The Cider Festival is being celebrated, and the entire town is invited. All the villagers are here, each with a freshly poured jug in their hooves or horns. And of course, the restrooms are visited incessantly by the jovial ponies.
Apple Bloom has also drunk a lot too, and is now desperately searching for an available restroom, but every latrine says 'occupied.' The filly feels like she can't take it anymore, but to her relief, she sees a restroom with the door open. It's made of old wood, located in a dark corner and separated from the party. Normally, she would avoid it; however, right now she sees it as the last apple in the sack.
She runs as fast as her little legs can carry her, leaving a trail of dust behind. She rushes in, trampling, without noticing the sign on the door that says Out of service. She lifts the lid of the toilet, but before she can sit down, a steed dashes into the restroom unannounced, slamming the door behind him.
The filly and the steed look into each other's eyes for a moment, until their brains process what has happened.
"Oh, I'm sorry," says the embarrassed unicorn. "I really didn't mean to, and the door was open.
In her haste, the little filly had forgotten to close the door and hang the sign that says occupied.
"I'll wait outside."
The unicorn turns around and tries to move the handle... but the door doesn't open. The archaic artifact broke with the last slam of the door.
"Apples!" exclaims the filly. "Hurry up, mister. I can't take it anymore."
"I can't get out..." Worried, he tries to push the door several times without success. "We're trapped!"
"Try pushing harder. I don’t know, use magic or something!"
"I'm not very good at levitating small things," says the unicorn, wiggling the knob. "Much less at repairing things. Is it really urgent?"
"Yep!" replied the little mare, drumming her hind legs on the restroom floor. "Uh-uh! Apples, apples, apples—I'm not going to pee with you in here, mister!"
The unicorn notices a small decorative heart-shaped hole in the door above his head. It occurs to him that somepony might be able to open the door from the outside.
"Is anypony out there!? This door won't open!" he shouts with his snout as close as he can to the hole. But nobody answers.
Without warning, the filly climbs onto the unicorn's rump, using the wooden toilet as a step.
"Open up... somepony, help us!" she shouts, with her small snout peeking through the hole.
The filly takes a deep breath.
"Someponyyyy!" she exclaims loudly, releasing some of her urine.
"Oh no, it can't be! "She says, while her face turns the color of a tomato as she jumps off the stallion's back. "I'm very, very sorry mister."
The steed turns like a statue, not saying a word. His eyes narrow as he restrains himself from speaking to the embarrassed filly. A trickle of pee runs down his shoulder and onto his chest as he mutters in a barely audible voice.
"Just urine, it's just urine, just urine, nothing more..." the steed repeats to himself, trying to maintain his composure.
It is an old latrine; the light that filters through the gaps in the boards is barely enough to reveal how small the enclosure is. Between the beams of light, the suspended dust can be seen. The creaking sound of the floor is drowned out by the background noise of the marching band and the bustle of conversations. The three walls, made of old wood, are the same size as the door, forming a perfect rectangle.
The filly slowly sits down on the toilet, lowers her head, and covers her face with her hooves while leaning on them. Her urge to urinate is lessened, not just because of the release of the small stream, but mostly due to her shame. She thinks: This here mister's gotta be right mad at me, I just peed all over him. What’m I gonna do when Applejack finds out? I’m sure they’ll all tell me I’m still just a little filly. This just ain’t fair! I only wanted to drink as much cider as anypony else.
The cider festival is bustling and cheerfully noisy. The sounds of the band fill the entire town, with the double bass, violin, and banjo echoing through every corner. Those who can, dance; and those who cannot, jump in a single line to the rhythm of the music. And the other ponies gather around on huge tables, chatting, and one or another argue heatedly and unnecessarily about the drink.
Little by little, they get used to the darkness while gradually forgetting the noise of the fair. Between the worm-eaten planks, the lights of the party in the distance can be seen, making them feel ignored by the other ponies.
With his slightly damp chest, the unicorn does not say a word. He seems uncomfortable with the limited space; his haunches touch the door, and there's barely enough space between his chest and the latrine for even an apple. His fur gives off a vapor with a peculiar smell of urine. In front of him, the filly sitting on the toilet lid; doesn't say a word either.
All she can see is the oddly inert steed, staring over her head with a red face that also appears anxious. The build up of awkward silence is interrupted by the filly's urge to pee.
