As Old as Your Omens

Luna teleported into their room — the room was inaccessible by hoof, and a permanent semi-permeable shield would harmlessly deflect any but a very select list of ponies who tried to fly or teleport in. Celestia had stopped crying and was lying on her side on the bed, staring out the window.

“I’m sorry,” said Luna.

“I liked your surprise,” said Celestia, her voice cracking.

Luna climbed into bed behind her sister, wrapped her forelegs around her shoulders, and pressed her face against the back of her neck.

“I want a foal,” said Celestia. “It’s been so long.”

“We cannot do that for you,” said Luna. “But we can be a stallion to you. We know that’s what you prefer.”

Celestia chuckled. “Well, that’s what Cadence and Twilight were for, isn’t it? To be my foals, I mean. Not to be my stallions.”

“Oh, We know what you meant. But they grow up so fast,” said Luna, nipping at Celestia’s ear. “You should find a new protégé.”

“That is a good idea. No more alicorns, though. Five is enough, for now, I think.” Celestia rolled onto her back, four legs up in the air bent playfully. “Maybe a colt, this time. For variety.”

Luna’s eyes got a faraway look. “And lo, a colt shall rise from amongst the unicorns. And he shall grow into a mighty stallion. A crown shall be upon his head, and wings upon his back. And the nations of Equus shall tremble beneath the pounding of his hooves.”

Celestia rolled her eyes. “Please, sister, tell me that that is not a real augury.”

Luna flashed a playful grin and pecked Celestia on the cheek. “You are right. We made it up. But speaking of pounding.” She rolled onto her back and spread her hind legs. A tight pair of balls and a slim, elegant sheath nestled there, their glossy skin an inky midnight indigo.

“Oh, sister,” purred Celestia.

“If you kiss Us, We will let you taste it.”

Celestia giggled. “I don’t know, that sounds like a win/win for you. What do I get out of it?”

Luna pressed her sister back on the bed and locked her mouth on hers. Her tongue slid into her sister's mouth, caressing and probing. Celestia moaned into Luna’s mouth. Hooves slid down her barrel, slowing as she neared her sheath. Luna’s new cock rolled out, flopping across her barrel. Her sister’s gentle, leathery hooves danced over the shaft, sending sparks of pleasure through Luna’s body.

Oh, it was fun to have a cock.

“Sister, I need this,” moaned Celestia.

“I know you do, you cum-hungry little whore,” purred Luna.

Celestia shivered. “Luna! No one would dare speak to a princess that way!”

“Except another princess. Your stallion lovers have been gentle and considerate, in the past, I suppose.”

Celestia bit her lower lip and nodded.

“Careful with the royal person. Respectful of your station. Attentive to your needs.” Luna straddled Celestia’s barrel. Her cock, now hard as steel, reached from sternum to collar bone on the larger mare’s chest.

“They have been. Even the crudest soldier treated me as though I was made from spun glass.”

Luna laughed. “Well. We know you, sister-whore. We know your secret dreams. And the darkness of the moon still roils in Our heart. We demand that you feast on the cock of the night.”

Celestia rolled her eyes to look at the pulsing shaft resting on her chest. “The cock of the night? Seriously?”

Luna waved her forelegs in the air dramatically. “Yes, the Cock of the Night!” She pushed her hips forward. Her flare bumped Celestia’s lips. The older sister groaned and opened her mouth wide, letting it slip into her warm, damp mouth. Her tongue moved against the flare. Luna balanced herself on the headboard, luxuriating in the pleasures of her sister’s mouth, letting Celestia get used to the feeling of worshiping a dick again after so many centuries. She couldn’t help but admire her own cock — mottled black and indigo, gleaming in the dim light of the room’s gas lights. The veins pulsed ever so slightly beneath the skin. And Celestia — oh, how wonderful her dignified face looked, debased by the black member spreading her lips into a wanton ‘O’. She had hooked her hooves over it, holding the shaft close to her barrel as she sucked.

“Do you like the flavor, sister-whore?” hissed Luna, grinning lecherously.

“Mmm hmmm!” Celestia nodded, eyes looking up at her, sweet and saucy, as she sucked.

Luna grinned a grin that would have done Nightmare Moon proud. “Would you like to choke on it?”

