Reprobate Depravity

Story by Xianyu on SoFurry

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#3 of Vindicated Depravity


Twilight Sparkle knocked on the door to the room shared by her brother Shining Armor, and his wife Princess Cadance. She cleared her throat, calling out: "Shining Armor?"

The young unicorn was being cautious, her tone a little nervous and wavering. She hadn't seen her brother since their little tryst by the lake. And by 'tryst', she meant the wild incestuous rutting they'd shared, after burying their mouths in and around eachother's respective genitalias, Twilight reminded herself. The image of her brother, panting and satisfied, fast asleep by the lake with her liquids in his muzzle and the softening length of his stallionhood, mixed with his own pearly semen, was burned into her mind. Twilight would never admit it, but she wished she was a painter, so she could immortalize the scene on paper. And then clop furiously to it whenever the urge took her.

It had been over two weeks since that point, and Twilight was resolved to talk privately with her brother on the subject. She was going to cut it off before it could happen again, stop the depraved thoughts happening in both of their minds. She had a counselor all lined up, sworn to keep her 'little secret' confidential when she dragged her brother to the appointment. She would excise the incestuous fantasies from both of their minds so they could resume a natural brother/sister relationship.

And Cadance. The one who had started all of this. Twilight still wasn't sure how she would deal with her. Maybe she could even convince the princess to attempt to make Shining Armor see how depraved he was?

There was a shuffle of movement from behind the door, the sound of the handle turning, and then it was thrown wide.

"Twily!" Shining said in an excited tone, grinning from ear to ear and hugging around her neck with his forehooves as though he had been expecting to see her. "How good of you to come! Come in, come in!"

Completely confused and wrong-footed, Twilight tentatively stepped into the room, closing the door behind herself.

Shining Armor bounded over to the bed eagerly, throwing himself upon it with the sound of straining bedsprings, the stallion curling around to peer at his sister with a grin, before asking coyly, "Are you coming?"

Blinking once, her ears pinning back, Twilight Sparkle stepped slowly over to the bed, uncertainly pulling herself up onto it, sitting down awkwardly on her haunches.

"Shining, I-"

Shining Armor cut her off by crawling closer to her and leaning up to kiss her heatedly, pressing their lips together and tilted his head slightly to the side to press his tongue between her lips.

Twilight made a soft sound of alarm and dismay, trying to push the forceful stallion away, wrenching her lips from his own, her cheeks flushing heatedly. "Shining, Stop!" Twilight said forcefully, her tone commanding. "I'm your sister! You're not supposed to be kissing me!"

The stallion paused at that, a look of concern coming across his muzzle, before his expression turned into that wry, playful grin again. "Ohhh, I know what you mean, Twily!"

In an instant, Shining Armor was upon her again, tugging her around and throwing her onto her back on the bed, a hoof pressing against her stomach as his other powerful foreleg press her hindlegs open.

Twilight had time to gasp in surprise, her eyes widening, twisting to stare down at her brother, her cheeks burning.

Shining Armor drank in the sight of his sister's pussy, his eyes narrowed and tail flicking eagerly back and forth. With her legs spread, everything was visible, from the puffy outer lips, visibly soft and covered in that short purple fuzz, and the sliver of pink between them, promising slick, smooth inner flesh. He licked his lips once, glancing up to her face with a grin and then shoving his nose in against her. Immediately, that strong, velvety tongue began to lap at her, working at first in a slow, strong motion, from the base of her purple cunt, right up to the tip, flicking off her clit.

The unicorn whimpered, her hooves flying to her mouth as her stomach convulsed and her sex clenched immediately at a non-existent object. Twilight hadn't managed to bring herself to an orgasm for a full week, determined not to clop to her very own brother, and it had left the young unicorn antsy, very easy to work up. Already, those soft purple lips were swelling with blood, moisture beginning to make itself apparent between the soft outer lips.

Shining Armor lapped at her harder, grinning up at her as he tongued at her tight cunt firmly, eyes locking on her own over the curve of her stomach.

