Your hands shook with excitement, the briefcase you are holding did its best to mimic a magic eight ball. Your feelings are justified though, after all it's not everyday you get to visit a foreign world. Especially a foreign world filled with talking ponies capable of magic or flight, some both, like the one you are meant to be meeting today. You have a very important diplomatic mission that could help secure the future of your home's flailing steel industry. You, Lucas Lindon were here to secure a lucrative contract allowing your country to import steel as well as setting alliances between the two worlds as strong as the material he was trying to create a trade agreement for.
The gateway to Equestria is heavily filtered, only those on matters of diplomacy may enter, as such the number of Humans in this world was extremely low. You wonder if this was what the astronauts felt, being one of the first and only of your kind to set foot in a place, a world.
"Please hold still for a moment while we check for any banned substance" You look downward toward where the noise came from to find a pony with a white colouration wearing golden armour. You see the pointed cone shaped object on its head light up and you feel a cool yet comfortable sensation run through your body
"Thankyou for your co-operation sir." Spoke the same pony "My name is Private Spit Shine of Celestia's royal guard, and I'm here to escort you to the castle in Canterlot, where the Princess is waiting for you"
After taking a moment to stifle your laughter at the unfortunate name given to the Private, you finally register his last words. Your going to meet a princess? Awesome!
Walking along the pathway to Canterlot castle you learn two things; one, guard ponies are NOT the talkative kind. Secondly, ponies are definitely not used to seeing humans walking the streets of Canterlot. You can feel the stares burn holes in the back of your head, if it wasn't bad enough that you were an alien creature to them, it also didn't help that you were a good two feet taller then them as well. After an uncomfortable walk through the sea of pony eyes you catch the first glimpse of Canterlot castle. Built into the mountainside the spiralling towers reach through the clouds and you figure that they must be held up by some sort of magic. At this realisation you start having second thoughts about trying to sell them building supplies that by this indication, they don't need.
The walking silence is broken by your guard companion
"I have instructions to bring you to the day courtroom, so if you'll follow me just a bit further"
As the pony walks ahead of you, you notice that Private Spit Shine is definitely a male of his species if what hangs between his legs is any indication. You can feel the blood rushing to your face but no matter what you do, you cant look away from the bouncing fruits moving with every small movement of the pony's hips. You force yourself to look forward while you make your way to the court. Your mind wanders back to the incident 'if none of these ponies wear clothes, then what about the females?', with that thought your face returns to its previous tomato red, something you think that will be happening a lot during your stay.
Your internal monologue is shattered with the loud echoing knocks the guard at your side just sent through the large double door.
"You may enter" comes a voice which can only be described as 'audible silk'
The guard gestures you to go onward, you hesitantly open the large doors to see a large white unicorn with wings sitting on a decorated throne in the middle of the chamber. She looks positively radiant, almost as if the sun itself was sitting on that chair.
"Oh, is that the time already? I'm sorry gentlecolts I'm afraid we will have to resume another time" Says the Pony, failing to conceal a large grin.
For the first time since entering the room you manage to pull your eyes away from the princesses stunning form in order to confirm that. yes, there were other ponies in the room with them. As said ponies filed from the court, you resumed watching the white pony from across the room. Soon you are the only two in the room, even your guard friend has slinked away.
"Welcome to Canterlot castle, my name is Princess Celestia, and your name is?
Your fried brain finally registers that the goddess has asked you a question, so your brain spews the first thing you can think of to your lips.
"SUN!" you cringe, realising what you just said and that now the princess must know just where your eyes were attached to.
Celestia looks taken aback for a moment while she processes what just happened, thankfully she has the tact to continue.
"Yes, well I guess the walk may have taken more out of you than I first thought, let me get you situated with where you'll be sleeping"
Five minutes later and three flights of stairs and your now sitting in a very comfortable bed, its almost as if the bedding was washed in clouds their so soft. Before you drifted off for a nap, you replayed what was to happen later, the princess would pick you up at 7pm for dinner to discuss the trade agreement.
Wait that's not right, she never mentioned the trade agreement.
