Seapony Anatomy

by Jest

Rating: mature
Tags: My Little Pony: Friendship is Magic, Romance, Porn, Fetish, Princess Skystar, Pinkie Pie, Sex
Length: 3902

Pinkie Pie knows nothing of seapony anatomy, thankfully her girlfriend, princess Skystar, is there to teach her everything she knows.

Pinkie Pie knows nothing of seapony anatomy, thankfully her girlfriend, princess Skystar, is there to teach her everything she knows.

A Plus One Sequel. Previous story not neccessary. Done as a suggestion for a patron!

Kinks seapony fuckin, stomach bulge, herm on female, impregnation, cum inflation

Published 2019-03-25 03:10:01 UTC
Last updated 2019-03-25 03:10:01 UTC

Date Night

“Whoowee that was something else Skystar!” Pinkie Pie exclaimed, half leaning half floating next to the wall, her fin wiping the non existent sweat from her brow.

“I’m glad you were able to join me back in Seaquestria.” Skystar remarked happily, hugging herself excitedly while doing a little spin. “It's meant the world to me.”

Pinkie Pie giggled, a blush crossing her cheeks. “You know I couldn't say no to turning back into Fishy Pie!”

Skystar giggled as well, pulling Pinkie Pie into a sidelong hug. “Well either way I’m happy I was able to show you my hometown this time.”

“Which was awesome!” Pinkie Pie exclaimed, squeezing Skystar back and spinning them in a circle. “I can't believe we missed so much the first time we came through Seaquestria.”

“You guys were on a quest to save the world.” Skystar shrugged. “Plus it's not like we could sea much during that montage.”

“True.” Pinkie Pie released her girlfriend only to giggle hysterically all of a sudden. “Oh I get it, sea, see! Your a punny one.”

The seapony blinked, only now realizing what she did. “I think you must be rubbing off on my Pinkie Pie.”

The transformed pony wiggled in close to the seapony, smirking slyly. “Not yet I haven't.”

Skystar gulped all of a sudden, turning to the door of their room and opening it wide. “Anyway, here is my apartment slash room away from my mother. It's all ours for the night.”

Pinkie Pie shrugged, and made a beeline into the apartment, stopping and gaping at all the strange and exotic ocean iconography that filled every nook and cranny. Yet other then the fact that seashells and other ocean images filled every inch of the room it seemed remarkably normal. There was a chest of drawers next to the door, a large bed in the centre of the room, and even a window that overlooked the town square.

A window that now currently had a Pinkie Pie plastered to it. “Oooh neat.”

“So uh, what did you think of the date?” Princess Skystar asked rather timidly. “I haven't actually gone out on one down here before.”

Pinkie Pie blinked. “Wait, does that mean I was your first date date in Seaquestria?”

Skystar nodded weakly. “The other seaponies thought I was weird, but your different.”

“I’m weird too!” Pinkie Pie announced with a giggle, sweeping up Skystar in her hooves and holding her tight. “And don't worry your pretty little noggin about the date. I loved every last rootin tootin second!”

“R-really?” Skystar stuttered, blushing profusely.

“Totally!” Pinkie Pie yelled. “In fact, this entire week has been amazing! I can't thank you enough for inviting me down to your home town!”

The sea pony’s face lost the blush that colored it and was slowly replaced by a wide, confident smile. “You don't need to thank me Pinkie Pie. I’m just glad we could work past all the awkwardness of our first date and stuff.” Skystar’s confidence seemed to wane and she tapped her forelimbs together awkwardly.

Pinkie Pie squeezed her girlfriend tighter before reluctantly pulling back and shooting her a kind yet disdainful gaze. “How many times do I gotta tell you to lighten up? It's fine, Skystar, really!”

“I know but-” Skystar began, only to be interrupted by Pinkie Pie.

“No buts!” She yelled. “Unless your going to grab my butt, in which case, butts are allowed and encouraged.”

Princess Skystar blinked several times, her smile growing wider by the second until it encompassed her entire face. “Thanks Pinkie Pie.”

“And quit thanking me!” Pinkie Pie added with a smirk. “Now you better snuggle me right now missy.”

“Yes ma’am!” Skystar yelled back, snapping off a salute before diving into the transformed earth pony and making them both tumble into the bed in the centre of the room.