Already looking disheveled, with her hips twitching, Twilight curled around to try and grip at her brother's horn, to push his face away from her rapidly heating folds.

The stallion took her motions for assent, and quickly swirled his tongue up to toy with her clit, closing his lips over it and beginning to suckle powerfully around it, humming to add vibration.

Twilight yelped, her back arching hard and her entire form spasming, her stomach muscles rippling as a small, unexpected orgasm struck her, her plump cunny giving up a sudden slick gush of her liquids.

Neither of them heard the door open and then close again quietly.

Shining Armor grinned, giving a delighted sound as he slipped down to tongue at the base of her quivering sex, swirling his tongue through her sweet liquids with an eager hum, muzzle pushing against her powerfully.

A weight settled on the bed, and Twilight looked up in time to see herself staring down at her, before she pressed her muzzle down and captured her horn in her mouth, pressing right down to the base, suckling and swirling her tongue along the entire stiff spire in a practised motion.

Twilight whimpered helplessly, her entire form tensing up as she felt her horn and heated pussy both being assaulted by muzzles. Her hoof finally found her brother's horn, and she gave a soft shudder and a whine, clenching her thighs around his head and wrapping her hoof further down to twine with Shining's mane. With a heated groan, the young unicorn gave in, tugging her brother's muzzle against her heated cunt while grinding her hips towards him helplessly.

Shining Armor gave a low rumble of delight against her, tongue working against her hard and fast, trying his best to dig his tongue into the moist slit, letting his velvet tongue wash against the soft, silky-smooth inner flesh.

A helpless groan left the unicorn as she arched and quivered, her head being held in place by firm, but gentle hooves at her neck, just at the line of her jaw, so that her clone above her could work her muzzle all the more firmly over the stiff horn, bobbing her head firmly back and forth while humming heatedly.

The horn within the clone Twilight's muzzle began to glow fitfully, pulsing with magic in the same cadence as the tonguing she was receiving at both her aching cunt and sensitive horn. Her hindlegs gripped her brother's head as her hips shoved against his face reflexively, the young unicorn screaming in delight as she came hard. A burst of magic filled her clones muzzle, shining so bright that it was visible through both her cheeks and the paint covering them, while a hot gush of liquids splashed across her brother's face, slicking his cheeks and muzzle with her liquid lust.

Slowly, Twilight came down from heaven, giving soft little breathless whimpers as she collapsed back into the arms of painted-Cadance. Cadance lifted her muzzle from the unicorn's horn, grinning down at the slick countenance of her husband, with his own sister's liquids dripping from his pristine white fur.

Grinning, Shining Armor swirled his tongue against his sister's cunt slowly, and then looked up at her face.

The stallion paused, blinking once.

Two Twilight's greeted his gaze, one flushed hard and panting, looking elated, her horn slick with saliva, while the other Twilight was perfectly composed, licking her lips innocently and smiling down at him, raising a brow.

"T-Twily?" Shining asked, his voice suddenly hoarse as he licked his own lips nervously.

Cadance gave a soft laugh, nudging the unicorn gently for a moment. "She's taken a vacation, lover. Can I take a message?"

Shining Armor stammered, his cheeks flushing hard as he quickly tugged himself away from his sister, looking away, the blush intensely visible on his white furred cheeks. "I-I thought it was you, Cadance!"

Cadance giggled and shook her head. "Shining... I was there at the lagoon. I was watching," she purred seductively, gently laying the euphoric purple unicorn aside and then moving towards her brother, rubbing herself up against his side, her tail flicking to trail along the stiff length of his flesh bobbing beneath his belly.

"Y-you were watching?" Shining Armor asked, his tone a squeak.

The princess nodded slowly, giving a sly grin. "Watching and clopping furiously."

Shining Armor gave a whimper, shifting his weight from hoof to hoof slowly.

Twilight sat up with a low groan, panting and visibly shaken, peering over at the pair, looking from herself to her brother. Her usually studious mind slowly put two and two together. "C-Cadance..."

