It was a beautiful day in Equestria. Birds are singing, flowers are blooming, and on days like this, previous princesses like Celestia and Luna lay beside each other on a picnic blanket sprawled out on top of a hill, just past the treeline of a large forest– that was luckily inhabited by tribes of bucks and does instead of Manticores and Timberwolves– that spanned a major area at the base of Canterlot Mountain, where they overlooking great plains that go as far as the eye can see, dotted sparsely with patches of varies flowers and small ponds connected by a single winding river.

“I cherish these moments we spend together,” Celestia told her sister softly. Her spotless ivory fur was bare of any royal regalia as one of her perfectly preened and cleaned wings rested over the smaller mare’s back, hugging Luna’s dark blue body against her side as the both of them watched nature.

“As do I, sister,” Luna agreed, also completely in the nude as she snuggled into Celestia’s side.

A giant wolf the sisters know as Bound gave a low growl of agreement as well, curled up around their behinds and resting his chin on crossed paws. They quietly enjoyed each other's presence for a while, Bound listening as the sisters chatted and giggled amongst themselves.

After a while, the sun reached its highest point in the sky, and so Bound’s tip peeked from his sheath automatically, conditioned to come out every day at noon so that Dinky may return from school and pleasure it. Dinky was not here this time, so he came up with another idea.

Slowly, he stood, being careful to not bump into either of them. He positioned himself overtop Celestia, and carefully laid himself on top of her, being sure to put as little weight as possible on her and not trap her mane between them, his left foreleg draped around Luna’s shoulder as his other hooked around Celestia’s chest. In the time it took him to position himself, his penis had already become rock hard, and so he prodded Celestia’s royal marehood, to which she spared nothing but a short glance back as she listened to her sister geek out about stars and constellations.

Slowly, his tip entered her, and she emitted a gasp so soft it was inaudible to creatures without highly effective ears as he slowly pushed into her, his hindlegs only needing to take a small step forward before he was up to his knot in royal pussy. He felt her shift her hindlegs the slightest bit to accommodate the cock currently stretching her insides.

In order to pleasure his ruler as much as possible, he incorporated a technique Dinky taught him, and slowly dragged his tongue from the base of her long and very slightly tingling majestic horn to the tip, causing her to let out a slightly more audible gasp as soon as his tongue touched down, and bit her lip to stifle a moan as he moved his tongue up and down and all around her horn as he slowly and sensually pulled his rod out until only his tip was left inside her before sliding it all the way back in, beginning to slowly thrust into her.

After a few minutes of slow rutting, his tongue left Celestia’s magical extremity, leaving it dripping with saliva as he sped up the slightest bit, his tail swaying from side to side behind him. His head proceeded to rotate towards Luna’s horn, and his tongue shot out to wrap around the base of her slightly smaller horn, causing her to interrupt herself with a very much audible gasp, before he began pumping his tongue up and down her horn, and she was left open mouthed and speechless for a few moments before she resumed speaking, slightly tilting her head towards the wolf.

As his crotch fucked Celestia on auto-pilot, Bound shifted his attention over to the smaller alicorn. With knowledge garnered over many discussions with Celestia, his collar lit up, and multiple semi-transparent tentacles grew from the ground, and all at once, slowly wrapped around her forelegs tucked up under her chest and up around her withers, binding them against her, shifting from the color of his aura to the color of hers once they touched her and making her shiver from how cold they were.

Next, six more rose beside Luna’s flanks, three on each side, rising a fair bit above her before curving and diving back down, hooking under her body just in front of her thighs and wrapping around her barrel at least twice, before lifting her plump rear high enough for her rotund booty to jiggle the slightest bit and her hindlegs to dangle just above the ground, which angled her body to be at least forty-five degrees.

As that happened, Luna kept trying to continue conversing with her sister, constantly stumbling over her words and replacing innocent words with similar sounding sexual terms as another tentacle wrapped its tip around her dock and raised her starry tail high into the air, before it continued by slithering its slimy self over her right flank, causing Celestia to shudder from its cold touch as well, winding and sliding over Luna’s ponut before snaking over her left flank, then under her, sliding over the nipples of her puffy teats before doing a loop and snaking over itself as it made its way behind her, slowing to a stop as it laid on top of her sopping wet pussy.

By this point, she was gazing past Celestia with starry eyes, a heavy blush adorning her cheeks while a dumb and wavy smile threatened to split her muzzle in half, and her ears drooping almost all the way down to her cheekbones as Celestia watched with an amused smirk, her own cheeks lightly dusted red.

“Hey boy?” Celestia called behind her. “Turn up the intensity for her, will you?”

