Equestria into Darkness - Return of Nightmare

He remembers it like one would a dream, looking back upon his previous life as some distant memory he needed to wake up from. He stirs awake and gets to his hooves, standing upon the crumbled stone, aged by a millennia, his new ethereal Mane flowing behind him with his tail doing the same, each displaying a vast star scape of a galaxy. He remembers coming here, in search of... somepony. Somepony he admired, greatly... memories returning, slowly at first, of the day’s events. The White Haired Pegasus, larger than most, headed out to the ruined castle of the two Alicorn Sisters, where SHE had been defeated and where he would find a way to bring her back.

The Memories were coming back quicker now, the transformation occurring only moments ago, how the ex-Pegasus discovered the remnants of the Dark Queen’s Armour, bowing before it and paying his respects to, in his mind, the TRUE ruler of Equestria... Only to then be seized by wisps of blue smoke, surrounding him quickly and dancing around his form. He is startled at first, but something about the Smoke felt right; and with almost a whisper the whirling smoke spoke to him, asking of his greatest desire. He did not answer but only to close his eyes and the smoke quickly shrouded the Pegasus’ form, only his silhouette, which visibly began to warp and change as a dark Aura surrounded him. The Pegasus having given into the darkness of his own volition, the smoke dissipating once the transformation was complete and reveals the now dark haired colt standing upon the crumbled stone floor. Finally opening his eyes to reveal the whites to be a Turquoise green, his irises, a deep blue and slitted pupils, like those of a snake, a deep sounding chuckle escaping his lips, fanged smile spreading over his muzzle, the Nightmare was reborn...

He takes a moment to admire his new form, powerful, dark grey wings folded and unfurled from his back easily, a silver-blue aura igniting his horn as he felt revitalised power flowing through his new host body... No... HIS body, the Pegasus had given in so completely that his and the spirit of Nightmare had merged perfectly into one. Upon this revelation, he found he now had access to HIS old memories, sifting through them until he comes across one of a Purple haired Unicorn. The mental image of the one pony that had successfully sealed him away before! It made his blood boil to see her smiling face in his mind, but calms when he looks further, a time travel spell, Interesting. A smug smile spreading over his muzzle and his horn ignites once more, getting brighter and brighter until it nearly engulfs his body completely and with a loud ‘Zap’ he was gone.

A brilliant white Flash occurs on the outskirts of Ponyville as well as a strange Vortex opening in the sky, a shadowy figure diving through before it closed and dark silhouette took flight into the night, and heading to the town hall where everypony was gathered. Silently he looked through a nearby window and surveyed the ponies inside, as well as his past self, standing in her former glory, being stood up to by that same purple Unicorn, declaring her past self’s name to be ‘Nightmare Moon’. Biding his time, he waits for all the other ponies to run in fear, now was his time to act; taking to his smoke form, he leaves a subtle message to his past self as she too takes to her ethereal form, and taking off into the Everfree forest, the Purple Unicorn and her friends in tow, heading to the Castle of the Two sisters himself and waiting there for his past self to arrive...

Nightmare moon was trying to stop the purple unicorn and the other ponies that were with her, but she remembers the request from the unknown force demanding to see her, she heads to the location, she was told to go to, she reforms from her cloud form to her physical form and shouts, "show yourself, I demand you, show yourself to your queen now!" she says demandingly, looking around to see if the pony would come out of the shadows, her guard up and ready to fight.

There was an odd atmosphere to the old ruin of a castle, it felt dark and yet... somehow familiar to the midnight black Alicorn Queen. A low resounding chuckle, echoing around her in reaction to her demands, “Ahhh... how nice to hear my old voice again, it really has been FAR too long, forgive me if I do not revel in the moment... Hm, Hm, Hm,” The voice says with yet another chuckle. Seeing that she was about to repeat her demand for him to show himself, he remembered enough about his past to know he didn’t like repeating himself for a third time, “Very well... Nightmare Moon, I shall come out of hiding...” he says, while his body materialises from the shadows, his dusky Grey coat, and flowing, Midnight Blue mane enough insight for the Dark Queen to hazard a guess of whom she was actually talking to, as the rest of the Male’s body emerges from the wall, his flowing tail also an indicator, “If you need more of a hint...” he says, a set of Translucent blue armour that mirrored hers appearing on his body, “Then maybe this shall suffice? My name is Dusk, and I am you Nightmare, what you will be two years from now in fact.”