In seconds the two creatures were a cuddly pile of adorableness, with their limbs intertwined, princess Skystar’s chin resting in the crook of Pinkie Pie’s neck, a content smile on her lips. The transformed earth pony seemed equally as content, a large smile on her own face as she held Skystar close, their tails intertwining and their fins brushing against one another.

“This is nice.” Pinkie Pie whispered.

“Very.” Skystar replied.

After a few moments of silence, Pinkie Pie started to wiggle her way out of the grip, and spun around the large sea pony, gripping her around the midsection while nibbling at her neck. Skystar, initially a little put off by the sudden shift, began to blush as the pink party pony moved lower by the second.

“Ooh. Thats nice.” She whispered as Pinkie Pie got low enough to really start working away at the tender part of her neck.

Pinkie Pie grinned and continued to kiss and nibble at the sea pony’s neck, her fin trailing down her girlfriend’s chest until suddenly the princesses’ eyes went wide and she grabbed the pink mare’s limb. “Wait, you can't do that.”

“Why not?” Pinkie Pie asked, while pouting profusely. “We did it all the time on the surface but you keep saying no down here.”

“It's just, sea pony anatomy is a little weird…” Princess Skystar muttered while rubbing the back of her neck. “It's not like when we are both on land.”

“What do you mean? Do you not have a vajay jay?” Pinkie Pie asked while giggling.

The princess groaned. “It's just… weird okay? I really don't want to freak you out is all.”

The party pony scoffed, rolling her eyes. “Babe, you cannot surprise this pony, I’m unsurpriseable. Besides, it can't be as weird as how changelings and dragons fuck and I’ve seen that!”

Skystar blinked, pulling back and twisting around, allowing her to look the pony in the eye. “Since when did you see that?”

Pinkie shrugged. “Thorax and Spike aren't exactly subtle when they do it.”

“I…” Skystar slammed her mouth shut, realization dawning on her. “So that's why they were always off doing their own thing!”

“Enough about Spike and Thorax’s weird sex life, let's get to OUR weird sex life!” Pinkie Pie exclaimed, licking her lips and her hoof resuming it's slow crawl down Skystar’s chest.

“Wait, Pinkie. It's really weird just trust me on this on.” Skystar repeated.

PInkie raised an eyebrow. “Babe, I promise not to get weirded out, it's really not a big deal.”

“Are you sure?” Skystar asked weakly, her resolution crumbling under the weight of a sexy, sexy Pinkie Pie giving her the lustiest of stares.

“Absopositively!” She announced happily. “I promise not to freak out one iota and if you have to give me a lesson on sea pony anatomy, then so be it! I will try not to fall asleep like I did the last time I took an anatomy class.”

Princess Skystar giggled and rolled her eyes. “Okay but don't say I didn't warn you…”

“Trust me babe, nothing could weird me out after everything I’ve been through and-...” Pinkie Pie began, only to stop and stare, her gaze drawn down to the other creature’s lower torso.

Where a nearly two footlong glowing teal ovipositor had sprouted out of Skystar’s body and was now wiggling around in the water, as if seeking something. “I am a hermaphrodite.” Skystar began in a low tone borne of embarrassment. “As a royal sea pony my gender changes based on my mate.”

“Like a clown fish?” Pinkie Pie asked while staring intently at the ovipositor as it continued to wiggle this way and that.

Skystar blushed a little harder, holding Pinkie Pie’s inquisitive fin at bay. “Sort of. We lay eggs inside our partner, and then the egg combines our genes.”

Pinkie Pie continued to stare at the long, writhing length of ovipositor that was roughly as thick as a normal cock, but easily dwarfed it in sheer length. As she continued to stare, princess Skystar grew increasingly confused and worried, her mind conjuring up images of all the potential catastrophic possibilities that may come from her impromptu anatomy lesson.

“Score!” Pinkie yelled while pumping a hoof in the air.

“W-what?” Skystar muttered in confusion.

“I said, score.” Pinkie Pie repeated in a lower tone. “As in, a yell borne of excitement and anticipation.”

“I know what the saying is but, are you sure about this Pinkie? Don't you think it's weird?” Skystar asked, slowly receding back into her nervous shell.

