A twinge of excitement shot through her body, making her mane stand on end. The door swung open easily despite its huge size. The young mare smiled as she passed through into the cool darkness of the forbidden chamber. A smell of sweet lavender and sandalwood oil lightly filled her nose. She had been slightly hesitant at first. But now, standing in the stone chamber, she felt suddenly free and wildly excited.

"Come in, Luna. It is alright. Mother and Father are gone all day." She whispered over her shoulder.

The dark blue muzzle of her sister poked slowly around the corner. Her eyes wavered slightly with fear, but only for a moment. Steeling herself, she slowly trotted inside, glancing backwards nervously as if she could be discovered at any moment. Luna tried to puff her chest up and calm herself. She just didn’t want to look like a foal in front of her big sister.

Celestia gave her a comforting smile in the dim light. She wanted to explore more today. Just entering the off limit room wasn't enough. There was something else here. The young princess knew there were other secrets hidden. Something fun. She felt the tremors of excitement pass through her thighs, shivering against the sudden sensation.

Running a white hoof along a polished ebony dresser, Celestia trembled as she drew the drawer open, the finely crafted wood sliding smoothly under her touch. Her eyes beamed as the dim light cascaded on the neatly stacked silken garments inside, illuminating a forbidden treasure to the two young ponies. Celestia gasped silently at the hidden stash; Luna merely shied away, casting an uneasy glance at the undergarments. "Tia...we're not 'sposed to go in here." She pleaded, her voice barely a whisper.

Celestia shushed her sister with a slightly annoyed look. "Do not be such a scaredy foal, Luna. Mother will never know. We are just having a bit of fun."

Selecting a red silk and lace pair, Celestia ran them across her hoof, savoring the delicate fabric. She nuzzled it slightly, inhaling deeply, smelling hints of their mother’s soft lavender scent. She flipped a sheer white pair to her sister. “Here, try a pair on. All the grown up ponies wear these. You do not want to look like a foal all your life, do you?”

“I’m not a foal!” Luna said in a huff. She looked at the smaller pair of white panties, and grasped them with her front hoof, falling on her back as she tried to shimmy them on her dark blue legs. It took a bit of work. She never really understood why grownups wore clothes at all. Thankfully there was a clever hidden catch to fasten around the tail, rather than the simple hole some of the pairs featured. The garment fit loosely, but still hugged the inner thighs of the small pony. Walking in it felt strange. The soft fabric rubbed her nethers ever so slightly, making the foal blush.

Luna glanced over at her sister. She was captivated by something else in the drawer. Carefully she moved delicates to the side as she dug to the bottom of the drawer. There was definitely something hidden there. She sensed some foreign device under the wooden bottom; something the pulsed weakly with magic, old and foreign to her. Celestia had to know what it was.

Her horn lit up with a dull, pink light. The bottom of the drawer resisted for a moment, then pulled silently upwards, exposing a secret compartment. The alicorn looked in wonder at what she had discovered. There were over a dozen strange devices illuminated in the pink light. Made of some strange material, she could feel a few reacting to her magic. She could feel them responding to her. The magic was old, but familiar. More uncertain were the function of the strange things. She studied one, picking it up and examining its smooth surface. Luna looked on, mesmerized by the feelings she was getting from the relics. More in tune than even her sister, she could feel an odd emotion emanating from them. Feelings of pure lust. She took a step back, fear welling up at the strange feeling. She had never felt anything like it before.

Celestia’s ears perked up at her sister’s reactions. All at once it was clear. These were objects of pure lust and sex. A pony in tune with magic could feel the emotions stored inside their smooth forms. She ran a hoof along the cool surface. Nearly a foot long, the object tapered at one end. It felt like stone, but was light in her hoof. A twinge of electricity sprang from the device, making the mare gasp. She was completely enthralled by her new toy.

“Tia. Tia please. Put them back. I wanna leave!” Luna shuffled uncomfortably. She had completely forgotten she was wearing a stolen pair of her mother’s lingerie.

The white mare ignored her. She reached out her pink tongue, and tasted the tip of the device. Her mouth felt a small electric pulse, causing her eyes to widen as she recoiled. If the feeling was that intense just from her tongue, if she were to touch a more sensitive spot…

Celestia looked at her sister, her eyes softening as she spoke sweetly to her sister. “We will leave, Luna. I just want to show you something first.” She brought the round toy in front of her sister, levitating it in front of the small pony. “I found these in mother’s dresser. Do you know what they are for?”

Luna looked up at her sister, an expression of shame and confusion on her face. “They’re something only for grown up ponies. It’s…it’s something naughty, Tia.”

“Shh, sister, it is not naughty. It’s something very special that two ponies that love each other can share.” Celestia brought the smooth toy along her sister’s soft neck. The sudden shock and the coolness of the crystal caused Luna to shudder ever so slightly. She kept staring into her older sister’s eyes. “You do love me, do you not?”

“Y…yes sister.” The object ran across her back now, rolling across her perfect coat, causing her mane to stand up at the strange sensations.

