.” Mary tried her best not to laugh at this image, and she failed miserably.

Yet Celestia hesitated again. “You would bear my child? Knowing my motivations?”

“One hundred percent,” Mary said with conviction.

“And you’re not…weirded out, or…”

“Are you serious?” Mary said incredulously. “No. I’m not weirded out. If I can bring someone like you into the world, I’ll take Princess cock as many times as it takes. Just bend me over and do it, whenever you get the urge.”

Mary felt a low rumble deep within Princess Celestia’s barrel, and she looked on in amusement as that fat breeding tool raised and lengthened, now approaching its full size.

“Don’t make promises your sloppy cunt can’t cash,” Princess Celestia said roughly as she pawed at Mary’s body possessively.

“Try me. But I’m not talking about my pussy right now,” Mary said with a challenging glare, slurping up the leaking cream now dripping down Celestia’s fat shaft.

The Princess gave a shuddering moan. “I don’t…mmm…think it works that way.”

“Bullshit,” Mary said, continuing to lick as she pawed at her own drenched cunt. “You shoved my heart into my spine. I think you can make a pregnancy happen through my throat if you wanted. Or my ass, for that matter.

Celestia’s hips began to lurch. “Be careful,” she said with menace, not entirely playful. “I might lose it and shove my thick fuckstick right through your body.”

Mary stroked and sucked with increasing passion. “Then you can fix me,” she said, lips smacking against that massive tool. “You can do whatever you want with me. I trust you, Celestia. But we only have an hour before we need to head to the next briefing. Are you up to it?”

“Now who’s slinging bullshit?” The Princess grunted thickly as she grasped the back of Mary’s head against her hoof, drawing the biologist’s drooling mouth closer to the tip of her royal cock. They ended up reasonably prepared for the next event, but only just, and Mary found herself administering the important meeting with a belly full of alicorn spunk. She found she liked the way she looked paunched with come, imagining a very different type of bump, though she didn’t know how she’d explain her possible future pregnancy to the higher-ups. Well...they’d figure something out. Sun Princess Celestia was a deft hoof at diplomacy, after all.

Dr. Mary Parvotti never expected to be a mother, especially with a dimensional traveler’s foal. But the night was full of firsts.