“Nah.” Pinkie remarked with a shrug. “I mean it's different, but not that different, besides, the length isn't that intimidating since well, I got more depth now that I’m a fish.”

“Sea pony.” Skystar corrected.

“Exactly.” Pinkie Pie replied.

“And when did you have time to…” Skystar blushed. “Oh my gosh your okay with this!”

“Totally, girl friend!” Pinkie Pie announced excitedly, twisting around the other female’s body and smirking. “Now are we gonna do this thing or what?”

“I mean, yeah if you want to but be aware that it feels kinda freaky since it can move around inside of you.” Skystar replied.

Pinkie shrugged. “Sounds more sexy then weird.” The pink female’s eyes suddenly lit up and she clapped a fin against her head. “Oh my gosh I just realized we are under water! Think of all the crazy positions we could try!”

Skystar gasped as well. “I never even thought about it like that but yeah!”

Pinkie uncoiled from her partner and flashed her a smirk. “Well then, stud. What position are you going to take me in first?”

“I was thinking of reverse agua man going into a full fishmonger and ending with a three eighty back twist.” Skystar leaned in, biting her lip. “How does that sound.”

“I have no idea what any of those things mean but I love it!” Pinkie Pie yelled excitedly.

“Don't worry, I will teach you all about it.” Skystar replied, leaning even closer and pressing her lips against Pinkie’s.

The other female eagerly reciprocated this action, pressing herself against Skystar’s body and slipping her tongue into her mouth. An action that prompted a long make out session that saw them go back and forth, their tongues intertwining and separating, teasing and touching each other over and over. The two playful females loved this little game of chicken, as they knew they were just holding off the inevitable, and trying to get the other to make the next move.

Pinkie was an expert kisser, constantly pressing forward, getting Skystar into the moment, and building the heat before pulling back and teasing the other creature with short kisses that left her wanting more. Princess Skystar tried to play the same game, but she found that Pinkie Pie was simply a better kisser, even underwater despite the fact that Skystar had leagues more experience in this regard. She didn't mind as even though Pinkie Pie was the better kisser she was also quite insatiable, every tease serving as a double edged sword that served to make the transformed pony even more hot and bothered then Skystar was.

Sure enough, after Skystar chased her across the room, her body burning hot and her lust reaching a fever pitch, Pinkie Pie couldn't resist the siren song of carnal pleasure any longer and placed a forelimb on her partner’s chest. “Uncle!” She cried. “You win this round Skybaby.”

Skystar giggled, rubbing her nose against Pinkie’s. “Your so predictable Pinkie Pie.”

Pinkie Frowned, and crossed her forelimbs over her chest. “It's not my fault your so hot. Now, how do we do this, do you want a blowjob first or?”

“No need.” Skystar remarked, shaking her head. “I’m about as ready as I can be, plus blowjobs don't feel as good underwater, or at least, that's what I’ve been told.”

“You naughty thing you.” Pinkie Pie giggled. “Your the expert, I’ll let you take the lead.”

“As you command princess Pinkie of Equestria.” Skystar replied with a salute.

The pair giggled as Skystar’s forelimbs gripped Pinkie’s torso and held it tightly in her grasp. Next she aligned her hips with her partner’s her ovipositor wiggling into position just outside Pinkie Pie’s hole. “This is where the fun begins.” Skystar announced before thrusting her hips forward.

“Holy quacamole.” Pinkie Pie muttered in disbelief, shocked by just how good it felt to have the strange, wriggling appendage pushed deep inside her with little ceremony or teasing.

The fact that they were underwater eliminated any need for lubricant, and add to that the fact that Skystar had a considerable amount of strength behind her thrust and it was no surprise that the sea pony had managed to insert over half of her ovipositor into Pinkie Pie in a single thrust. Together the two creatures paused and gave voice to their pleasure, both moaning as they shuddered in unison, both equally surprised by just how good it felt.

Pinkie Pie would have expected more feelings of strangeness to dull the pleasure, but where she assumed there was a lul, there was a roar. She held her partner tight, her body quaking as it was overcome with strange new sensations that were so very different from what it normally felt to have sex. Pinkie Pie would later describe it as having a long, wormy dick up her cooch. Words that were as apt as they were crude.