Celestia hesitated, then nodded again, eyes pleading.

Luna began to thrust her hips, lean muscle working beneath her inky coat. Her cock began to piston in and out of her sister’s mouth. The part that had been inside of her emerged gleaming with spit. She went slowly at first, then thrust deep, all at once, making her sister gurgle and thrash. She laid into Celestia’s mouth, making the bed creak with the force of her thrusts. She could only go so deep with Celestia on her back like this, but the loud choking noises her sister made every time her flare hit the back of her throat were so wonderful she couldn’t bring herself to stop. She went on, thrusting recklessly, until Celestia’s hooves thumped on her belly, pressing her away, begging for mercy. Luna pulled out and looked down at her sister. Celestia was flushed, strings of drool dripping from her lips onto her neck.

“And how was that, sister-whore?” purred Luna.

“It’s what I need. It’s what I deserve,” croaked Celestia. “More. Please.”

Luna chuckled. “You don’t get to decide these things. Lie with your head over the edge of the bed, sister-whore. And take a deep breath.”

Celestia nodded and pushed herself around, matronly belly and teats jiggling, until she was lying across the bed, wings spread, head dangling. Luminous hair floated around her face. Luna wiped her cock on a hoofful of it and straddled her sister pointing backward, with the elder sister’s face between her thighs.

“Open your facecunt for the Cock of the Night!” commanded Luna.

“I think you might be going a little overboard with the dirty talk, little sister,” said Celestia, chuckling and caressing Luna’s dick with her hooves.

“Nonsense! Facecunt! Cock of Darkness! Now!”

Celestia slid her tongue out and drew it slowly around Luna’s soaking wet flare, tasting Luna’s pre and her own spit on it. Luna, in no mood to be teased, grabbed Celestia’s mane with her magic and tugged it hard, dragging her across the bed and ramming her dick into her throat. Wet, soft flesh closed around her, tight and marvelous, contracting whenever her sister swallowed. The mare’s swan-like neck was able to take Luna’s entire length so that soon her balls were pressed against her sister’s nose.

“Mmmmnnnggghm,” moaned Celestia, throat vibrating around Luna’s cock.

“Oh, yes,” said Luna, wrapping her forelegs around Celestia’s thighs. Her hooves slid down those magnificent haunches and pulled her cheeks apart so that she could look at her sister’s juicy pussy lips and fat ponut. “Oh, your pudenda promises such delightful pleasures! I must avail myself of it.” Luna buried her face between plump white thighs, nosing at the fat, sopping wet lips of her sister’s cunt. She inhaled the rich, musty scent. Luna lapped at her teats and at the outer lips of Celestia’s pussy, but she refused to kiss inside. The older princess’ clit twitched, winking her white pussy lips open, but Luna simply ignored it, taking pleasure from her sister and offering none in return. Pleasure glowed throughout Luna’s body, radiating from her brand new cock. She a tightening feeling in her balls, unfamiliar, but she quickly realized what it meant. She pulled back, popping audibly out of her sister’s mouth, gasping, trembling.

“You stopped!” complained Celestia, tugging on Luna’s cock with her hooves and her magic. “Why did you stop?”

“We are in danger of cumming before We have fully satisfied Our lust.”

“Well. We can’t have that. My pussy and my asshole are every bit as hungry as my throat, you’ll find.” She reached down to rub at her juicy cunt with both hooves. “But this needy baby wants all of your cum.”

“Does it, now,” said Luna, getting off the bed and levitating over a jar of sexual lubricant. Her horn flickered as she cast a magic detection spell. “Celestia, you are not under the effect of a birth control spell.”

Celestia’s belabored gasp of surprise did not convey sincerity. “Oh, how silly of me! And I certainly can’t concentrate to remember one now. I haven’t cast one since little Twilight was a teenager, and then only for demonstration purposes.”

Luna sighed internally. She supposed she knew what she was getting into when she developed a penis potion that fired live ammunition, so to speak. She rose up onto the bed again, her cock bobbing over Celestia’s face. She tipped the jar out over it, covering it in clear and glistening goo. Excess dripped out onto Celestia’s face and neck. “You are playing a dangerous game, sister, tempting me so. Please cast the spell.”

Celestia giggled. “No. I will not.”

