Nightmare's Reign

Princess Celestia held her ground as a chill wind raced through her throne room. She had sent her guards ahead, but it appeared as if none would return to her now. Her horn flared a soft yellow as she glared at the inky blackness beyond the doors.

The light through her windows dimmed as the shadows in her hall grew longer. Soon, only her horn shone, a torch of sunlight against the spreading dusk.

"Show yourself!" Celestia called.

The sound of hooves against stone echoed through the throne room, heavy and cold. A voice followed them, silky and cruel. "Happy to see me, sister?"

A tall mare, black as oblivion, with pale moonlight eyes shining through the haze stepped forward, clad in azure armor. Fangs adorned her smile, her starry mane and tail illuminating her in the dark. Nightmare Moon.

Celestia was unfazed, drawing herself up, tall and fierce. "Do not face me, sister, or I will strike you down if I must."

Nightmare Moon just laughed, a dark echo filling the holy space. "I already have, long ago, sister," she replied, her voice dripping venom. "And yet, here I am."

"Let us not repeat history once more," Celestia pleaded.

"I don't think we shall," Nightmare Moon replied. "The era of sunlight is over. For now begins the eternal night!"

Dark energy surrounded Celestia, who flared her horn brightly around her, trying to push the darkness back.

But it was no use. Celestia was swallowed by shadow, with Nightmare Moon's laugh cackling faintly in her ears.

Nightmare Moon sighed in annoyance as she sat on her throne. "They aren't going to cooperate today, are they?" she thought.

She was waiting for her next audience to arrive, a host of guards facing forward at the door at the other end of the throne room. No one was really watching her, were they?

As discretely as possible, Nightmare Moon reached a hoof down between her legs and adjusted her fat, ebon testicles, unsticking her nutsack from her thigh. Once they rested comfortably, or at least as comfortably as they could on her throne, she felt a little better. Of course, she was still annoyed at how sweaty they seemed to get.

"Open a window," she barked at the nearest guard, who obliged quickly.

It pleased her to have her own legion of batponies. The old unicorn and pegasus guards were softened by Celestia's reign of peace, but the stallions under her command were strong and disciplined to a fault. After all, she had made them that way with her nightmare powers; the first and only ponies crafted from pure shadow. Although, she wondered if she should really think of these stallions as "others" with her new equipment. She didn't feel like a male. At least, most of the time. While she lacked her vagina, she still recalled that it was a far more polite organ than her new one, her slot hardly noticeable to herself, even in heat. How she wished she could trade them back.

She supposed she shouldn't complain. The nightmare powers she had acquired were beyond anything she had imagined when she first started plotting revenge against her sister. There hadn't been a mote of sunlight in a month. But why they had added a new cock and balls was beyond her. Was it a curse? Was it part of her powers? Nightmare Moon had no idea, but they were more of a nuisance than a power. At least she could boast that she was enormously well-endowed, bigger than any normal stallion, certainly. But sometimes she wished they were smaller, and not in the way so much. More often than not they seemed more a curse than a blessing.

The door opened, and the guards brought forth a white mare with a lavish indigo mane. She didn't exactly look pleased to be here, but Nightmare Moon wasn't out to please her subjects. On the contrary, Nightmare Moon felt something well up within her as she beheld the mare. A warmth that first spread through her belly, but then she felt a stirring, a clawing greed from deep within her balls. Nightmare Moon straightened up and ignored it. "You summoned me, uh... Your Highness?" the mare said in a prim accent.

"Rarity, is it? I understand that you're the mare to see when it comes to aesthetics," Nightmare Moon said.

"Well, I am an expert in all things fashion and beauty," she said, dangerously close to going on a tangent.

"Excellent. You will be my new housekeeper."

Rarity gasped. "Housekeeper? I beg your pardon, but I already have a profession running Ponyville's finest boutique-"

"Not anymore. Starting today, I want you to begin fixing up this old castle my sister has let fall to the wayside for the last thousand years. A queen's palace should be a place of beauty, don't you think?"

"Well, I-"

"Get her in uniform," Nightmare Moon waved her off. A couple guards flanked her and led her away.

"Now, wait just a minute! Oh, let go of me, you ruffians!" The door closed before Nightmare Moon could hear anymore of her whining protests.

She rubbed a temple with her hoof. She had been informed that Rarity was the best, but putting up with her would be a chore. She turned to the stallion at her right, large, imposing, dressed in burnished armor. The mare that remained in her found him quite handsome. "Are you sure about her, Vanguard?"

"A little discipline will straighten her out," he answered in a deep voice. "Soon all will bow to your power, one way or another, and there will be no trouble with them."