Princess Skystar was only slightly more poetic then her pink partner, and she would later describe the feeling as having a moist vice clamped down around her ovipositor. She was at least a little more prepared for how it felt, though she too was got unaware by just how good it felt. Though the two creatures had fucked, and fucked quite a bit, that had always been on dry land, where Skystar had regular parts that more or less matched Pinkie’s. Here, in her home, everything was different, and she felt an alien desire to pursue, to dominate, and to plant her eggs deep in her partner’s body.

Gripping Pinkie Pie tightly she pulled out a few inches before pumping her tail and thrusting right back inside. This repeated several times, until Pinkie Pie was a squirming mass of barely contained moans and adorable wiggles. The pleasure she felt was so new, so strange, that the party pony felt as though she was experiencing her very first time all over again.

Strange though it may be, she refused to be a bystander for long, and just as she felt over half of Skystar’s slippery appendage slide inside her, she acted. Pinkie threw her body down to meet Skystar’s thrust, her forelimbs holding her partner as tightly as she in turn held Pinkie back. Their gazes locked, their smiles grew, and the two females knew the game was on.

A competitive spirit that neither really experienced very often suddenly sparked inside the two creatures and they threw themselves into the act with renewed fervor. Bodies met, moans were uttered, and muscles flexed. The ensuing thrust and counter thrust making their love making appear more like two creatures attempting to chest bump the other in the world’s strangest fight rather then two loving beings engaging in passionate sex.

This frantic pace saw the ovipositor plunged deep, hard and fast into Pinkie Pie’s body, the entire thing bottoming out in a matter of moments. Both parties shuddered in pleasure, their grip on their partner tightening as they rode out the waves of pleasure that assaulted them. Though they were as close as could be, their bodies pressed against one another, Pinkie PIe knew her partner had a little more length left to give. She also knew that would change when Skystar was ready.

“Stars above, your so big.” Pinkie Pie whispered, a forelimb brushing across the bulge on her midsection.

Skystar smirked. “I know, and you love it, don't you my little pony slut?”

Pinkie Pie’s eyes went wide and she blushed hard, barely able to contain her excitement. “I love every second of it my princess.”

Skystar giggled, her ovipositor shifting around inside Pinkie, pressing her buttons and eeking out a few more adorable moans of pleasure. “Are you ready to receive my love, my love?”

“I would love that, my love.” Pinkie replied, biting her lip.

Without warning, Skystar thrust forward, her ovipositor twisting and writhing from base to tip. Pinkie Pie let out a shrill cry of pleasure, having instantly fallen in love with the sensation of having every last inch of her pussy filled and pleasured in such an alien way. It felt as though her partner’s slippery appendage was alive, and had a mind of it's own, an odd thought, though not for Pinkie Pie.

Skystar rocked her body back and forth as she did this, sliding a little of her length from Pinkie’s hole before pushing it right back inside. Over and over she repeated this process, her entire body being put to the task of reducing Pinkie Pie to a quivering mass of pleasure filled pony. This didn't take long though, and Pinkie Pie floated there, her body spasming as she came unexpectedly, unable to even mutter a word in edgewise before she felt her pussy begin to spasm.

“Oh my gosh.” PInkie repeated over and over, her forelimbs clinging tightly to Skystar’s body as if she were the last life preserver in an ocean of lust.

Skystar giggled, slowing her movements and stopping the twisting, writhing motion her ovipositor was making as she waited for her girlfriend’s orgasm to end. “Having fun Pinkie Pie?” She asked, prodding the pink creature’s side as she did.

“So fucking much.” Pinkie remarked, the last of her orgasm beginning to peter out.

“Good, because I have so much more planned for you. Oh and you better get ready, because I’m going to quiz you on this later.” Skystar remarked with a giggle.

A laugh that Pinkie eagerly matched. “You can count on me Skybaby. By the end of tonight I’ll be a seapony anatomy expert!”

“And don't worry if you don't get it right the first time. Something tells me we are going to be back here many, many more times in the future.” Skystar whispered, pulling her girlfriend close.

“And thus concludes our-” Skystar stopped suddenly, grunting in pleasure as she pounded her appenage deep into Pinkie Pie’s dripping cunt. “-lesson on seapony procreation.”

