Coming To Terms With The Monster Within

Luna woke up without any intrusions from her sister. The breakfast was cold, but she didn’t mind. Without Nightmare’s presence, the princess of the night was able to get much of her delayed reading done. Her mind wandered to the jet-black mare – had she been too rude? Luna groaned as her head collided with the desk, trying her best to keep her emotions stable. “Damn it all.” A magical ping alerted her. “About time, ‘Tia.”

There was only a small slice of cake, and a fork beside it. The scroll appeared seconds later, floating into Luna’s hooves.

“Dearest Luna, I know it’s not the normal time that I would send you a sweet, but this is the last of the cake until who knows when. Remember what I said the other day, my sister. Don’t do it for Equestria – do it for you. You deserve some kind of apology for all of the pain Nightmare Moon has put you through. Do try to be gentle, though. She apologized to me last night in a rather, ahem, steamy dream, I will tell you more about it in-pony tomorrow, if you’d like. Just know that there is a compassionate mare underneath that intimidating exterior.

~ Love, Celestia.”

Luna’s left eye twitched as the thought of Celestia and her imaginary friend having sex ebbed into her mind. No, no, no. Just no. The scroll was crumpled up and tossed to the corner of her room. “To Tartarus with being kind! Nightmare will enjoy it no matter what transpires.”

Luna began absentmindedly eating the cake while her eyes scanned through the ink pages of a large volume. Unbeknownst to the princess, with every bite that she ate more and more of her sister’s potent aphrodisiac worked its way into her bloodstream. Unable to ignore the abnormal heat in her nethers, Luna slammed the book shut and trotted to her bed. She laid down on her back, allowing her hoof to travel down past her teats to her engorged nub of flesh.

With one hoof on her sensitive nipple and the other against her slightly swollen flower, Luna began her gentle assault. She quickly came to a short, pleasant orgasm, though she desired more from her dampened hooves. “Luna… would you like some help?”

A midnight black body rose up from the comforter on the rug. Luna let out a stifled scream as Nightmare rested her body down on the large mattress, which dipped down to accept her weight. The mare brought her dark hoof to Luna’s chest and smiled, showing her blunt fangs. “Y – yes.” Luna said, blushing.

“As you wish.”

…

Celestia silently appeared in Luna’s quarters, already in her ethereal form. Unable to pleasure herself and yet feeling the full effect of her arousal was torturous to the regal mare, but she had to make certain that Luna didn’t get hurt. She fazed through the door and accompanied herself with the floor, taking a seat in the far corner next to what looked to be a ruined painting. As Celestia’s rump touched the rugged floor, she saw Nightmare sliding her tongue up the length of Luna’s horn, coating the grooves of it with her saliva. The smaller blue mare let out a gasp in response as her horn shot out a spark of azure magic into Nightmare’s mouth. She moaned, sending deep vibrations around the horn, forcing Luna to cry out in ecstasy.

“N – No…” Luna called out as Nightmare’s mouth encompassed her horn all the way down to her skull, far past the vibrating metal clasp. “Stop, please – I can’t – mmn!” Another moan escaped her mouth as Nightmare pulled away with a vulgar pop. “Wait, I – ooh… wow.” A dark hoof traveled down to Luna’s belly, ticking her fur and further feeding the need growing inside of her. Nightmare’s warm touch graced the princess’ clit; Luna purred with delight. The dark hoof moved in tantalizingly slow circles as the princess squeaked and moaned, doing her best to stifle her screaming. Luna grabbed at her hair, ruffling and pulling at it violently as her body fell numb and she sang out, reaching her peak and enjoying the momentary euphoric sensation washing over her that came with it.

The princess of the Sun eagerly watched as Luna writhed and twitched in pleasure. Nightmare Moon wrapped her hoof around Luna’s back and another behind her head, pulling her into a kiss. The princess’ tongue twirled in circles around Nightmare’s own, tasting her own sweet magic on the mare’s mouth. The dark alicorn slowly laid down alongside Luna, their lips still touching. Nightmare Moon slowly pulled away, forming a bridge of saliva that connected the two mares together at the lips. She watched as princess laid there, gasping for air and smiling.

After noticing that Luna had caught her breath, the larger alicorn bent down and touched her lips to Luna’s again, then playfully bit at her lower lip, causing Luna to giggle weakly. Upon pulling away from the embrace, Nightmare said, “We are nowhere near done yet, my dear.”

“I wouldn’t think of such a thing.” Luna smiled, still panting lightly. Even in her airy form, Celestia felt a deep blush form on her cheeks. Nightmare laid down on her back, uncrossing her legs and exposing her moist sex to Luna. Her head fell lazily off the bed, directly across from where Celestia was sitting. Nightmare winked to the invisible princess, eliciting a silent shriek from the spectral mare.

How did she…? The regal mare watched as her sister laid down atop the dark body, head down in Nightmare’s nethers and rump directly in front of the dark alicorn’s muzzle. Nightmare smiled once more, exposing her fangs to Celestia and raising her brow before delving her tongue into Luna’s slit in the most vulgar of fashions.

Celestia watched as the two ponies bodies slid together as they pleasured each other with their skilled tongues. All is going… well, from the looks of it, the princess thought with a mental sigh.

With a grin, Nightmare pulled her tongue out of Luna and slowly arched her neck forward, towards Luna’s belly. She latched onto her small breast, biting down hard enough to entice a shriek out of Luna. A bolt of mixed painful pleasure struck her belly. “Not so hard,” Luna whined. “That hurts!” She looked down, locating Nightmare’s erect nipples amidst the sea of black fur. Her teeth promptly wrapped around one, as if to give her a taste of the pain the larger mare had caused as her cobalt hoof idly played with the second mound of tender flesh. Nightmare groaned and chuckled before letting out a deep moan.