Cadance nodded gently, smiling. "I see my lessons with Shining have paid off. He made you orgasm quite hard, didn't he?"

Twilight nodded automatically, her cheeks flushing as she tried not to look at the length of stiff pony cock hanging beneath her own brother's stomach.

"You want this, don't you,Twilight?" Cadance asked, slipping a purple-painted hoof down to push at the thick member, making it bob and twitch.

Flushing, Twilight nodded, refusing to vocalize her answer.

Grinning, the alicorn tugged at her husbands mane, pulling the willing but nervous stallion over to the bed, before she heaved her hips against him, pushing him onto the bed and rolling him onto his back calmly. A hoof lifted to gently trail down the length of throbbing member, and Cadance lifted her gaze to Twilight's.

Twilight was staring at her brother's rigid member with embarrassment and guarded desire, a hoof stuffed between her legs as though to hide herself, even though she was slowly grinding herself against it. Twilight glanced at Cadance, realising that she had been caught staring, and her blush redoubled, burning on her cheeks as she bit her bottom lip and looked away.

"Shining made you orgasm... it is only fitting that you return the favour, yes?" Cadance asked, grinning, casting her gaze from one sibling, to the other.

Shining Armor stared at his sister, panting, his cheeks, neck, and the base of his ears flushing with warmth. He didn't say anything, but his throbbing cock spoke for him, pulsing intently at the idea of his own sister tending to him.

Still biting her bottom lip, Twilight nodded, and then turned her nervous gaze back towards Cadance and the thick cock she was stroking. "Y-you were watching when w-we...?"

Cadance nodded slowly, giving a sly grin.

"W-why didn't you sat anything?" Twilight asked, inching closer and reaching out a tentative hoof to rest on the throbbing member, feeling the warmth pulsing through it.

"I hadn't seen you since then," Cadance said with a sly grin, casting her gaze back towards her husband. "I'm willing to bet he'd just love to have a pair of Twilight's tending to him," Cadance murmured with a heated grin, squeezing the base of his member while Twilight herself began to stroke her hoof slowly up the length of the stiffened staff. "Wouldn't you like that, Shining? Having two of your little sisters tending to your stiff stallionhood?"

A low groan answered her, and a spurt of precum drooled from the tip of the thick member, spilling across the stallion's stomach.

Flushing hard, Twilight leaned over her brother further, until her chin was near the tip of the long member, the uncorn stammering faintly, "S-shining? D-do you want me t-to..."

Shining's head lifted, and he bit his bottom lip hard, looking from one Twilight, to the other, giving a low whimper and then nodding earnestly. "Y-yes! P-please!"

Twilight shuddered, pressing down until her chin bumped the thick tip, allowing her to inhale the potent, musky scent of her brother. Without her mind clouded with insatiable lust, she had time to realise what she was doing, to really cogitate on the fact that she was about to suck on her brother's cock.

Flushing hard, one of Twilight's hoof's pressed down between her thighs, grinding against her drooling cunt as she pressed down and swirled her tongue through the trail of precum on her brother's chest, following it up to the fleshy tip of his cock and swirling her tongue heatedly against it.

Shining Armor gave a low growl of delight, his back arching as he shuddered and stared down at the sight of his sister beginning to tongue and lap at his drooling tip, while his wife, a perfect clone of his sister, watched!

Twilight mouthed over his tip, panting hard through her nose at the taste of her brother's musk flooding her muzzle, and Shining Armor groaned as she began to delicately push his tip into her muzzle, stretching her mouth around the thickness of it. Shining Armor gave a soft grunt of delight as he watched his sister taking his tip into her muzzle. Beyond that, he saw his wife - his sister - pressing her muzzle down to swirl her tongue heatedly against his balls, the ticklish sensation making him jump and jerk in surprise and delight.

The purple unicorn gently pushed her muzzle further down his member, grinding her hoof more firmly between her hindlegs, working against her aching cunt repeatedly. Her lips stretched around him until her mouth was completely full. A spurt of precum hit the back of her throat, and she gave a muffled groan around him, shuddering and beginning to rub her aching, heated cunny rapidly, even as she started to bob her muzzle on her brother's throbbing cock.

