"Hmph, this day WOULD be perfect, if not for the feeling that that obnoxious Twilight Sparkle has something up her sleeve..." the evil Cadance huffs, tossing aside her wedding gown as she glares at the pair's struggles in the sub-Canterlot caverns. "At this rate, they'll be here just in time to try and ruin everything." The soon to be ruler of Canterlot wouldn't take such interference laying down, her pink, regal horn glowing with a sinister green, enveloping herself in a dark glow before she poofs out of the bedroom tower. Her wedding would have to wait a few.
 
"Cadance, this way!" Twilight runs breathlessly through the caves, the weary princess trailing behind her, hooves clopping heavily through the musty depths. Their tiresome charge was mirrored on the crystals lining the walls, voices echoing through the endlessly expanding caverns.
 
"Twi, I... we've been going for awhile now," Cadance slows to a trot, crumpling tiredly to the ground, catching her breath. "J-Just a few minutes..." the princess whimpers, picturing her poor Shining Armor about to marry some horrid impostor, but even the image of that couldn't bring about the strength to continue her search.
 
Twilight stops, coming to a dead end, a towering wall of icy crystal standing before them. "But Princess, I... I know we're getting close," Twilight urges her, turning to give an encouraging nuzzle. "There's something ahead of here," she insists, perhaps bluffing. The unicorn's purple horn glows and fizzles with a spell, her magic nearly exhausted from the ordeal. She could conjure up just enough strength to smash through here. "Just a little more--" she grunts, accumulating a spark at the tip of her horn, blasting the wall with a burst of solid magic. It explodes in a glassy array of glittering red, shards littering the floor around them as the magical-smoke clears.
 
"Ha, Twilight Sparkle, and... Cadance," Chrysalis smirks, trotting from the still dead-end in the wake of the damage. "Who knew ponies could be so easily lured by a little shine," she boasts. The pair had fallen into her trap!
 
"Y-You... thing!" Cadance growls, rising to her weary hooves, glaring down her nemesis. The chance for revenge was just what she needed to summon up a little strength, lowering her stance and preparing to charge.
 
"Stop right there, Princess," Chrysalis holds up a hoof, defiantly shaking her head. "Wouldn't want anything to happen to Twilight's brother, would you?" she gives a toothy grin, a disturbing contrast to Cadance's stolen form. The two give a wary, dripping glare, wondering what lie the changeling would spin to her benefit. "Harming me won't break the spell, you know," the changeling queen snorts. "It's a fine way to ensure that your lovely Shining spends the rest of his life as a useless vegetable, I suppose, but I doubt that's what you're going for..."
 
"Y-You're kidding," Cadance gasps, taken aback by the revelation. Twilight is a little more skeptical, her anger looking about ready to burst.
 
"Nope." Chrysalis chuckles. "But excuse us a moment, princess, it looks like your little friend here doesn't believe me." She raises a hoof, slamming down a wall of crystalline glass, barring Cadance from the feuding pair. "Oh Twilight, don't you care about your brother's well-being?"
 
The unicorn growls. "You... Just wait until I tell Celestia. She won't stand for this, and neither will I!" she leans back, and pounces, sailing through the air, the bookish unicorn looking as angry as could be. Against a lesser opponent she might've stood a chance, but a changeling brimming with power could dispatch her with ease. Chrysalis lazily casts a levitation spell, clutching the unicorn's wriggling form in the air, holding her before her smirking grin as she swings her hooves wildly. "L-Let me go!"
 
"Not likely, Twilight." the impostor-princess yawns, her gaping jaws giving a teasing blast of pony breath over the helplessly dangling pony. "But I won't make you suffer the indignity of defeat at the hooves of your old babysitter," the changeling laughs, shedding her stolen form, replaced with the ebony shine of bug-like carapace, piercing green eyes staring down her opponent as Twilight desperately struggles and squirms. "Ahh, nice to be away from those ponies above and shed that awful form," she spreads her translucent wings, giving a leisurely stretch. "They'll accept me as is in time, of course, once I do away with the rest of Canterlot's royalty."
 
"You'll never get away with this!" Twilight fumes, her horn shooting a few sparks as she tries to muster a spell, the terror of her dilemma making focus impossible, and exhaustion doing the rest. Magic wouldn't come to save her now.
 
Chrysalis is all too aware, ready to draw out Twilight's demise, if only her stomach wasn't urging her to proceed with haste. "Cadance I can easily deal with," the bug pony gloats, "but you have more spirit than a mare your age has any right to. I'll have to dispose of you." she threatens, licking her lips between her slightly protruding fangs.
 