Celestia’s soft pink eyes consumed the foal as she stared into them. “I love you too, little sister. Please let me show you how much.” Her inner thighs were growing hot as she concentrated on the crystal rod. She prodded the tip against her sister’s tail, circling it and playing down her shapely rump. The foal shuffled against the strange feeling. Celestia felt her horn light as she moved the toy. Her mind and magic connected with the ancient magic inside. It was as if it came alive. Suddenly the object sparked as it activated, vibrating slightly and sending small jolts of energy through Luna’s sensitive flank. The foal gasped, jerking away. Celestia stared down at her, her eyes filling with lust. She widened her magic’s scope, holding her sister fast.

The alicorn ran the toy up and down her sister’s young marehood now, prodding deeply through the white panties she still wore. Luna’s front legs buckled under the strange feelings jolting through her, and her sister’s magic weighing heavily on her body. Her young flank thrust up in the air, an open invitation to her hungry sister. She worked the toy through the oversized leg hole of the panties, applying the device to her sister’s bare sex, sneaking the tip between impossibly tight folds.

All she could remember was Luna finally cumming against the toy, as she buried her head under her hooves, taking short breaths as she tried to comprehend what had just happened. Celestia remembered the foal looking up at her, recovering from the orgasm she had just felt, the first of her young life.

She had never once cried.

Celestia woke from the dream in a sweat, her thighs coursing with heat, breathing heavily in the dim light of her royal bedchamber. She hated that dream with a passion. She really had no idea how many times she had relived it; some nights she simply forgot the previous night, and her dreams faded into distant memories in the hazy mornings, mixing with the daily excitement of her duties as ruler.

She lit her horn, and brought a small decanter of honeyed rum. Not bothering with a glass, she drank deeply, letting the burning liquid fill her. The alcohol helped keep the dreams away, but affected her sleep, leading to restless nights. She was far past the point of caring. Resting her head back on the silken pillow, she glanced the rays of the moon play along her room, touching her bed and cascading over her prone body. Angrily, the princess threw the covers to the side and strode across the room, throwing the heavy outer curtains across the balcony window, blocking all light from her room.

As the darkness overtook her chamber, she finally found some measure of solace in the night. The potent alcohol coursed through her, and as she lay down, she let her thoughts cloud over. Thankfully she passed into a dreamless sleep.

Merriweather pushed the same clattering cart into Twilight’s room, heralding the coming morning. The perky student was already awake, diligently studying a text on astronomy. The older pony servant smiled to herself. She had hardly changed at all. Even years later, she still seemed to be the same little foal that lived here so long ago.

Twilight Sparkle glanced up, hearing the familiar silver cart on the stone floor. Jumping to her hooves, she hurried over to help the other mare.

“No, no, Miss, I am perfectly capable of handling this myself. Don’t mind me at all.”

Twilight gave her a worried look. The orange mare had not aged well. In the years since she had last seen her old attendant, the pony had developed a bad case of arthritis. Her every movement clearly brought spasms of pain as her old joints ached. Merriweather was a very proud pony however. She never let on that she was in pain, and certainly never let her ailments affect her duties.

“It’s really alright, Merriweather. I can handle things myself.” Twilight said as she quickly hurried over to the shaking cart. She began to grasp the silver teapot in her magical grasp, only to have the servant grasp it firmly with her hoof, ignoring the tug from Twilight. She made sure the filter was in place, and slowly poured the tea, so as to make sure none spilled. She uncovered the small breakfast, and prepared it before Twilight could react. She buttered thick toast, and drizzled maple and pecan syrup on several very fluffy looking oatcakes. Twilight found herself just standing back and smiling as the confident mare made her breakfast. When she was done, Merriweather turned and made an awkward bow.

“I hope you enjoy your breakfast, Miss.”

Twilight Sparkle had a hard time not tearing up at the familiar response. She loved the old mare deeply. Walking over to the small cart, she leaned over, smelling the wonderful smell of fresh oatcakes and syrup, with plenty of dark tea. She also snickered when she saw the small tumbler of spiced brandy. The servant pony had never forgotten. Although she drank less now, she couldn’t resist taking a small sip, smirking at Merriweather from the side of her muzzle.

“I’ll leave you to eat, Miss. Please remember that the Princess Celestia requests your company in an hour in her study.” Merriweather turned to leave, but was suddenly stopped by the purple unicorn.

“Merriweather…I…um, I mean…” Twilight stammered as she crossed her front hooves absently. She looked up into the kind eyes of the servant pony. “I’m really happy to have seen you again.”

To Twilight’s amazement, the reserved orange mare actually blushed slightly, lowering her head ever so slightly. “I am too Twilight. You’ve really grown up well, in spite of everything.” Twilight could swear the other pony was trying to blink back tears. She almost felt like she should go to Marriweather, when the other pony suddenly turned and trotted off, leaving Twilight alone in her chamber.

It was very strange for Twilight as she walked through the sunlit drenched courtyards, looking at all the carefully kept flowerbeds and immaculate fields of grass. The whole castle was so very familiar, yet this time everything was different. As a foal, the stone walls had been her prison, of sorts. And yet now, they seemed almost homier than anyplace she could think of. A strange sensation of comfort flooded over her as she felt the warm rays of sun on her back.

