Dirty Sexy Pony

This takes place in Future!Twilight's (Twilight from Her Heart 2 and Her Fate 1 & 2) universe after she returned from warning her past self in Her Fate 3 (before that timeline collapsed, at least).

Dedicated to Bloodwolf432 because I just can't stand to disappoint my readers, even slightly. I hope this makes up for disappointing you, I really do!

The great throne room within the Canterlot palace was dark, save for the glow of lit candle stands placed strategically along the floor and the flickering of torches on the wall, as well as the pale moonlight that poured in through the stained glass windows. Instead of the once noble and enlightened ambiance that had shone so brightly, only debauchery remained.

"Master, can we?" Luna moaned, enjoying the feel of her sister's lips brushing against her neck.

"You're so impatient..." The dragon chuckled. He let out a soft moan as the rough flat surface of Twilight's tongue brushed against his dick head. Sitting at his feet she tilted her head and lapped up the milky beads of liquid eagerly, much to both of their enjoyment. "Fine, then..." He cooed and twitched when the unicorn pony began focusing her attention entirely on his tip. "...go ahead. But you won't get...mmmm...any pity if you break your pet."

"But Master," Celestia purred as she stroked her tongue up Luna's dark horn, "what would be the point of a pet if you don't break it?"

"Heheheh..." The scaled creature barely acknowledged the alicorn's comment as he was slumped low on his throne, both of his hands pressed on Twilight's head as she engulfed his entire length down her throat. The dragon's eyes remained closed and his lips curled into a smile while Twilight desperately squirmed and writhed, gagging and unable to breathe.

Unconcerned by her student's plight, Celestia turned her attention and made her own wicked smile toward her own pony pet strapped face down to the tiled floor with its eyes covered and mouth gagged. Salivating at the tantalizing morsel before her, the sun princess shivered when Luna leaned in and lapped up her dear sister's drool and parted her lips when she dipped her tongue between them. After sharing a moment of their love with one another, the two alicorns broke their kiss and exchanged knowing, hungry glances.

"So, who will have the honor of being our pet's first?" Luna asked with barely contained excitement in her expression.

"I think it's your turn, Luna. I did after all get to be ravaged by Master before you." She lightly bit her bottom lip, remembering the experience and whipped her tail back and forth as a drop of her wetness ran down the interior of her thigh.

"But I couldn't, Tia!" Luna playfully pouted, "You are the older sister, after all."

Celestia smiled and caressed her cute little sister's chin softly with her forehoof. "That may be true, but I know full well how you love to fuck while being fucked."

The princess of the night nearly swooned right then and there, blushing heavily under the other alicorn's strong gaze. "Mmm, you spoil me, dear sister."

"Only because Master opened my eyes to how much I love you." Celestia replied teasingly. Their lips met once more, however briefly and with a superficial chasteness, as Luna then walked over to their pet, swaying her flanks seductively as she did so.

Her horn glowed for a moment, lifting up a harness that laid on the floor between her hind legs and wrapped the straps around her thighs and flanks. "Master!" Luna called out in a loud whispered voice. Her heart began to race as she rubbed her hoof over her pet's hourglass cutie mark and brought her waist close to his. "Master, please watch your dirty Luna play with her pet!"

"Hmmm? Yeah...sure, I'm...I'm watching!" The dragon's deep voice called back and echoed against the marble walls and high ceiling of the throne room. He was distracted as Twilight was now bouncing up and down, spearing herself with his dick while resting her head on his shoulder, tongue lolling out of her mouth while her mind was blank with pleasure.

"Oooooh! Luna trembled at the thought of her beloved master gazing upon her as she began pushing into her pet. Hearing its muffled groans sent shivers up her spine as the strap-on continued further into both of their tight holes. "Aah!" She gasped with a smile as her end rubbed more and more against her maddeningly swollen clit.

"Uuuurghhhmmmph!!" The pet cried out in pain, causing Luna to pull out part way before slamming her hips to drive the dildo deep into his ass just to bathe in his scream. "UGHHHHMMMMPPHHHH!"

"TIA! Please! I want you in me soooo bad!" Luna shouted out in a throaty manner.

Appearing behind the smaller alicorn, Celestia stood on her rear hooves and pressed her weight against Luna as she continued to slowly thrust her hips into the brown coated stallion under her. "Hmmm...beg for it." Celestia commanded in a husky voice.

Luna growled and nickered, slowing her tempo even more but giving deeper, harder thrusts. "Please, sister..." She whined and looked over her shoulder to Celestia with her eyes half-lidded. "...I need you inside of me!"

Unable to restrain her boiling desires any longer, Celestia pressed the tip of her strap-on—haven already put it on before approaching—against Luna's beautiful puckered rose, which moved enticingly back and forth as she continued her assault on their still-screaming pet stallion. Without warning Celestia pressed the plastic into her cute little sister's flesh, filling it to capacity and earning a howl of pleasure which became muffled as they joyously entwined their tongues once more.

Their happiness continued on like this forever.

Author's Note: Alternative Title: Obligatory Time Travel Story Reference.