"Ah’m sorry, mister. Ah know y’all’re mad ‘n all, but Ah cain’t pee with ya watchin’ me."
But the stallion ignored the little filly's urgent plea.
“Turn 'round!” “Turn 'round!” says the little filly loudly, letting out a small amount of urine.
The stallion inhales deeply, taking in the scent of the latrine. His expression resembles someone who has just smelled a bouquet of flowers. Then a worried expression overtakes him as he turns around, just as she demanded.
The filly is amazed by what appears in front of her. A member almost as long as her height, with a slime about to drip from its tip. A pair of apple size testicles near her forehead. The genitals of a stallion were something strange for a filly from an upright family like Applebloom; or at least, not from this distance. The filly asked a few weeks ago to her older sister: Why ars brother's twisty balloon sum-tymes git bigger when he talks to Misses Sheerilee? The honest sister wouldn't lie to her, but she wouldn't say more than necessary either. When a stallion wants tuh marry a mare, that’s how they tell ’er. The composed and mature mare replied, wishing her sister had never brought it up.
The filly's eyes dilate as she becomes fascinated with the idea that a steed would desire to marry her. Duhs this stallion likes me?, the little filly wonders, forgetting for a moment about her urge to urinate. Ah’m the on-lee round. He's seems big, but ah’m gonna grow… sumday... Applebloom leans in to get a better look at the stallion’s face: she observes him blushing, pursing his lips and breathing deeply. He is very handsome, thinks the filly.
"Um... Sir, Umh, that thaing between ya´ll legs” the young mare asks, holding her cheeks, covering her eyes. "Ah’m gonna marry you?"
When the stallion hears the filly, his member shudders: it hits his belly producing a slapping sound, depositing the slime that had been accumulating at the tip of the fur.
"I like your pee..." He says without thinking. “Wait, wait. No no. What I meant was," he taps his forehead with his hoof and coughs fakely. “I mean, what I mean is that anypony would like a filly as pretty as you,” He expresses to the innocent filly, trying to patch up such an aberration. "Don't mind me, I'm a little nervous. "Pretend I’m not here and do your thing,” he adds, embarrassed, while discreetly glancing at her from the corner of his eye."
Meanwhile, outside the latrine, all the ponies are enjoying the drinking festival. Although barrel after barrel has been consumed, all the ponies remain sober. Even the fillies and colts enjoy themselves, thanks to the lack of alcohol in the cider; however, there is one pegasus who doesn’t need to be drunk to be clumsy. Everyone knows her.
Now the unicorn finds himself in a big problem, and it’s not related to his own urge to urinate. The stallion’s mind is filled with voices, asking questions and making suggestions: Should I tell her?, he wonders. I could help her... no! But… I want more.
When she's gone I'll lick it from the floor, while it's still hot, he decides, in his mind.
At that moment Applebloom feels something she has never experienced before. A strange feeling towards the stallion, without understanding her own reasons. Her urge to urinate is lesser, because her mind is occupied by a sensation that overshadows it. He could be ma´h special pony? Applebloom wonders, as she indulges in a romantic fantasy. She relaxes, beginning to release a stream of urine, which gradually becomes copious. A question comes to her mind and comes out of her mouth accidentally,
"duhz he laks mah pee?” she asks to herself in an almost inaudible voice.
An overwhelming feeling strikes the poor unicorn... The golden thread she pours reminds him of a pleasant summer day with a refreshing apple cider vinegar tea. The stallion abandons his decency and thinks: To hell with it! He takes a cheeky look at her, and finds her peeing with her eyes closed, cheeks flushed and a dreamy expression, as she pours the sweet golden liquid that comes from heaven and finds the earth. The poor steed would never have thought he'd want to be a toilet seat. He is fighting the urge to lift the innocent filly into the air with his magic, and bask in the warmth of her fluids.
Crash! A roar, accompanied by a violent shake, hits the latrine cabin. The latrine tilts, due to an accident; caused by the infamous Derpy Hooves. She crashes hard, knocking down the cabin and those inside. The unicorn and filly float in the air as the wooden enclosure heads toward the ground. However, for the unicorn every split second of this moment it's drowning him in euphoria.
One dune, ten, a hundred, a thousand dunes and a single sun.