She stared in shock but was impressed by what stood in front of her eyes, she walks a little closer to the Male Alicorn, "how could you be me in two years, what happens to me in those two years to make you travel back through time to speak with me? And WHY did you travel back through time to speak with me?" She asks with utter confusion and concern, not knowing what she had to do or what to do to prevent future events from happening, but she takes a deep breath, "well, it’s nice to see a loyal subject I suppose, and I think I like your name, Dusk" she smiled at him, pleased with this fine specimen of a stallion.

Dusk bows, before Nightmare in respect, “You’re words are too kind my Queen, But we must hurry, the reason I have travelled back in time, is to undo the events that are yet to happen, THIS very evening you shall be defeated by the very same elements of harmony that sealed you away in the moon, however, this time it is not Celestia that will do it, it will be the very band of six ponies that followed you here through the Everfree forest, for they are the physical embodiments of the six elements, you will not be able to stand against them...” Dusk says with seriousness to his tone as he explains what will happen in her future and his past, but soon a slight smirk spreads over his lips, “However... there is now a solution that you can utilise, that will make the elements useless...” Dusk says, bowing once more before her, “That solution, is to devour me my queen, devour me and absorb my magical energies, with it you will wield an evil power that not even the Elements of Harmony can possibly overthrow. “ Dusk says humbly, “But you must act quickly, as the element bearers will be arriving at the castle within the hour.”

She looks at the Alicorn in a surprise manor "eat you? Am I hearing correctly?" She shrugs and accepts "if you want me to succeed then I will eat you and I will reward you for your loyalty to me but just to be quick I will have to teleport you in my stomach" as her horn glows a flash of light happens, attempting to Teleport the male Alicorn into her stomach.

Dusk frowns at hearing this, his own horn igniting a Silver-Blue aura which cancels out Nightmare’s teleporting attempt, the Male Alicorn standing in place where he once bowed before her, a look of disappointment upon his face, “Sadly... you misinterpret my meaning, for this plan to work, you MUST devour me orally with only the use of levitation magic as an aid. Magic cannot be used as a shortcut. For if I were to be teleported into your stomach, it would not secrete the specific, magic infused acids needed to break down my body and convert it into magical energy. Put simply, your body needs to ‘go through the motions’ as it were.” Dusk explains calmly, trying not to display his disappointment in such a blatant shortcut.

She looks pissed off because she knows she has to rush, but she complies with the Alicorn’s wishes and starts devouring him head first as saliva overflows from her mouth trying to swallow him as hard as she can, having never eaten anyone as big as the Alicorn she is now, slowly working into her stomach.

Dusk has since knelt down before Nightmare, his armour evaporating to smoke, closing his eyes as he feels the warm saliva of Nightmare’s mouth, stretch widely around his muzzle and face, casting a spell upon his own horn to make it malleable like rubber, it bending back as his head is guided further into the Dark Mare’s jaws, staring down her throat as his neck and flowing mane begin to enter her mouth, having folded his wings back also as she continue making decent progress in getting him down. The experience of sliding down, his past self’s throat is... stimulating, the Pegasus he once was had dreamed that his queen would do this to him if he ever met her in real life.
Nightmare feels Dusk’s head and neck slide down her throat, noticing also how the male Alicorn tries his best to make it easier for her to swallow by standing once more and lifting his front hooves up into her jaws, though the added strain was painful, she appreciates the assistance, gulping around his front hooves and legs while his head empties out into her stomach, causing it to slowly bulge and swell, much like her neck and chest is with swallowing an Alicorn as large as she is. Another strong gulp and she manages to force his shoulders into her throat, feeling him slide further down her throat, she saw and felt the Pegasus like wings enter her mouth as she rubs her growing belly, a deep pool of acid already beginning to rise around Dusk, ready to digest the male Alicorn, "~Is that better for you? I admit; I’m enjoying this greatly, get ready to see the moonlight when you are fully digested. ~" She says, using telepathy to speak to her meal.