However, the very thought of Celestia’s study brought back pained memories for the grown up unicorn. She remembered fond nights where the two of them would stay up late, reading long forgotten tomes, chatting about spells and giggling at mistakes in the ancient texts.

At the same time, she could remember the dark times. Days when she would report to her studies diligently, only to find her idol hung over and ornery, making fun of ponies in the castle, or, even worse, Merriweather. Times she would push Twilight harder than she could even imagine, and then would mock her inability to keep up. And worst of all, the ‘special training’ days, when the Princess had even darker ideas in mind.

The imposing nature of the room itself hadn’t changed much. The ebony desk, and the white velvet chairs remained. However, in place of one of the sun symbols of Celestia, there was a new symbol in it’s place. A curious crescent moon. Dismissing it, Twilight trotted towards the dark wood desk, her hoofsteps making a faint echo in the cavernous room. Only when she neared the desk, could she see the lounging form of her former teacher stretched out on a white velvet sofa made solely for her.

In the faint glow of a crackling fire, and the soft morning sunlight, Twilight would be lying if she didn’t admit she was beautiful. Although the purple unicorn had aged almost a decade, the white alicorn looked even younger then she had before. The light played on her glowing mane, and her white coat positively glowed. Twilight was nearly in a trance when the Princess looked up at her and smiled. “Twilight! My most faithful student.”

She rose from her sofa gracefully, walking over to the younger mare. Twilight stood as still as a statue, the emotion and the intensity of meeting her mentor again almost overcoming her. Without even thinking, she bowed on one hoof, lowering her head instinctively.

Celestia chuckled quietly. Gently placing a hoof on the unicorn’s muzzle, she brought her head gently up into her gaze. “Twilight Sparkle, you should know better! You do not need to go through such formalities with me!” The Princess couldn’t resist stroking her hoof down the unicorn’s elegant neck,, admiring her still tomboyish mane. She craned her neck down low, greeting the other pony with a shared hug. Old memories flooded back over her as she felt the other mare's soft fur, the short strands of mane catching on her muzzle as she pulled away slowly. The smell of the purple pony even seemed the same as it did all those years ago...

“Princess…I came as soon as I received your letter.” Twilight rose onto all four hooves, smiling eagerly at the white pony. “I understand you wanted to talk to me about Nightmare M…” Twilight clasped her hooves over her mouth, but it was too late. “I’m so sorry Princess, I didn’t mean to call her that…”

Celestia shrugged as she strode over to a nearby fainting couch. “It is quite alright, Twilight. Most of the kingdom still refers to her as such. They have had no opportunity to meet the real Luna. I feel you and your friends saw it though. Saw the kind and gentle pony that existed before she grew jealous and full of hatred.”

Twilight stood in silence for a few moments, head bowed down in thought. “I did see something, Princess. Using the Elements made things a bit…chaotic. But when she had been purged of her evil, I saw a small pony, very full of sorrow and regret. A pony that desperately needed you, Princess. I guess I can’t really imagine how she would feel after such a long time banished by her very own sister. But in that moment I think I could feel a very small bit of it.”

Twilight could tell this was very hard for Celestia. She stood away from the purple pony now, gazing out her study window. “Yes, I think you did, my student. It has been hard for us, it is true. I really do hope that the ponies of this kingdom might forgive her.” As she looked back towards Twilight, her eyes were wet with tears, although the elegant mare managed to hold them back. “Would you like to see her, Twilight? I know you two never got to meet in any meaningful way. You would very much like her. The both of you share so many interests.”

Twilight pricked her ears up a bit at the thought. She still was not sure what to make of Luna. It was still hard to even think of her as a Princess. Still, looking at Celestia, maybe a little white lie would be okay just this once. “I’d love to meet her, Princess.” She said, trying her hardest to put on a smile.

“Excellent! Let us say tonight, over dinner?”

“Yes, that sounds great!” Twilight gave a rather wide, rather faked grin.

Celestia walked over to her imposing desk once more. “I will make all the arrangements, then. And I will see you this evening. I have to meet with some city planners today.” Celestia suddenly looked over her shoulder, grinning at Twilight. “Unless you wanted to spend some time with me this afternoon. In private. I could tell them I'm...busy.”

Shifting from hoof to hoof, Twilight stammered. “N…no, I think I’ll just say hello to some old friends. I’ll see you at dinner, Princess.”

Celestia smiled. “I’ll be looking forward to it.”

Author's Note

This was the last bit of story I had written for Faithful. I actually wrote the ending for this chapter 3 times, deleting it each time. I never really liked any of the endings I wrote to it. I also was unsure if I even wanted to move onto Twilight's adult life and her further relationship with the Princess. But I think I've settled on a way to do it well.
Since I felt like doing some more writing recently, I revisited it. I have some plans for completing this finally!
So for now, I've completed this chapter ( a bit short I might add.) I'm going to go a completely different direction than I was originally going to go, but I think you will all enjoy it.