Luna growled. “I can spend in your throat instead, sister-whore. We believe We would find that quite sufficiently enjoyable.”

Celestia chuckled and rolled over on her front. She stood up on the bed, and pranced in a half circle, tail high and to the side. Luna gulped as her sister’s fat white plot came into view. Sunburst logos wobbled slightly as the flesh beneath them moved, placid but tumultuous, like a massive gelatin dessert. Stately curves arched with mathematical grace from her flanks to her crack, framing that thick-lipped, drooling pussy, and her pert, clean white ponut. Oh, how Luna needed to be inside of her sister! She poured the rest of the jar of lube out over her sister’s backside, making the fur glisten, and scrambled up onto the bed. She wrapped her forelegs around Celestia’s relatively slim belly and jerked her hips forward, aiming for her anus. Anal sex was the only hope for the monarchy. Polluting the bloodline with an incestuous foal… oh, it would be unthinkable!

Luna’s cock sunk into warm, silky, wet flesh. Celestia screamed with delight. That had been… too easy. Luna pulled back and looked down. She’d missed!

“Sister!” said Luna. “You tricked Us!”

“You want it too,” said Celestia, smirking over her shoulder at Luna. “I can tell. A sweet baby pony to cuddle and call your own.”

“We do not!” said Luna. But her hips had a different opinion. They bucked forward, hammering her cock deep into her sister, making those massive, perfect cheeks rebound in epic ripples. Celestia’s pussy felt so good! And it was so deep! Her massive cock felt lost in its loose, sucking depths. It enfolded her like a hot, silky blanket of love, smothering, hugging, pulling her deeper and deeper in.

“Oh, don’t stop!” howled Celestia. “Oh, your cock is pushing on my clit! It feels so good! I’m gonna cum! I’m gonna cum!”

Luna reared back so she could look down her barrel at her sister’s backside. She reached out with her magic, gathering up the cocktail of lube and mare goo dripping from her sister’s pussy and smearing some on her magnificent white ponut. Her indigo glow pulled the rosebud open, showing the pink inside. She could see her cock moving through the thin wall between Celestia’s pussy and her anal cavity. Luna gasped with pleasure. She couldn’t stand it! The view inside of her sister’s ass only heightened her pleasure! She wanted to pull out, to jam her cock up there, but her sister’s pussy felt so good that she couldn’t stop fucking it!

Celestia screamed. Luna cursed herself — she knew her sister loved having her asshole played with! The older, larger mare jerked and bucked, howling with pleasure as she came. Her pussy, seconds ago loose and inviting, clamped down with muscles strengthened by bearing dozens of foals. Luna’s cock, squeezed past endurance, began to spurt.

“No, no, no!” Luna wailed. The mind numbing pleasure that washed through her body mixed with a satisfaction she’d never known — the satisfaction of breeding a mare, filling her with your seed, claiming her by giving her a foal.

NO! Luna willed herself to pull out. Her cock flapped wildly, spraying cum across Celestia’s ass. She grabbed the shaft with her magic and plunged it into Celestia’s ponut, hilting it deep.

“Oh YES!” cried Celestia.

“Celestia, I love you!” screamed Luna, finally letting herself go. Her balls sprayed spurt after spurt of cum deep into her older sister’s guts. Pleasure wracked Luna until she was left shaking, hooves on Celestia’s ass, drooling on the small of her back.

“We did it!” cackled Luna. “We came in your ass! There will be no royal bastards tonight!”

“Oh did you, my dear?” said Celestia, wiggling her ass playfully. “Why don’t you pull out and have a look?”

Luna’s heart sank. She drew back, slowly, so as not to hurt her sister. Inch after inch of limp indigo-and-black horse dick slid out of that beautiful white ponut. The flare popped free, leaving her gaping, letting a trickle of cum roll down her taint to join the flood dripping from her pussy.

“Oh no,” groaned Luna.

“You cum a lot, dearest sister,” said Celestia, flopping on her belly on the bed. “But don’t worry. I’m not in heat. The chances of conception are very slim outside of my cycle.”

“Very slim, but not impossible,” groaned Luna. “Celestia, how could you be so irresponsible?”

Celestia smirked. “Life finds a way, my dear sister. Now. Do you have a dose of that potion for me? I feel that the ass of the night needs a good pounding.”