Chains clinked as Princess Cadance was hoisted above the crystal throne. Strapped into a suspension rig, with her head towards the ceiling and ass above the throne, she was ready at last. You sit down on the throne itself and admire your work. Above your lap is the Princess of Love, bound-at your total mercy. You give her cutie mark a spank and she cries out, her mouth unmuzzled. With the pony above you all yours, you begin to explore. Your hoof gently strokes her soft thigh, her legs spread apart by a spreader bar. The lovely fluffiness of her coat shows how much care she puts into it.
You slide your hoof up her leg, bypassing her pussy and giving her pink plump rump a press. She gasps gently but you know soon she'll be moaning and screaming. You trail up to her tail and give it a yank, making her yelp and swing back and forth. You've had enough teasing and spin her around to face you. Her cunt is at head level and already damp. You comment to her about how much of a slut she is, being turned on like this. Suspended above her throne like a common whore.
You gently stroke her marehood's outer lips making her whimper. Stroke by stroke brings you closer to her core until your hoof brushes agaist her winking clit. You part her folds with both your hooves and inhale her wonderful smell. Enough messing around, you use your hooves to pull her closer as you lean in. You bury your muzzle in to her pink pussy, licking along her walls and sucking on her clit every so often. Princess Cadance cries out as you work on her pussy, her moans and cries echoing around the room.
Flicking with your tongue, suckling with your mouth, you redouble your focus on Cadance's clit. Your efforts drive her over the edge and she squirts her marecum all over your face. You lick your lips and smile up at your helpless toy as she hangs there breathing heavily. Yet you're not done, you spread her pussy lips again and use your tongue to tease her urethra. She cries out to you, telling you that she’ll piss herself if you continue, but you don't stop. After a couple of moments the bitter and salty tang of urine splashes onto your tongue.
You pull back with a sigh as the pink princess relieves herself all over you. Her strong smelling piss splatters onto your chest and belly for a moment before you duck your head under the stream and let her soak your face. As her pee splatters onto your face you can't help but to open your mouth and catch some of it. Once you have enough for your liking, you close your mouth and swallow as the stream weakens. You smile up at your slave as she looks away in shame. You tell her that her shame isn't needed, after all, why should she be ashamed of doing something her master likes.
You hear her mumble about how it's sparked another need in her. Your smile widens and you spin her so her butt is facing you before lowering her a bit. As you move her you tell her that she can have that relief that she wants, so long as she does it where you want. She whines about how humiliating that is, but you can already see her tailhole bulging and struggling to keep her shit in. She tries but she can't hold it and her waste begins to slide out onto your lap. At this point there's no stopping it, Cadance’s shit plops onto your lap, some landing on your hard cock and some on the throne itself. The stinking waste continues to flow until her three days worth are finally free from her anus.
You lower her down again, enough to be able to grip her flanks and push your shit covered cock into her ass. You use the slack in her suspension to aid in your fucking of her ass. The pink alicorn cries out as your cock fills her empty ass, and you fuck her shitty hole. You don't care about the brown covering your cock as you stuff it into that hot ass again and again. This is for you, your pleasure and your desire, and all Cadance can do is moan. Slapping of poop covered flank on poop covered flank echos in the chamber as you fuck her harder and harder, racing towards your peak with each thrust. Grunting with effort you slam your cock into her pink ass one last time and fill it with hot jizz. Your thrusting also brought Cadance over the edge, her juices adding to the mess on the throne.
You pull out of the alicorn's ass and spin her around. You lower her all the way down and slam your crap covered cock into her mouth. She gags at first, but you keep fucking her face. Pulling on her horn and thrusting forward you end up pressing her highness's face into the pile of shit on the throne, not that you care. Fucking her shit covered face is incredibly arousing and you know you won't last long. With a couple more thrusts you empty your balls down her throat, holding her head against your crotch and making her take it. Once your orgasm subsides you pull back leaving her face resting on the edge of the throne, right in front of your crotch. She's gasping for breath for a moment before she looks up at you and thanks you.
You smile at her and prais her for being such a good royal slut. Telling her that she deserves a reward, to recieve your golden mark, and to stay just as she is. Her head resting on the edge of the throne with her eyes closed, it's perfect. You aim your semi-hard cock at her face and let fly with your piss. It washes away some of the shit on her face and turns her fur a darker color. Cadance sits there getting soaked for a moment before opening her mouth and collecting your piss. The wonderful stream in mouth sound makes your cock twitch and sends piss up onto Cadance’s mane before you aim it back at her face. As you aim it back the now pink and brown alicorn swallows the piss that she had in her mouth and basks in the warmth as your stream comes to an end.
You're both tired and stinky but you get up from the throne and undo the suspension rig that the princess of love was attached to. With care and dedication you check her over for any bruising and injuries before slipping her onto your back and carrying her into the adjoined shower. Together you silently cleaned each other up, working together to dry of before leaving the shower. Slipping your mask on you summon the princess’s personal aftercare robe and, after cleaning up the room, guide her to the closest aftercare room. Once there you set about getting the pink princess some soothing tea before giving her some well deserved cuddles.
For a while there was only the sound of tea being sipped and a sub getting a massage. With Cadance nice and relaxed, you asked how she liked the session and it it was everything she had wanted. The alicorn giggled and nodded, telling you how wonderful it was to be used like that and how glad she was that you were willing to do what her husband could not. You smile back at her, telling her that you enjoyed it and that you were happy to help her live out that fantasy, since such extreme play isn’t for everypony. Though you thoroughly enjoyed the session and aftercare, the night was getting long and you both had things to do tomorrow. As the two of you left the aftercare room you offered to walk her to the connecting portal to the Crystal Empire, an offer which she gratefully accepted and so the two of you trotted off towards the entrance of The Society. No longer just princess and subject but friends in kink.