Nightmare Moon nodded. "If she is a problem, I will deal with her. Are there any more?"

"No, my queen."

"Good." Nightmare Moon sighed. "I am not sure I could stand another mare like that."

"What do you mean, my queen?" Vanguard asked.

A part of her wanted to confess her stirrings to her captain and bodyguard. He was a stallion at his core, and he could probably provide her with some sort of guidance, but she couldn't break professionality with him quite yet. Besides, if she were to be so uncouth, she would prefer to do it by having him rut her senseless. But she wondered if he would even be interested in such a thing, as she was. She cleared her thoughts of it all. "Never you mind. What is next?"

"Whatever you wish, my queen. You answer to none else."

Nightmare Moon nodded. Old habits of catering to her people died hard, it seemed. "Dismiss the guards and servants. I am going into the dungeon. See to it that no pony knows, and that I am not disturbed."

"Yes, my queen."

Hearing him answer that way every time was a relief in itself. If only all ponies could be as perfectly disciplined as her guard.

Nightmare Moon rose from her throne and headed out of the silvery moonlit throne room into the shadows of the great hall. Only dark, sapphire flames illuminated the way, but even these were reduced to embers as she headed down narrower corridors. As much as she appreciated the company of her guard, there was a comfort in loneliness, in silence.

The dungeon door was heavy and nondescript, guarded by two batponies who were sworn to complete secrecy. Nothing was said as she opened the door and they let her pass. They hardly even turned their gaze toward her. Again, she relished their total discipline.

Through complete darkness, Nightmare Moon's magic allowed her to see the rough-hewn stairs that wound down into the bowels of the castle where other ponies would stumble blindly. Below her were coils of chains and rows of cages, but all were empty, save for one.

Like a mote of light in the shadows, Nightmare Moon saw the once-great Princess Celestia, each limb wrapped in chains, a heavy iron collar around her neck, keeping her pinned to the floor. Ever since the last day, her mane had lost its luster and flow, draped limply over her thin, starved body, and her pristine white coat was marred with scuffs, scratches, and dirty patches. She didn't bother to raise her head as Nightmare Moon approached.

"Long time, no see, dear sister," Nightmare Moon said. "If you're curious, your subjects seem to be adjusting rather well to my night."

From beneath the tangles of hair, Nightmare Moon saw a lavender eye glare at her. "You cannot stop me from protecting them. Not forever," Celestia said, mustering her strength.

Nightmare Moon laughed. "How? They don't even know you're alive. They've already lost hope. The shining Princess of the Sun has failed them. Soon, they will turn to the new Princess of Moonlight as their provider."

Celestia seemed to smile. "Then it will be all the more triumphant when I make my return."

"I would like to see you try to face me, starved and weak as you are. I defeated you once at your full strength. If you stand against me again, you may not survive the encounter," Nightmare Moon said wickedly.

"I still have some power left. It's why I'm alive, isn't it?" Celestia said. "You want to take it from me. But you will never have it. And without it, the ability to wield the Elements will never be yours. Even if you strike me down, some other ponies may yet claim them. And light will return to Equestria."

Nightmare Moon growled. "You are so foolish, sister. There is light in Equestria! But because it is moonlight, you think it shadow. You with your precious sun could never understand the beauty of the night."

"And you could never understand the beauty of the day, because you have turned your back on true light," Celestia shot back.

"Listen to you prattle on!" Nightmare Moon barked, pacing around her sister as she spoke. "You speak as if there is any true light, any true goodness in this world, but I know differently! I know that there is just as much darkness as there is light in ponies' hearts. Yet it is a beautiful balance, reflected in the night I created. Just as there are many forces in a pony's heart, so too does this new world teem with good and evil, love and hate, and so much more."

"You're wrong!" Celestia said, her chains clanking as she struggled. "Ponies may not be perfect, but we all are good at our deepest core. The Elements of Harmony are emblematic of those traits, and with them, truth, justice, and love will always win out in the end."

"Is that so?" Nightmare Moon said, her anger rising, her fangs flashing. "Was it true that you and I ruled equally, or did you receive the lion's share of the glory while I wallowed in obscurity? Was it just for ponies to ignore all my labor for them, all the ways I sacrificed my time and dreams to try and lead them while they worshipped you as a goddess? Did they love me as they loved you? Or did I writhe in loneliness and darkness, without a single word of comfort or support, even from my own sister?"