You woke with a start to loud rapping on the door to your bedroom, you looked over to the clock to see it was quarter past 7. Shit! you're late. You quickly put on your pants and dress shirt and barrel out of your door... straight into the princess knocking her over and landing on top of her in the process. You both lift your heads at the same time and bump nose to muzzle, you see the starts of a blush enter here pristinely white cheeks, meanwhile your face feels like it just swallowed a few thousand peppers.
"Uhm, good evening, I was just coming to pick you up for dinner" Celestia began "So, uhh we should go do that"
You nod in agreement and walk side by side toward the dining hall. It starts as a Cheshire cat like grin but soon becomes audible. 'is the princess giggling?' your thoughts are confirmed when the princess lets loose a cackle of laughter, you cant help but start laughing along with her all the way into the dining area.
"Sister, tis the meaning of this?, twas to be a serious discussion of infrastructure and alliances" you turn to look at where the voice came from to notice a dark blue unicorn with wings, from what you caught of her tongue you are certain this is Celestia's sister.
"Oh Hush, Lulu" speaks Celestia. At those words you think you might have competition for the worlds hottest cheeks, you didn't know red could be so vibrant through dark blue. The food arrives, looks like some sort of avocado. The three of you dig in to your meals while you talk about your plans and how this could mutually benefit all parties involved. You're not really sure what your saying any more as a certain white princess has caught your attention, suggestively playing with her cutlery, she seems to lick the sauce off the spoon much too slowly and often to be normal. Celestia's horn glows slightly brighter and you feel a pressure on your inner thigh. It feels very similar the when you got scanned at the portal, except instead of a cool sensation its a very warm, no, hot feeling.
The movement spreads further. further, until it brushes against your cock, the princess of an alien world is giving you a telekinetic hand job underneath the dinner table her sister is sitting at. Holy fuck that's hot.
You feel he ministrations grow faster, and you start to thrust you hips into the feeling. The magic feeling around your junk vanished completely and you hear a voice
"Well Luna, its about time I went to bed. Mr. Lindon would you like to walk me to my room" If the words were't enough the lustful smirk she held while saying it gave you all the knowledge you needed.
"I'd be honoured, princess"
You barely make it back to he chambers before she jumps you. there's no time to protest before she teleports your pants off of you and engulfs your member down to the root. It feels like you just stuck your dick in a pool of magma, but in a sort of pleasant way, not a singed penis kinds of way. Celestia has a lot of experience in this field of diplomacy, you can tell, with no hint of a gag she takes your member into the back of her throat again and again. It quickly becomes to much for you to handle.
"Cel-celes" is all you manage before exploding into her mouth and down her throat.
Finished with her after dinner snack she turns to face you.
"Mr Lindon, are you good at keeping secrets?"
You nod your head in affirmation, wanting to see and experience more. You are confused when Celestia lights her horn once more, the glow fades after a moment leaving you wondering what happened. Then you look down and you quickly work out what changed. Between Celestia's legs are a pair of giant, absolutely huge swollen testicles, each easily the size of you head, you wonder what kind of fishing rod goes with the tackle box of that size.
Celestia seemed to sense that question and her body took the initiative to answer it for you, the python thick, black cock snaked its way out of the princesses sheath, it keep going and going until it stopped about a foot from the princesses own muzzle, that thing had to be at least two and a half feet long as well as half a foot wide at the tip, which had started drooling copious amounts of precum.
You say the first thing that comes to mind. "wow, that's a pretty big secret"
It seems like that was the response Celestia was after and she giggled while her throbbing horsecock jumped with each surge of blood that went through the giant cum hose. You lean forward eager to have a taste of that fluid dribbling from the tip, it smells like raw lust and musk. the taste however is what sets you off, licking furiously, the head, shaft, medial ring, you cant get enough of her.
You look up at Celestia, she looked down at you, it seems like she wants you to go further but you don't know whether that massive horsecock could even fit inside your mouth. I guess there's no shame in trying. With that you try and stretch you mouth and jaw over her flaring head, you try and try again each attempt unsuccessful. You just want to please your princess, you may not be her citizen, but she is definitely YOUR princess. After several more unsuccessful attempts you go to pull off the giant head to tell her the bad news, but as you go to pull off you feel two heavy hooves find a home on the back of your head, slowly but powerfully pushing you onto her cock. Your eyes open in wild panic as her cock consumed the entirely of space and more of your mouth, you can still feel the large injections of precum flowing from the head but can no longer taste it as Celestia forces her six inch diameter thick cock down your throat.