"D-Dispose?!" Twilight winces, her strength taken aback by how casually this villain spoke of her demise, disturbed by how helpless she was. Her hooves were becoming tired from their groundless flailing.
 
"Why of course! Some of us have a wedding to get to, after all. Can't be held up with you two forever." Twilight opens her mouth in wordless protest. Chrysalis does the same, clamping her toothy jaws around Twi's muzzle, pinning her mouth shut as her tongue gives a thorough slurping, the unicorn grunting in disgust as the changeling's tongue bathes her face in drool. Disgust would turn to horror as she's shoved deeper inside, Chrysalis's maw expanding as necessary, unbelievably so.
 
As she slides toward the bug-queen's gullet, Twilight's mouth is freed to cough and sputter, gagging on the scent of her breath. Her hooves press against those toothy jaws, cringing as strands of drool spill from the savoring maw, gaping a little more. The unicorn gasps in terror as her hooves loose-grip and slide inside, her head slipping into the changeling's esophagus, vision blotted out by the slimy darkness as the first swallow all but seals her fate. Chrysalis continues at a steady pace, slurping over Twi's belly and slicking her up, her irrefutable spell gradually feeding more of the unicorn to her greedy gob, nibbling and tasting, swallowing her down bit by bit...
 
Eventually the darkness comes to a tight, fleshy valve, Twilight momentarily smushed against it as the walls clench and squeeze. Her hindlegs kick desperately in the air, tail swishing wildly about, a muffled cry from within urging the real Cadance to come to her aid. All the princess could do was stare through the solid barrier that kept them apart, afraid to raise a hoof against the evil pony. Her future husband's well-being was at stake. Surely once Twilight was... dealt with, the two could come to some agreement. She sobs quietly as she sees her unicorn friend sinking helplessly down, hooves disappearing, body contained as a sizable lump in the changeling's throat.
 
The darkness of Chrysalis's gullet gives way to a dim light as the fleshy sphincter eases open, the unicorn slopping down to the changeling's semi translucent belly, landing in a burbling pit of pre-readied acids with a wet sploosh. "Ahhh... hopefully Shining won't resent the padding his sister makes on my flank," Chrysalis chuckles to herself, giving a toothy smirk to the resigned princess beyond the wall, patting her belly to taunt the pony within, shaking her about.
 
"I will not-" Twi gurgles and flails, stabbing her horn against the thick, pressing walls, succeeding only in a taunting chuckle from the satisfied predator and a thick coating of digestive goop for her efforts. She couldn't go down like this. Just because she'd been gulped so easily, she wasn't going to digest in peace! She'd--
 
Chrysalis lets out a mocking yawn, the noisy burbling of her stomach breaking off the unicorn's frantic thought pattern, snapping her to the moment at hand. If she didn't escape soon, a little flank-weight was all she'd be. But try as she might, Twilight couldn't wriggle free. The valve she'd squished in through was strong and firm as a stone - no getting out that way. The thin, fleshy walls that taunted her with the view of outside were similarly useless to her. Any kicking and shoving against was met with a squishy bounceback and a splash of acids. Delving deeper through Chrysalis's tract was... well, where she'd be headed and absorbed if she failed to escape. She was out of options but to sit and digest, it would seem, sulking in defeat in the hot, churning gut of the changeling pone.
 
"Seems like you WILL digest," Chrysalis grins, gazing in at Twilight's sloshing form. "In fact, time tells me I ought to make it quick," the changeling smirks, hearing the bells of Canterlot echoing from the palace above. Another hour and she'd be late for her wedding. "Say goodnight, Twilight Sparkle," her horn glows green, zapping her stomach with a satisfying tingle, sending her stomach into overdrive. The gentle, threatening fizz of the acids turned into a bubbling nightmare, the unicorn whimpering in defeat before she's claimed by relentless, sloshing waves of digestive goop. Cadance can only stare on in horror as her childhood friend is engulfed in the digestive soup, breaking down beneath the thick slush of greenish slime, draining back into the walls and bowels of the smug changeling queen. "Heheh, now that that little interruption is out of the way," Chrysalis parts the crystalline wall with a spell, trotting through to hover above the terrified princess. "Don't look so down, Cadance, Twilight was a troublemaker." She raises her gaze with a hoof under the chin, forcing the princess to gaze into her eyes. "She's better off here," she chuckles, giving her slightly widened rump a playful wiggle.
 