A deep sorrow sank into Celestia's eyes. "Luna, I'm sorry-"

"No, you aren't! You weren't sorry then, and you aren't now!" Nightmare Moon shouted. "You had the power to change things. You had the power to let me rule at your side, but you did nothing! No, you wanted it that way. You loved it. Every word of praise, every moment of joy they experienced in your creation, every act of reverence you received. You gorged yourself upon their love like a glutton while I starved. And when I tried to stand up for myself, my own flesh and blood banished me." Nightmare Moon straightened herself. "And you have the audacity to preach to me about justice. About love. But the truth is, sister, that you and I are one and the same. You would be wise to accept this, and bequeath to me your power. After all, it would only be fair after all I've suffered through."

Celestia shook her head. "I can't. I won't let you hurt my little ponies."

Nightmare Moon's blood boiled hot. "Don't you understand!? They're my little ponies now! All is mine! And I shall take as I please!"

Celestia's face was filled with complete horror, but Nightmare Moon noticed she wasn't staring wide-eyed at her own face. She followed her sister's gaze down, between her legs. Nightmare Moon hadn't noticed, but at some point in the fit of her emotions and her racing heart, she had sprung a massive erection.

It throbbed hard between her legs, black as the night sky, as long as a sword and as thick as her leg, the flesh sleek and shining. The veins that wrapped around it were subtle, pulsing lightly near her base and her puffy midring. Her flare was broad and imposing, spreading itself with every beat of her heart, slapping her upper belly, already leaking a bit of clear, sticky precum. Her crown jewels were just as magnificent, each the size of grapefruits and hanging low between her thighs, the heavy weight of her cum-filled sack dragging it down. What dim moonlight that managed to reach the dungeon reflected off her orbs like stars, and they swayed and swung ominously as her rod throbbed.

She could only stare at it. Her mind was completely blank. She never imagined an erection would feel this way. She felt so stiff, a solid, throbbing stiffness that she felt all throughout her body. It absolutely needed to be sated. The need to plunge her mighty malehood into something, anything, was driving her mad. She needed to mount, to rut, to hump and breed. It was worse than being in heat.

Nightmare Moon clenched her teeth. She raised her magic, and gripped Celestia's mane.

"Sister! Please!"

"Shut up!" Nightmare Moon barked. In a fit of rage, she yanked her sister's head forward by the hair and thrust her hips toward her. All at once, her great flare was stuffed between Celestia's petite lips.

Celestia cried out around the meat in her mouth, but Nightmare Moon moaned. Her head was pounding with shock and adrenaline. She couldn't believe what she had done, but it felt so good. The pleasure she felt in her cock wasn't quite as good as what her pussy provided her under all the right conditions. However, the sensations weren't concentrated like they used to be in her clitoris, but rather were spread out over the entire area of her massive member, even though only her head was receiving attention.

There was more than the mere tingles of satisfaction, though. There was a deeper sensation that pleased her, not a physical one, but a feeling within her. Power. Yes, she could feel power coursing through every vein in her cock as Celestia's warm mouth wrapped around her flare. She could even feel power racing through her balls, her stones feeling so full and heavy with power. She had never felt stronger before in her life. And she wanted more.

Nightmare Moon shoved her hips forward, and sent the first several inches of her cock into Celestia's mouth. "Ohh," she moaned as the heavenly warmth rippled through her shaft. She could hear Celestia protesting beneath her, but she didn't care. The more of her malehood she had inside her sister's mouth, the greater her pleasure became. As if on its own, her dick pushed forward in search of more, and the next few inches were forced down Celestia's throat. Nightmare Moon could feel Celestia gagging on the thick meat spreading her throat open, but it felt heavenly to her royal scepter.

"Take it all, sister," Nightmare Moon said as she pressed forward. Her sister's gagging continued, but it was as if her throat was stroking her cock like a hungry whore. Nightmare Moon wagered that Celestia had never done any of this before, but that only made the honor of being the first to stuff her sister's throat full of succulent stallion meat all the sweeter.

Nightmare Moon hissed again in pleasure once she felt Celestia's lips wrap around her midring. Now she understood why stallions were so notoriously horny. Getting her cock sucked was addicting. She pushed forward with lust and greed, wanting only to sink more of her shaft into that hot, tight throat of Celestia's.

"Ahh," she moaned once more as she shoved the last few inches into Celestia, feeling her muzzle bump up against her sheath, her face pressing into her teats. Yet her spite only grew with her pleasure. She gripped Celestia's mane harder and yanked a little to get her attention. "Suck my fat cock," she ordered.