You feel immense pain, but also the strangest sense of pleasure as your throat is stretched taut over the princesses pole. With no room to breath around the giant meat stick, air is quickly running out. sensing this Celestia pulls back enough to allow air through. However much to soon to recover fully, she thrusts back in with more vigour than the initial entry, you feel the air rush from you lungs as Celestia's cock pushes them aside. Celestia does this again, entering more with each forced entry. The only sounds in the room are the feminine grunts of Celestia when she thrusts, and the loud squelching when she retreats.
The time between her thrusts is also decreasing giving you less and less time in between lung emptying lunges. Celestia continuous fucking your throat for the next few minutes, until you feel it, lodged somewhere in you stomach he head swells. It swells wide enough to bulge out of your abdomen, what follows it the first of many deluges of cum straight into your stomach, you feel it rushing in waves. With her cock lodged so deeply you feel your oxygen stores failing you. You start choking around her dick. This only seems to enhance her pleasure more with the added tightness of your spasming insides rub over her medial ring stuck somewhere between your lungs. Just as you feel your vision fading the stream of cum stops and Celestia pulls free of your horribly stretched throat.
After about five minutes of sucking air into you lungs you start to regain some sense of normalcy.
"I'm dreadfully sorry, it had been a very long time for me and I lost control, and I wo-"
You silence her worrying with a very sloppy kiss, it seems that she doesn't mind the taste of her own cum, and with a dick that long she's bound to have tried it.
Your kiss of the solar princess seems to have given second wind to here meat pillar, in fact it feels larger, almost as if the throat fuck was the entrée. Looking into Celestia's eyes you confirm your theory, and it looks like she's ready for main course.
Celestia uses her magic to push you down fully onto your stomach. Inquisitive you try to turn you neck to watch her, but you feel it first. Celestia's tongue wide but nimble starts pushing into your tight pucker. You feel her being extra messy, and with a dick the size she has, you're probably going to need it. Happy with the amount of fluid she's left surrounding your hole, Celestia motions you to sit on your hands and knees. A few moments later you feel her flesh hammer, the size of a small tree trunk batter up to your defences. The princess gets more aggressive with her pushing slowly working down the barrier between her nearly 3 foot long pole and your poor body.
For the first time in a few minutes you hear Celestia speak, "Bite the pillow"
You don't need to be told twice, as soon as your teeth lock around the soft fluff, your tight asshole becomes home to the largest cock in Equestria. Celestia moans in ecstasy as she slides in as deep as she can reach. While she does this you start on a huge chains of forced orgasms given to you by Celestia's cock crushing your prostate.
Celestia can only get about half of her giant member inside your not so tight rear on the first thrust. You look back to see the most concentration you've ever seen on an creatures face on either world. The princess withdrawn until only the flared head remains inside. She then thrusts with all the strength into your sorry asshole, she continues with her whole length thrusts fitting in a few inches more than the last with each thrust. A few thrusts later you feel them, giant pony balls each now the size of a large watermelon slapped your ass.
"I'm close, hold on this might get a bit rough" hisses Celestia through her teeth
Wait- she wasn't being rough before?
You get you answer a second later when you can't count half a second between when she's hilted inside you and when only the head remains.
The rapid three foot thrusts do their job, you can feel them, balls churning with seed ready to pump its seed into whatever needy bitch was on the end of the princesses cock. Everything stops moving as you sit firmly in Celestia's lap, then it happens, in the first pulse of seed your bowels fill, then the stomach is next. You cant see the end of the princesses giant horsegasm, even when you feel her cum rising up you throat, pushed all the way through from the other side. She keep cumming as it bursts from your mouth and nose in streams. Eventually the princesses stream dies down but her cock remains rigid in your ass. The last thing you hear her say before you roll over to sleep, cock still balls deep.
"I think we've got a deal"
Author's Note
Wow, so much fetish in the one story. 