All the tentacles holding her suddenly tightened, making Luna’s eyes widen, before her jaw dropped and released a loud and throaty groan as the tentacle covering her slit moved to the side to make space for three triangle patterned tentacles that suddenly rocketed into her snatch, stretching her small hole greatly and creating a bulge up the bottom half of her belly as they quickly twirled around each other and made their way into her womb, only stopping once they bumped against its far wall, then remained mostly still as they idly continued to twirl.

“Feeling good, Lulu?” Celestia asked softly. Luna merely gave a single curt nod and a spark from her saliva spattered horn. Celestia giggled and nuzzled her cheek for a moment, then watched as her eyes rolled back into her head and her tongue lolled out as the three tentacles began to rapidly pull out to their tips and slam all the way back in her womb with loud squelches, her right hindleg beginning to twitch and kick, when two more tentacles suddenly grew behind her and quickly made their way into her tailhole, inserting themselves deep inside her, all the way to her stomach, while a final pair appeared in front of her and slipped into her mouth, sliding all the way down her throat and meeting the other two in her belly, tying their tips together before matching the speed of the three in her pussy, going in and out like a saw going back and forth on a fallen log, before Celestia looked up at Bound with a soft grin.

“Bound?” She gently called, making him look down at her. “Does this spell allow your tentacles to dispense tangible wolf sperm?” She asked.

“It does not, unfortunately. Only a fake ethereal liquid simulating it,” he answered. “Why do you ask?”

“Well, I was hoping you could impregnate her– with her consent of course– alongside myself,” she explained, looking back at Luna’s blissful face as it rocked back and forth. “Perhaps instead I can impregnate her?” She wondered, tapping her chin with a hoof. “But to do that, I would either have to cast a spell to turn me entirely male or a spell to merely give me male genitalia, though both of which require removing the female bits…”

“Have you thought of transforming into a hermaphrodite?” Bound asked.

“There's an idea, but I haven't learned that spell," Celestia explained.

“I would bet that Princess Cadenza knows it," Bound stated. Celestia giggled as her hoof lowered back to the ground.

“Of course she would," she agreed. “I cannot believe I didn't think of that.”

“Then shall we consult her?” Bound asked.

“Yes," Celestia agreed. “But after this, of course," she added, emitting a short moan before laying her head onto the grass.

“But you would want to be pregnant at the same time as your sister, would you not?" He asked.

“If we visit Cady within a moon’s time, the difference between the start of our pregnancies should be so miniscule that it is irrelevant," she told him.

“Good, because I am approaching my limit," Bound said, accelerating as he began panting.

“Oh my…" She moaned, closing her eyes. “I am as well. Make haste, and fill my womb with that canine cum of yours.”

“It would be my pleasure," he told her, his hips now a blur as they plapped loudly against her crotch, while the tentacles jackhammering Luna matched his growing speed. He growled and bared his teeth, screwing his eyes shut as he rose, his straightening hindlegs lifting her flank into the air as he held her to the ground with his paws planted firmly atop her withers.

Soon, he barked and rammed his cock into her as hard as he could, making her yelp in surprise as his jaw clamped down onto the base of her neck, luckily missing anything important as his teeth sunk into her pristine white fur, before she moaned loudly as his knot popped into her and his tip broke into her womb, his throbbing cock and pulsing balls depositing ropes after ropes of his thick doggy seed into her, making her belly inflate rapidly until she looked like she was heavily pregnant.

At the same time, Luna eyes teared up as she let out a guttural moan around the tentacles, the tentacles holding her up squeezing as hard as they could without hurting her, and the ones rutting her various holes stopped as deep as they could in her, pouring loads of ethereal golden seed into her, ballooning her belly out to match Celestia’s, and the mostly transparent liquid spurted out of each hole before the tentacles stopped, leaving her muzzle and rear dripping with faux cum as her luckily uncovered nose rapidly inhaled air.

“I… I will return home for the night,” Bound started, having carefully extracted his teeth from Celestia’s neck. “We shall then pack the next day, and overmorrow, I will meet you in the Castle at dawn, then we shall take the train to the Crystal Empire.” He quickly licked her wounds clean. “I request that you leave your regalia behind, so that we may travel as if we were a pack of common ponies.”

“I concur,” Celestia agreed, opening her eyes then glancing at her sister, confirming that she was okay, although a little out of it. “And I shall acquire Luna’s consent the next time we are both awake.” She stated.

Author's Note

requested by PuzzleMaster98, proofread by Bronycommander

You can commission me to write something for a dolla, although i'll probably only write it if it has topics related to what i've written in the past, and if it's more than a simple topic, like 'Bound fucks (insert OC name here)', you'd have to contact me on Discord so we can hash out the details (\o/#5964)