The dark alicorn bucked her hips upwards as she loosened her jaw enough to swirl her tongue around Luna’s sensitive areola. The princess licked at Nightmare’s clitoris, teasingly circling and flicking her tongue against the pink flesh. Nightmare brought her hooves down to the bed and began drawing circles around the crescent moons on Luna’s firm plot. Luna moaned again, the mare’s actions further pushing her towards another climax. “If you keep this up, I’m gonna…”

Nightmare halted the movement of her hooves and said, “Well, we can’t have that just yet, now can we?” She slowly sat upwards, her jet-black wings springing into the air, fully erect. Celestia felt her will continue to diminish as Luna started to preen Nightmare’s large wings, biting and licking at the appendages, all the while grinding her crotch against Nightmare’s hind leg. Luna’s chin pressed against Nightmare’s collar as she reached her hooves behind her barrel to grab hold of her soft flanks, kneading the plump flesh. “You’ve – ah – much gotten better at this, Luna.”

Luna smiled and closed her eyes as she continued gently nibbling at the flight-granting limb. Nightmare cooed, singing out in uncharacteristically shy squeaks and sighs as Luna switched from wing to wing, gliding her tongue across Nightmare’s collar bones as she transitioned between the two. With Luna’s azure horn mere inches from her muzzle, Nightmare wrapped her tongue around the blunt tip and began slowly bobbing her head up and down, progressively swallowing down more and more of the boney protrusion. The princess of the night opened her eyes, taking a sharp intake of breath as she was graced with the sight of a small, barely noticeable, golden outline of a pony in the corner of her room. Let’s give our sister a show to remember, Luna. Nightmare said telepathically. Luna’s blush darkened further as she smirked up to Nightmare, tacitly agreeing. Who would’ve thought that our sister, of all ponies, was a voyeur?

The aforementioned princess wasn’t aware that her spell had begun to fade. By the time her concentration diminished enough for her form to become visible, her body had begun to physically reconstruct itself. In an instant, as she continued to grind her crotch against her hoof in vain, she felt the incredibly hot wave of relief wash over her for the first time; Celestia shivered and then stifled a scream as she realized what that meant.

Horseapples! Celestia thought. Her form disappeared in a flash, leaving both Luna and Nightmare giggling lightly in a temporary fit before they continued on with their passionate foreplay.

Luna crawled towards Nightmare, who was still chuckling lightly. Impatience and lust lined the princess’ eyes as she pounced the black mare onto her back. Their mouths locked once again, tongues passionately twirled and rolled about, fighting for dominance in a beautiful dance. Nightmare hugged into Luna and rolled over, pressing her hooves against Luna’s chest, displaying her superior strength. As the princess tried to playfully fight her way into dominance, midnight black hooves firmly shoved her back down to the bed, where she stayed with a confused look that quickly turned into a stupid grin. The larger mare sat atop Luna’s spread legs, pressing their sexes together, tantalizingly grinding back and forth at an excruciatingly slow pace.

Nightmare and Luna both let out a loud, throaty growl of satisfaction as the dark mare slowly began sliding her hips against Luna’s with ever-quickening speed. Normally it had been a tacit agreement between the pony of her choosing that she would be the dominant mare, however Luna generously submitted to Nightmare. It would be a new experience, something to learn from, and Luna loved learning. The two mares locked lips again as their fair sexes rubbed against each other in a sticky and wet, loving embrace.

Luna and Nightmare rocked their bodies back and forth, slowly and disorganized at first, though they quickly built a pattern of grinding and thrusting. As the alicorn princess opened her mouth and let out a moan, Nightmare bent down and hungrily bit at her lower lip, as if asking permission to continue their dance. The dark alicorn slid her tongue back into the moon guardian’s mouth, and Luna was all too happy to comply and join in the sweet tasting pas de duex. Nightmare pulled back, slowly, as her back arched while her hooves pressed against Luna’s chest, grasping at her soft fur, and then to her own mane, where her hooves played wildly at her ethereal hair. The princess found her hooves traveling up Nightmare’s body to her barrel, her firm muscle flexed and relaxed as she took in deep breaths, a sign of her nearing climax.

The alicorn princess bucked her body up and relocated her idly fondling hooves to Nightmare’s plot and began massaging her crescent moons, which adorned her shapely flanks. This pushed the dark alicorn ever closer to her orgasm. Her bright feline eyes shot open as she gazed lovingly down to the nocturnal princess, who returned the look with a blushing smile. “Luna, I – ah,” Nightmare fought against her tongue, trying to form a coherent sentence. “Want you to… know that I… love you with – mmn… all of my being.” She said in between frantic breaths of air. And then she came, her form shaking and quivering, pushing the princess into her own climax.

As the two mare’s screaming and moaning began dying down, Nightmare wrapped her hoof around Luna’s midsection and nuzzled against her chest. She felt her body begin shut down, having spent her limited source of energy in an extravagant love making session with the one mare that she loved. She bathed in the afterglow, riding out her orgasm as long as she could. The dark alicorn, mighty bringer of eternal night, Nightmare Moon looked to Luna with tears in her eyes and whispered, “Goodbye, Lulu.” And then she was no more. Her body disincorporated into a starry blue cloud that encompassed Luna. The princess glowed as her body was surrounded by the dark azure magic. A sudden drowsiness fell upon Luna as she shut her eyes and instantly fell asleep in the cloud of cerulean magic.