The unicorn walks on sand that wants to toast his hooves.
His pupils fight to stop the needles of light that the sun throws at his eyes.
No hat or a cape, no shoes. His only possession is a bottle of honey.
Although the wind irritates him and his legs hurt, his only desire is to quench his thirst.
Spot a silhouette in the distance. This transforms into an ugly mare carrying a pot.
She raises the container on her chest, to give the needy unicorn a drink.
He drops to his knees, letting the liquid enter his mouth... He spits the liquid onto the floor.
He watches in confusion as she drinks contentedly from the same container. It's vinegar.
He keeps his eyes on the ground as he walks, trying to soothe his irritated eyes.
Suddenly as if a wall crashed into him, he is pushed into the burning sand.
He raises his head and looks at a large stallion, who hands him a bottle.
He grabs it by the neck and puts the finish in his mouth. An inconsequential sweet, it's molasses.
He swallowed hesitantly. And continue to walk, leaving the stallion behind as if nothing had happened.
With each step he takes he feels that he is going slower, as if he had stopped.
A young pegasus appears next to him, hanging a pot on her hooves as she flies.
In the air, gently tilt the container to his lips to give him a drink.
He thinks his mouth is so dry that it's burning. But it was rum.
He swallowed the liquor, grimacing. He thanked her and continued wandering through the sand.
Step after step, sun after moon, path but found nothing.
He stops to see where he was going, but he only sees sand, he turns his gaze and sees the same thing.
His feet succumb to the heat, crumbling like dry, light bread.
On the floor, he sees the bottle of honey; and on its reflection he sees his face like eroded earth.
A piece of his head also crumbles, forcing him to look at the bright sky.
He sees a little angel flying, carrying a pot. That's how he knew it was his end.
It flew over him without noticing him, but accidentally drop the pot in the air.
The liquid comes out of the container turning into rain, spraying the entire desert.
His feet healed on their own when moistened by the divine liquid.
The burning in his skin and eyes disappears when his face is hydrated.
For every drop that reaches the sand, a plant grows. Turning the desert into a meadow.
The unicorn opened his mouth, letting its thirst quench with the wonderful liquid.
He is overwhelmed with joy, his eyes well up with tears, and his face overflows with happiness.
The angel, with the appearance of a filly, goes down and recovers the container that she dropped.
He prostrates himself before the angelic filly. The unicorn thanks her by kissing and caressing her hooves.
He alone has no more to offer than his bottle of honey and his eternal gratitude.
He prostrates his face on the ground and raises the honey, begging her to accept his poor offering.
The unicorn is lying on his back, with a silly expression of satisfaction. His entire body is damp with the filly's fluids. As he enjoys the charm of her well-soaked chest and face, he realizes that he has just desecrated the buttocks of the little filly, who lies on top of him. He feels invaded by a feeling of guilt for having done something so obscene, but without intention, to an innocent creature; Although, a part of him doesn't regret anything.
The filly looks into the unicorn's eyes, and he perceives her blushing and calm, as if she had woken up from a good night. The unicorn had never witnessed anything as sweet as her. Within his heart, his lust was transformed into love; one that he knows well she will never repay, especially in the way he desires.
The filly returns from her thoughts and tells him in a false and rigid voice: “Ah'm so sorry, it was just an accident,” but in her mind she meant something else.
“I'm sorry you little one, but your pee makes me the happiest unicorn in all of Equestria.”
She smiles and her sleepy face returns to her. She releases the last splash of urine that had left, on the steed's lips, and asks: “So you do want to be, my forever special pony?”
“I'll wait as many years as necessary”
END
Author's Note
Hello there! (robotic voice in the background —General Kenobi).
Be aware, I do not write on english. So, if some words sounds unusual or inadequate, plis let me know. About the elephant in the room, that's just a watersports-foalcon story, yes, its not my thing. But a joke led to some improvise story in some chat. And now here i am. Hope somebody likes it. Cheers unholy liquids
This fan fic contains: omorashi, water sports, urophilia... Its about pee. Weird?, yes. But hey, this is mlp fandom what do you expect. 
Why is this in the comedy section? Well my friend, idk you, but i laughed a lot writing this.
Besides of all that i did the best i could. Hopefully somebody will enjoy it.