"But... Shining..." Cadance whimpers, poking a hoof at Chrysalis's flattened underbelly, nudging... something, a solid bulk protruding between the changeling queen's legs. "What--"
 
"Oh, don't act so surprised, I'm a changeling, remember? Sprouting one of those is easy," the bugpony laughs, relaxing her stance, widening her legs and giving the princess a lewd, open view of the stallionhood dangling below her belly. "You should be quite familiar, actually, a replica of Shining's," Chrysalis chuckles, stepping toward the crumpled princess, throbbing maredick wobbling inches from her nose. "Why don't you give it a lick, hmm? Then we'll discuss your future with Shining Armor." Cadance nods, gulping nervously as her tongue pokes tenderly from her jaws, giving Chrysalis's shaft a shy slurp, saliva glistening on its tip.
 
"Oh Cadance, surely you can do better than that. You wouldn't want to face the same fate as Twilight Sparkle," she grins, shoving her meaty length between the princess's lips, who gags and sputters, retreating in response. Chrysalis simply rolls her eyes, turning and plopping her changeling-rump on the princess's face, tailhole resting just below her horn. "Lick, Cadance. It's Shining's, after all," she taunts, the thick, heavy horsedick bobbing up and down on her nose. The princess gives a resigned sigh, the musky scent invading her nostrils, urging her to comply. It was... not so bad, after all. That's what her mind told her - anything that offered a hope of seeing Shining Armor again would be worth it. With that in mind, she licks and slurps in earnest, her tongue giving a thorough once-over to the base of Chrysalis's shaft until her own slobber drips back on her face, sliding down her muzzle.
 
"Mmm, yes... I knew you wouldn't disappoint," Chrysalis shudders in delight, lessening the weight some, giving Cadance a moment's breath. The princess seems none too interested, scrunching forward on the dusty ground to lap at the changeling's groin, eager for more of a taste. As she licks and slurps, her mind becomes hazy, lust for the evil queen beginning to overtake her, her thoughts a blur as she nudges between Chrysalis's legs to suck urgently at the tip of her cock. The queen delightedly accepts, moaning in triumph as she bends the princess to her will. Even Cadance seems to find some pleasure in the lewd act, her marehood becoming moist with arousal as she allows more of the changeling's shaft to slip into her jaws. "That feels so lovely... keep it up, princess," Chrysalis coos, giving a gentle thrust down Cadance's throat, pre-cum dripping down her throat.
 
Cadance nods in agreement, letting the stiff mare-dick bounce up and down in the slickness of her throat, its throbbing signaling that her work was almost done. Then she could-- Cadance's mind swims in a thick haze, questioning her motive, not remembering how she'd found herself in this position. She continues to suck obediently, even as Chrysalis backpedals a few steps to make her work for it. Nothing like watching a princess grovel and plead for a mouthful of seed, she snickers to herself, a smug laugh broken off by gasps of pleasure. Cadance was skilled indeed, no wonder Shining Armor was so in love with her disguise.
 
"Ah- Little more, princess," Chrysalis bites her lip, rocking her hips and rubbing her shaft on the princess's tongue, feeling the pleasure welling up to climax within her. She pulls back, the tip sliding from Cadance's jaws, slipping from her distant gaze, and--
 
The warmth wells up in Chrysalis's body, erupting from her shaft in a steaming spurt of mare-cum. The hot seed splashes on the princess's face, spurting over her muzzle, dribbling from her face and mane in thick ropes as she desperately opens her jaws to try and swallow down her reward, the changeling reaching a hoof down and raising her trajectory some, letting the next creamy splurts drench Cadance's muzzle in entirety. "Ahhh, good princess," she pats Cadance's sopping wet mane with a dribbling hoof, taking a step back on wobbling hooves, her shaft still twitching and dribbling bits of mare seed for the urgently obedient princess to slurp up off the ground.
 
Cadance gazes up from her demeaning task, Chrysalis's cum dribbling from her lips, her tongue sticking out to catch the warm seed that dribbled from her mane. Her eyes are dull, lifeless - glazed over in green, as she's fallen completely under the changeling's spell, reaching a hoof between her own legs to idly clop as she stares up at the lovely bug-queen. "Now, I have a wedding to get to, princess," Chrysalis smirks. "Amuse yourself here for the time being." Cadance nods submissively, slurping over her lips for a hint of residual taste. "I'm sure I'll be seeing you again soon~"