Nightmare Moon rammed her hips into Celestia's face, spearing Celestia's throat with her mighty rod and slamming her balls into Celestia's neck. But she didn't stop at one single thrust. She drew back for more, shoving her thick dick past Celestia's tight throat again and again. Nightmare Moon couldn't control her lust or her voice anymore. The moans came endlessly from her, so great was the pleasure of her sister's suffering, of the power she wielded between her thighs. Truly, this was better than being a meek mare like her sister, to possess only a pussy and a mouth made for stallions to invade. Now she was free to fulfill her needs by force, to cow her enemies with her might just as males did, yet she was also free to lift her tail and receive the intense pleasure that was a female's reward for submission. All ponies could be hers, and she truly wanted to take her kingdom much in the same way that she took her sister.

She looked down to take in the sight. Nightmare Moon was filled with pride as she saw tears streaming down Celestia's eyes, her mouth opened as wide as it could as Celestia choked on the great black cock thrusting itself into her, her dainty throat bulging with the invasion. Nightmare Moon could only imagine the pain, yet she realized she felt no remorse. It was a joy to inflict, and it only made her thrust harder, sweat starting to roll down her neck and flanks as her balls crashed into Celestia's throat.

However, she saw Celestia's eyes begin to roll back into her head, and she knew she had to pull out or she would suffocate her fun cocksleeve. When she did, Celestia fell to the floor in a heap, coughing and gasping. Nightmare Moon stood over her, her member waving beneath her powerfully, and she carried it like her queen's scepter. "My, my, you're tougher than I thought. I must say, it was selfish of you to withhold that kind of pleasure from so many stallions, all for the sake of your purity. I mean, how valuable is your chastity, really, if it can be taken from you so easily?" Celestia didn't answer, only trying to catch her breath, still coughing a little.

Nightmare Moon stepped over her more, letting her balls dangle in front of Celestia's head. A thrill raced through her just at the feeling of no longer hiding them. "Tend to my jewels," she ordered.

Celestia didn't move, so Nightmare Moon pulled her by the hair until her muzzle was jammed up into Nightmare Moon's smooth pouch. Once she was there, Celestia began to lick the flesh gingerly. Nightmare Moon hummed in her throat as she felt that warm tongue lap over her leathery skin. Her orbs weren't even as sensitive as her cock, but the pleasure she felt was even greater in a way. She couldn't help but toss her head and draw herself up tall over her sister as her balls were licked and suckled. To Nightmare Moon, this was worship in its purest form, and she already craved more of it. The phrase she remembered was "polishing the family jewels." If that was the case, then was tempted to display her pair as the crown jewels they were, no longer hiding them in court, but displaying them, making her subjects kiss them like one would a signet ring. Every warm, soft nip of Celestia's lips against her sensitive skin filled her with delicious pleasure, and every lick of her wet tongue filled her head with more fantasies. Her very blood was tinged with lust, and Nightmare Moon reveled in it.

"Be sure to clean them well," Nightmare Moon taunted. "The stallions don't lie; nutsacks have a way of getting sweaty." She grinned as Celestia wrinkled her nose in disgust, but Nightmare Moon only shoved her snout back into her balls, forcing her to lick them until they shined.

After all the excitement, it took a while before Nightmare Moon's cock couldn't stand in the open air any longer, throbbing for more. She debated for a moment as to whether to continue to enjoy Celestia worshipping her ballsack, letting her need for pleasure rise until it consumed her, or to see what ejaculation felt like. The decision alone filled her with a feeling of freedom, of immense power, and her curiosity got the better of her.

Once Celestia had licked every inch of her succulent fruits, Nightmare Moon again pulled her by the hair and shoved her pole down her throat, her moans drowning out her sister's gags and cries as she was choked by the dark mare's ebon stallionhood. Nightmare Moon took great relish in thrusting once more, feeling Celestia's lips and throat wrap around her cock, squeezing and suckling, earning her pleasure just so that the moment might end.

But Nightmare Moon sought to drag it out as long as she could, thrusting with abandon, feeling her blood pump and her thick, male flesh sing with every motion of her hips, strength and control intoxicating her. The pleasure built up within her, and it felt oh so right. It was right to have this cock, and it was right to violate her sister with it. And it was right to expel her seed, to cum as she pleased. She was Queen now, the ruler of Eternal Night, and she felt it now more than ever.

"Argh! Yes! Yes! This is it!" Nightmare Moon cried out as something stirred within her, hot and overwhelming. Celestia was clearly choking on her cock, her throat retching, trying to gasp for air, but Nightmare Moon wanted the bitch to choke. She wanted her to cry as she swallowed her hot cum. And she could feel the load welling up within her, ready to spill out at any moment. She gasped when she felt a searing heat at the base of her cock, like it was taking on a life of its own. It started throbbing, twitching, her orgasm building and building, even as she stood perfectly still. It was out of her control. She knew what it was, but she felt helpless to the strength of her climax. This was nothing like a female climax. This was a different beast, primal, hot, an animal within her thrashing to escape.