Cadance grinned up at her husband past his sister's flank, her gaze pausing for a moment on the sight of Twilight masturbating as she went down him, before she flicked back to the expression of unabashed pleasure on Shining Armor's face.

Purring, Cadance began to suckle at his testicles, her hooves sliding forwards to grip around the base of his member, beginning to eagerly stroke him off while Twilight suckled at his tip, even as she stared up at him with her most seductive glare.

Shining Armor whimpered, watching the two different images with helpless delight. One on hoof, he had Twilight between his thighs, suckling and lapping at his nuts, glaring up at him seductively, giving him exactly what he wanted. And then, just to the side of this his actual sister was tonguing at him, whining in the back of her throat and masturbating as she blushed at the sheer naughtiness of what she doing!

Already, Shining Armor could feel a tightness growing in his chest, that little tingling in his loins becoming an alarming buzzing, his hindlegs growing weak.

Cadance grinned and pulled off of his testicle with a soft pop! of suction, quickly crawling up to where Twilight was eagerly bobbing her muzzle. A gentle hoof stopped the unicorn, and Twilight's eyes flicked open, the unicorn blinking at the image of herself, reluctantly releasing the thick member from her muzzle.

Grinning, the alicorn shifted and swirled her tongue around Shining's drooling tip. "Allow me..." she whispered heatedly, quickling diving her muzzle down over the throbbing member, bobbing in earnest.

Shining Armor grunted and arched, shuddering and giving a low cry of delight, staring down at the image of his sister watching herself bobbing on his eager cock, the entire thick thing throbbing and pulsing against her tongue.

Cadance pulled back suddenly, and pushed the stiffened cock towards Twilight. Twilight flushed, but quickly slipped it back into her muzzle, bobbing on it as Cadance had done, though she was noticeably different. Where Cadance swirled and lapped with her tongue, Twilight merely swirled her's against the underside of the hot member, suckling gently at her mouthful.

The alicorn gave an impatient sound, and Twilight relinquished the spire of flesh to her babysitter.

Grinning, Cadance pushed her mouth back over the member, laying her tongue against it, feeling the throbbing and jerking of it within her mouth, so close to finishing. With an inward giggle, the princess began to bob her muzzle, hooves lifting to start jerking off the stallion with rapid strokes, encouraging his orgasm.

Twilight panted faintly, watching with interest as her facsimile worked her own brother's cock with such an earnest bobbing and jerking pace.

Cadance tugged back as the thick cock throbbed, and Shining Armor groaned, tensing up all over. She pushed the thick member back towards Twilight, just in time for the first thick spurt to splash across her muzzle, leaving a long line of white from her nose to her forehead.

Twilight stared with wide eyes as the throbbing cock gave up another slick burst, spilling into her mouth, already opened in anticipation of accepting the thick member. Her gaze flicked to her babysitter, and she shuddered, before she dove her mouth over the throbbing cock, suckling and bobbing her muzzle in earnest.

Shining Armor grunted and arched as he felt his sister bobbing and suckling on his cock mid-orgasm, his hooves clenching at the bed helplessly as he cried out aloud, thick, hot bursts of his gooey heavy cum sspilling into the suckling mouth again and again.

Twilight shuddered, her ears pinning back and her free hoof shoving against her clit roughly as she felt her brother spilling his urgent load into her mouth, coating her tongue and filling her muzzle with the musky taste of his spunk.

After several long, intense moments, the throbbing in the length died down, and Twilight whimpered muffledly around her mouthful, beginning to slowly draw back.

Cadance was there waiting, quickly pulling the unicorn into a heated kiss before she could swallow her brother's thick load. The princess twisted her muzzle and parted her lips, forcing Twilight to likewise open her mouth, the princess meshing her tongue with Twilight's, sharing the musky, gooey spunk between their mouths.

Shining Armor came back down to earth to the image of two of his sisters sharing his essence, the one with the messiest mouth whimpering and groaning helplessly, her cheeks flushing hard.