“Whoowee zowee.” Pinkie Pie muttered, eyes rolling around in her head as another orgasm finally began to die. “I can't believe you could impregnate like any creature.”

Skystar grunted, gripping Pinkie Pie’s lower torso and continuing to pound the pink creature into the bed, forcing her face deeper and deeper into the pillow. “Oh yeah. I could even knock you up. If you wanted that.”

“C-could you?” Pinkie Pie stuttered, barely able to keep herself from getting plowed further into the headboard.

“I could.” Skystar smirked as she shifted her weight back and forth, sliding in and out of Pinkie Pie’s pussy.

“You should.”

“I should?” Skystar asked.

“I mean, we've been dating for awhile, and I’m totally ready if you are.” Pinkie replied.

“I never really thought about it before but isn't this a little too random?”

“For us?” Pinkie Pie replied, glancing over her shoulder with a smirk.

“Good point.” Skystar concluded.

“So are you going to give it to me, or am I going to have to beg for it?”

“Do you even have to ask?” Skystar replied with a wink.

Pinkie Pie giggled, before pressing a hoof against her chest and suppressing the urge to laugh. After one last deep breath, she shuddered and pressed herself back against Skystar’s slow, deep thrusts. “Please princess Skystar, give this unworthy party pony all your love.” She whispered in a low, husky tone. “I need your eggs inside me, I need to feel full.”

“Do you now?” Skystar shot back, desperately clinging to the confident, serious tone of voice and nearly failing.

“Oh yes. I need it so bad that I don't even know what I would if I didn't get it. My entire body cries out for your babies.” PInkie Pie whispered, moaning lewdly and stretching her body out along the bed as much as possible. “Give it to me please, I need it so badly.”

Skystar grunted as she continued to rock her body back and forth, her ovipositor continuing it's writhing motion. “Very well consort Pinkie Pie, I think you've earned this much at least.”

“Oh thank you princess!” Pinkie Pie cried out. “Give it to me!”

Skystar wanted to continue their little roleplay, but her orgasm was coming close, and this time she knew there was something heavy coming, as she had felt her body get ready to release the eggs she had stored for just such a moment as this. With one last titanic cry of lust, she threw herself forward, plunging her shaft deep and spreading wide Pinkie Pie’s womb. Once inside, the royal seapony’s cock split open, allowing a jet of lubricant, water and eggs to explode into Pinkie’s womb.

Together the two creatures cried out in unison, unable to contain their lustful sounds to the whispered moans as they had over the last several hours. The sound of their pleasure echoed throughout the room and no doubt well beyond their quarters, alerting any who did not already know of their illicit encounter. Their bodies twitched, their minds reeled and together they came harder then either had in their entire life.

When finally even that explosive set of orgasms began to slowly fade and die, they floated there, both breathing hard, realizing the depth of what they had just done. “The seapony and her mate will remain in this position for up to an hour to ensure that the eggs are properly fertilized and attached to her mate’s womb.” Skystar dictated while panting.

Pinkie Pie blinked. “Wait, you said eggs right? How many are we talking about here?”

“I suppose they were kind of small, I wouldn't expect you to feel every single one.” Skystar shrugged. “I’m not really sure myself but a seapony can have a litter or clutch of up to ten at one time.”

PInkie Pie turned her head and looked at Skystar in confused wonder. “Ten?”

“Yup!” Skystar blanched suddenly. “Is that bad.”

“No, no.” PInkie Pie reassured. “I just realized I probably should have been paying attention in anatomy class.”

The two looked at one another for a moment before exploding into laughter. As realization settled in, both creatures knew they were in for something wildly different, an adventure the likes of which they had never anticipated, but would ultimately, never regret.

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This update was made possible by the wonderful support of:
Kali, Craig, Ozzy, Robert, Quill, JPMK, Tommy, Ivar, Mikhaila, Pacsik, Matt, Brendan, Peter, Nicky, Princess Pudding, Nofreedom, T Sparkle, Apollyon, Luckyfanisaac, Azin, Zairvin, Random_Reader, Iamunkown, Facinus, M, Nfreak, Doomgooey, Michael, Ceepert, Diokyo, Starless