"Ah! I'm cumming!" she said in shock, her voice tinged with ecstasy as she finally let her male nature take a hold of her. "I'm cumming! I'm cumming! I'm - ahhh!"

Nightmare Moon's breath was hot and quick as her male organs took over, whether she was ready to experience her first ejaculation or not. She could feel fluid moving through her with a few more heavy throbs, but all at once, it seemed to explode from her flare. "Gah!" she gasped as it all started coming out of her. She felt like she was trying to control a giant, wild snake, but her python spit its venom no matter what she did. Celestia gurgled beneath her as gobs of hot, thick cum spewed into her throat, filling her gullet and backflowing around Nightmare Moon's great shaft, staining her black meat in a coat of white glaze. Nightmare Moon groaned loud with every throb that shot her load in spurts, defenseless against her own release, her fruits draining of all their pent up lust, emptying every drop of her dark nectar into Celestia. It was quickly too much for her to handle, and she whimpered as it began to leak from the edges of her lips, thick white strings running down her chin and throat, dribbling from her nose as her sinuses were filled with salty, bitter jizz. Nightmare Moon could feel her retching, but her gagging throat only milked her more, and she sighed as she eased into the latter end of her orgasm, finally accepting the inevitability of male ejaculation, letting it all flow out of her as she rode on waves of pleasure. Sure, it wasn't as intense as a mare's climax, but it was somehow all the more enjoyable, letting her malehood take the reins for once. It felt like it lasted for ages, but every new pulse of seed she pumped into Celestia's craw only filled her with a greater sense of pride in her potent virility.

Nightmare Moon's cock softened, whether she wanted it to or not, and soon Celestia was able to spit it out. Celestia collapsed again in coughs, but Nightmare Moon watched in sated satisfaction as her sister coughed, dry-heaved a couple times before finally throwing up a huge glob of her essence. The splatter was still pure and white, as Celestia hadn't had anything to eat in weeks, but she still grunted and sobbed in pain, struggling to take a breath before she made another harsh gagging noise, and she vomited up another wad of fresh semen.

With her belly totally empty and her body all but exhausted from her violent vomiting and rough abuse, Celestia collapsed again, her sobs weaker as she tried to breathe through her cum-stuffed nostrils. Nightmare Moon could only grin at the sight. She reached a hoof down to her cock, readying it to really make Celestia pay, but she found that it was no longer stiff and proud, but chubby and floppy beneath her. She gave it a few strokes to try and bring it back to life, but it was no use. It was sated for now, and her balls hummed with satisfaction.

"Curse this useless cock!" she thought. "What good is being hung like a god if you can't make it do what you want? Stallions are right. It really does have a mind of its own."

Nightmare Moon realized that she had nothing more to say to her sister. With her breath still somewhat heavy in her chest, Nightmare Moon turned and ascended the dark dungeon stairs, back into her palace, putting the ugliness behind her.

The guards barely acknowledged her as she closed the door behind her, even though she could feel her member swinging generously below her, still leaking thin drops of cum. She strode back to the throne room, and found Vanguard in the dark halls along the way.

"There you are, my queen," he said, bowing his head before her. As he did, Nightmare Moon watched his eyes take note of her limp dick, clearly post-orgasm, and she let him stare for a while before she spoke.

"I have a special task for you, Vanguard. You are to tell no one."

"Yes, my queen. What is it you wish?"

Nightmare Moon grinned. "See to it that Celestia is well-fed. I want her to have cake and whole milk three times a day, as much as you can force down her throat. She's grown thin, and I want her flanks back to their usual plumpness for when I take them."

Vanguard didn't even flinch. "Yes, my queen. I'll have it prepared for dinner."

"Perfect," Nightmare Moon replied. "I'm going to retire to my chambers. Join me and guard my sleep when you're finished."

"Yes, my queen."

Oh, how she loved to hear that response. Nightmare Moon practically floated through the halls as she ascended to the tower to her bedchamber. She didn't think she would ask Vanguard to her bed tonight. No, she wasn't about to lift her tail and submit to anyone right now. She was master, and she could do as she pleased. She didn't care if the guards, the servants, or even if that new mare, Rarity, saw her fat cock flopping beneath her.

"Let them see," Nightmare Moon thought. "Let them know the true nature of their queen. Let them know the power I wield. Soon, they will all worship me."