The two Twilight's pulled back, and swallowed, one of them flushing hard while the other gave a naughty grin, raising a brow. "Never kissed a girl, Twilight?"

Twilight flushed hard, shaking her head.

Shining Armor panted heavily, looking between the two with a low groan, slowly relaxing.

Cadance grinned innocently, and then rolled onto her back, slipping a hoof down to spread her slick sex. "Well... there's a first time for everything. You use your tongue on me... and I'll return the favour."

Twilight stared, her eyes wide, gazing at herself spreading her legs and offering such a naughty, lesbian act! But there was still an ache between her legs, and it was a tempting offer...

Flushing deeply, exchanging a glance with her brother, Twilight crawled over to her clone and then carefully crawled atop her, nudging her nose against her clone's nose for a moment, her blush intensifying. Panting softly, Twilight slowly slew around, stepping carefully until her hindlegs were on either side of Cadance's chest.

Cadance grinned, wasting no time at all, splaying her hindlegs as she wrapped her hooves around Twilight's middle and pulled her hips down against her muzzle, shoving her tongue into the unicorn's leaking cunt without a hint of hesitation.

Twilight groaned faintly, her legs going weak and her eyes sliding closed. A soft, feminine scent assaulted her nose, and she blinked once, casting her gaze downwards to the spread thighs of her babysitter right in front of her. The soft outer lips of her cunt were plainly visible, slicked with moisture and eager for attention. Twilight flushed even harder, leaning in tentatively, and then giving the slick entrance an experimental lick.

Shining Armor rolled onto his side, a hoof pressing against his stomach and slowly beginning to work at his hardening cock as he watched his sister in a soixante-neuf with herself! He could plainly see Twilight's tongue swirling at his wife's quivering pussy, delicately, tentatively lapping across the heated folds. Past that, Cadance's muzzle was buried between Twilight's thighs, tonguing powerfully at the drooling pink and purple slit, a dribble of liquids drooling slowly down her chin.

Whimpering, Twilight pressed in even further against the princess' drooling cunt, swirling her tongue more firmly against it, becoming more comfortable with the motions and the idea of going down on another mare.

Cadance drew back for a moment, and mouthed something to her husband. Twilight paused, blinking, before her eyes widened, feeling Shining Armor suddenly climbing atop her. Her cheeks warmed again, and she gave a soft shudder, lifting her hips up invitingly, even as her knees went weak with the knowledge that her brother was going to fuck her, even as she was exchanging oral with Cadance!

Shining Armor took the offer of lifted hips, grinding himself against her with a heated groan, and then shifting to begin stretching her around his tip with an eager hiss. Twilight whimpered, gripping Cadance's hips tightly, pushing herself back against her brother with a firm pressure to help that thick cock spread her aching cunny. A soft tongue trailed against her clit, even as her brother sheathed himself inside her, and Twilight fairly screamed, shuddering and going weak as a fitful burst of orgasm liquids spilled from her stretched cunny to drool from around the embedded cock.

Cadance grinned, lapping at the drooling liquids as Shining Armor gripped his sister and began to hump into her slowly, sliding back and then grinding forwards, allowing the unicorn to become accustomed to the thick cock filling her.

"M-mate me b-brother," Twilight whimpered breathlessly, her cheeks burning as she buried her muzzle back between Cadance's thighs and began to tongue at her powerfully, lapping fervently at the alicorn's own drooling cunt.

With a low growl, Shining Armor did as his sister asked, gripping around her middle with his hooves and beginning to rock his hips powerfully, the circular motions sliding the girth of his cock out of her gripping cunt, before sinking deep inside her again, spreading her velvety soft depths around him. Cadance watched all this with an eager gaze, with the perfect ring-side-seat to the main event, her nose a mere inch from the action, soft tongue occasionally lapping some of the buildup of Twilight's moistness where it was gathering at her tip of her clit.

Twilight cried out aloud into her clone's moist cunt as she was taken by her brother, her ears pinned back and hips pushing in counterpoint to his motions, her tonguework getting more and more erratic as she was taken.

