This year’s annual Royal Celebration was supposed to debut with a new song to doubtlessly giddy and squealing fanfare, just like all of Pipp’s previous pop hits. A strong track record of hoof tapping tracks indicating that “Glowin’ Up” was set to be a chart-topping cracker, as all the commentators were in agreement that it would doubtless be the pegamare’s next number-one hit. The thought of such prestigious spectacle and flair always enough to put a happy smile on the perpetually pleased Pegasus’s snout, though her sunny glee had not stuck, as no sooner had she soared onto the stage had things gone horribly wrong.

Weeks of planning for the show falling flat, as instead of showing off her newest song, Pipp’s plan instead backfired massively, from the moment an unplanned pirouette caused the wires holding her aloft to malfunction catastrophically, sending the mare careening backwards straight towards her startled sister with a lurching yelp. The ungainly jerk lacking any of the important and regal composure the entangled equine had possessed previously, as she fanatically fumbled in an uncontrolled spiral, before with a hard plap her marehood met Zipp’s muzzle with a sucking slurp. The momentum barging Zipp’s head deep into her sister's unprepared birth canal, causing the pink Pegasi to let out an alarmed gasp, as in an instant she collided face first with the accommodating embrace of Pipp's plumply plush clam.

The velvety lips offering only a silky resistance as they parted with a yawning gape, as in an instant the erogenous folds were kissing against Zipp’s slender shoulders with a smooching shudder, leaving her entire skull shunted into the musky snare of her sister’s straining snatch. The slit spreading apart with a screaming shiver, as the unprepared pegamare’s core abruptly clamped down with an alarmed clench forcing the intruding pony ever deeper into her panicked pussy. The tight twat giving a throbbing twitch, as with a vaulting gulp Zipp rapidly began to slide into the cramped confines of the cosy cunt that had engulfed her now mewling mug. Zipp’s flailing hooves coming up too late to stop her egress into the snug reproductive abyss, even as a distraught Pipp desperately tried to push her pleading sister out of her aching gash.

The remorseless force of gravity along with the odd orientation the harness had left her in, leaving Pipp helpless to prevent her now squirming sibling from draining into her dilating depravity cavity. Each flustered fidget funnelling Zipp further into her fanny, As the sudden stretching left Pipp’s cheeks red with an unwanted arousal. The mare mentally screaming, unwilling to cause a scene that might damage her image, even as the pressure upon her loins grew too much to resist. Pipp barely able to hear Zipp’s whimpering opinion, as the stifled sputters of her voice, were little more than muffled meeps through the painfully taut expanse of her misshapen midriff.

To make matters worse, the cheering crowd had no idea that anything about this impromptu insertion was amiss, as for all they knew this was just some forgotten Pegasus royalty ritual for abdication. No one helping, even as all eyes stared transfixed at the debaucherous display, as Zipp was engulfed by her own sister's moist and glugging reproductive tract. The vagina inhaling an inch of wriggling flesh with each instinctual pinch, and before long all that remained was a pair of waving hind hooves and a tuft of twitching tail, before that too joined the packed away princess swelling Pipp’s surprisingly stretchy stomach. The prominent bulge in her belly bumbling about with a few jerking bucks, but it quickly became clear that the tucked-away heir to the throne could do little more than weakly quiver against the muscular sleeve encapsulating her. This worried writhing rapidly beginning to wane, as Pipp’s protruding barrel began to process the copious amount of frightened female flesh that had been fed into the now churning caress of her womb. The cervix squeezing close with a commanding squish, as Zipp’s more defined finer details began to lose their details beneath the shroud of pink coat encapsulating her. A matter of minutes all it took, before with a final spasming contraction and an audible crunch she unwillingly shushed her sister with a sloshing squirt of fresh femcum. The gush from her genitals carrying a few technicolour filaments of her liquidated sister’s fur, before the reeling impact of the orgasm, left her gushing her passion like a perverse in a spattering spray of effeminate jism. Even now she could feel the simmering grist of whatever bones that stubbornly remained grinding down into another quart of love-laced fluid.

The hamstrung humiliation already sinking in, even as debaucherous dollops of steaming mare honey drizzled forth in a string of coital convulsions. The initial emotional eruption already clinging to the inverted equine’s now sweat-drenched flanks, leaving a clammy sensation as it began to cool and grow crusty. Zipp now little more than a substantial cumstain glazing the onlookers beneath Pipp’s bound body, which was now swaying gently as she rode through the euphoric aftershocks of her live-streamed sexual gratification. Everypony in Zephyr Heights doubtless tuning in, only to witness the unexpected upstart, and Pipp was positive that she was going to be barraged by the paparazzi and their questions the moment she was cut down. A sad sigh snivelling out of her nose, as she doubted, she would live down this scandalous mishap, as the flash of cameras captured the unorthodox consumption to film. Pipp now wishing nothing more than to retreat to a hot shower, and try again when she was more presentable, though based on the annoyed look her mother was giving her, the Pegasus’s day was set to get even more unpleasant…

.......................................

A planned performance goes horribly wrong for Pipp, as a mistimed manouver in her choreography sends her soaring backwards and into earning an unexpected sister snatch snack...

A lemon done for my patron Gizmo, who wanted a story to go with the piece they got from jcosneverexisted. This one featuring Pipp and Zipp getting much more intimate then the latter would likely prefer. The kinky rope restrains and a bit of tape to symbolically remove before she started singing doing little to help the situation, as before anyone knew something was amiss, Zipp was little more then a sizable cumstain drenching the crowd below...

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