The insides of the Dark Mare were everything he had imagined, a Dark, fleshy sac, moist yet warm, with soft walls massaging around him as more of his body enters. The sensations felt bizarre but also very welcoming, as if he knew this was where he belonged, this was his purpose, a slight blush appearing upon his Dark grey cheeks, his hair and mane slicken down greatly with the mucus and saliva around him and feeling a new liquid pooling beneath him too, while outside his prized, impressive wings were slowly sliding out of sight, along with the barrel of his torso, into Nightmare’s jaws, and at last his hind quarters are levitated off the ground for ease of swallowing.

She sits down, tilts her head all the way back and gulped, feeling the rest of the stations barrel go down her throat, Working down his flanks as well, her stomach growling loudly, getting ready to accept the ‘pony’ that will soon be in its acids. Nightmare smiles, knowing she will be very powerful thanks to this ‘pony’ she is devouring, she seemed aroused by the sensation of eating another Alicorn alive, but happily carried on devouring him, until the rest of him was curled up in her dark stomach, warm saliva dripping from its walls and onto Dusk's head.
Dusk can’t help but groan softly within the warm and wet confines of Nightmare’s stomach, a portion of his mane covering his eyes and dripping with saliva, the rising pool of acids up to his chest as he feels the last breath of cool air hit his rear hooves as Nightmare closes her mouth with a loud clack, and an audible gulp, the sound echoing around him in the dark space. Feeling his legs glide down the throat before emptying into the stomach with a splash, the acids having already made a start on his body, starting with creating bald patches in his body hair, and mane falling out, before an almighty belch sounds, releasing pent up gases from the stomach sac, causing it to close in around Dusk, pushing the acids up around his neck, “~I hope you enjoyed your meal my queen... and while I appreciate the honour of being by your side once more, I literally cannot, for you to gain my power... I must be absorbed absolutely, mind, body and spirit... Though know that I did this of my own free will, for it was the only way to ensure that Eternal Night reigns throughout Equestria. ~” Dusk says proudly via telepathy to Nightmare Moon as the acids start to gurgle around him.

Nightmare rubs her belly slowly, heartbroken that she can't have Dusk by her side, "I am sad that I can't reform you, but I have no doubt you shall make me the greatest queen to ever live!" she nuzzles her belly softly, to nuzzle the pony inside her stomach, she knows his destiny was to help her bring about eternal night forever.

A smile spread to Dusk’s face, hearing the Dark queen’s sorrowful words brings a tear to his eye and then a spark of inspiration, “There may be a way for me to be by your side, my queen. When this is all over, seek out a larger than average, White Haired, Pegasus Stallion by the name of Lightning Flash, he currently resides in Cloudsdale, he is my previous self and a great admirer of yours.” Dusk says, grunting slightly as he begins to feel the magic enhanced acids work away his body at an increasing rate, Nightmare’s stomach lets out loud ‘gurgles’ of digestion, beginning to round out and recede steadily.

"Hmmm, very well... It will probably make him smile, knowing I'm going to choose him for my personal guard, but I must destroy those ponies first!" she feels herself getting stronger and more powerful from feeling Dusk digest and turn into mush, since she can't fly, she walks to the castle instead, feeling her belly getting smaller with each step.

Dusk makes little to no sound now, aside from the audible gurgling coming from his melting, digesting body. Nightmare’s stomach, receding rapidly now as the male Alicorn is worked away and his magical essence to be absorbed, once nightmare enters the castle, she quickly changes to her smoke form and travels to the great hall where the elements are kept hidden, arriving to see Twilight arranging the elements into a circle, attacking her immediately to then stand tall between her and the elements smashing them with her hooves in triumph, believing Twilight had failed!...