Panting in delight, Shining Armor began to take his sister harder, shoving himself hilt-deep inside her tight, gripping cunt, until his tip kissed against her cervix. The shock of the bottoming out made Twilight whimper and shudder, orgasming instantly at the mix of pain and pleasure, a slick burst of her liquids drooling from around the thrusting cock to splash across Cadance's muzzle. The princess for her part gave a cry of delight, lapping eagerly up across the messy joining of the two siblings, whispering encouragement.

"Fuck her, Shining! Cum in her!" Cadance urged, grinning wildly and grinding her quivering cunt against Twilight's muzzle. "Fill her with your spunk!"

Shining Armor whimpered, his own ears pinning back as he nudged his sister's cheek gently. "T-Twily... C-can I?"

Twilight pulled back from Cadance's sex just long enough to nod fervently, before burying her tongue back in the alicorn's cunt, tongue working at her furiously.

Growling in delight, Shining Armor began to fuck his sister with an urgent, eager pace, shoving his hips against her over and over, rocking both of their forms back and forth as Cadance stared at their union with lustfully narrowed eyes.

Twilight's eyes widened and she stiffened as she Cadance suddenly latched onto her clit, suckling powerfully and tonguing at her, even as Shining fucked her hard, making the unicorn tense up and orgasm again, her insides clenching around her brother's thrusting rod, squeezing and milking it.

Shining Armor grunted, braying heatedly as he shoved roughly into his sister, gripping her tight and burying himself into her until his tip was mashed against her very deepest barrier, the flaring tip caught and squeezing by her powerful inner muscles, making it almost unbearably tight inside her. The tightness snapped, and the stallion snarled, crying out in triumph as the entire length of his cock throbbed and jerked, trapped by Twilight's squeezing, orgasming cunt, the sudden hot bursts of spunk splattering across her deepest barrier being squeezing out instantly by the grip her depths had on him. The stallion grunted, shoving his hips back and forth a few inches as he emptied himself into his willing sister, the two of them crying out in delight at the sensation of his hot load coating her insides and filling her completely.

Cadance stared with wide eyes, her chest heaving with excitement as she watched Shining Armor spilling into his sister right in front of her, a slow buildup of white mess heralding what was to come. The princess of love opened her muzzle up with an eager sound, closing her eyes and holding steady. A moment later, the first thick dribble of Shining Armor's spunk spilled from Twilight's squeezing, spasming cunt, drooling from around his embedded cock in a thin line, right into her muzzle.

The princess continued to hold her mouth open, grinning widely as the warm mixture of Twilight's and Shining's orgasmic liquids drooled into it, rapidly filling her muzzle until it began to leak from the corners of her mouth. A low groan left the alicorn, and she shuddered, a hoof grinding between her legs to bring herself to a quick, messy orgasm at the taste of the two and the sight of their finished joining directly above her.

The alicorn whimpered around her mouthful, closing her eyes and shuddering, her legs going weak as her liquids spilled out between her thighs, wetting the bed with her slick moisture as she held herself in position. The three of them looked like an adults-only fountain, with the slick whiteness drooling slowly between Cadance's eagerly spread lips, until she closed her mouth and swallowed audibly, giving a low groan.

"You two are so naughty!" Cadance said with a giggle, leaning up to lap at their joining, swirling her tongue across cock and cunt alike, cleaning the slick white mess that was still sluggishly being squeezed free the unicorn's slowly relaxing depths.


Twilight stood at the door, peering back over her shoulder with a smile. Shining Armor and Cadance were on the bed, all clean now after a long bath together where the three of them had lazed and had a nice talk about mundane things.

The couple smiled and waved at her. "Goodbye, Twily!" Shining Armor called.

"Come back soon, Twilight!" Cadance called in counterpoint, smiling innocently.

Twilight couldn't help but giggle to herself, her cheeks flushing faintly as she closed the door behind her and began to make her way out of the castle.

She had a counselor booking to cancel.