“Dusk...just how long has these changes been happening?” Cadance asked, her voice had a very worried tone, “I expected you to have some side effects from changing back and forth between yourself and Twilight, but this? Dusk I really don’t know what to say.”

“...” I remained quiet for a moment before finally getting the courage to speak up, “I guess the side effects started not long after I started changing into Twilight.” I grabbed another pillow and hugged it tightly to my chest.

“I really don’t understand what’s happening to you.” Cadance stated, “I don’t feel any magic coming off you, at least aside from what changes you into Twilight.”

“My guess is that because we’re one and the same pony, my body is trying to reflect that.” I replied, “but that’s only a theory, at least one that makes the most sense.”

“I suppose that could be the case.” Cadance thought for a moment, “I’m really surprised at your room. It looks like a room fit for a princess, was this your doing...or Twilight’s idea?”

I got up and looked around my bedroom, was this really my room, or was this Twilight’s room? My reflection caught my eye, and I let the pillow I was hugging fall to the ground, giving me a fully naked view of my body...

“Dusk?” Cadance gave me a concerned look.

In the mirror stood my own reflection staring back at me with the same magenta eyes. My mane fell a little past my ears, falling just short of being down to my neck. My frame had slimmed down and decreased in height a few inches, not that I was very tall to begin with. My waist had become slightly narrower, and my hips were noticeably slightly wider. My breasts were small, barely considered a B cup according to Rarity. My face was softer, and my voice had softened and lightened in pitch, Everything about me screamed that I was a rather petite mare, except for the one thing between my legs.

“Just what am I Cadance?” I asked, “I know I’m a stallion, but another says I’m a mare. Am I really Dusk, or am I Twilight? Or maybe I’m both...” I sighed, “I just don’t know anymore.” I sat down on the edge of the bed, and Cadance gave me a reassuring hug from behind.

“You’re you Dusk, that’s all that matters.” Cadance reassured me.

“Dusk and Twilight huh?” I wondered aloud, “I don’t think there could be a more fitting name for me.” Cadance said nothing, unsure of what to say, “What are my parents going to say when they find out?” I let out a bitter laugh, “That I botched up a spell due to poor timing, and now I randomly turn into a mare, and lose control if I don’t change for so long.”

“I’m sure they’ll understand Dusk.” Cadance reassured, “Shining and I aren’t going to turn our backs to you, even after what’s happened today, and I highly doubt your parents will abandon you.”

“And what if I lose control again?” I asked her, “For goodness sake, I just fucked my older brother. How am I going to explain that if I lose it again, let alone my brother won’t look at me the same way again?”

“Well to be fair...” Cadance trailed off with a blush, “That was kind of hot seeing you two rut each other like that.” I shot Cadance an unamused look, “Why do you react the way you do when you change?” She asked getting back to the subject at hand.

“It’s...kind of...addicting.” I admitted, “I feel all warm all over, and the way it caresses my body...” I shuddered at the memory of the feeling, “It just leaves me wanting more, it makes me crave it with each tingling feeling it gives me.” I crawled over to Cadance, “It makes me feel like such a naughty filly...and maybe I want to be a naughty filly...”

“Dusk calm down...” Cadance warned, “We don’t need you to lose it again.”

“O-oh...I-I...erm...sorry about that.” I snapped back to my senses, and blushed, “I don’t know what came over me...”

“Dusk as tempted as I am to fuck you right now, we do have more pressing measures to deal with.” Cadance deadpanned.

“Jeez do all Alicorns have a sex drive like yours Cadie?” Shining asked as he came back in the room with some drinks, Cadance nodded.

“We usually have very good control over it...” Cadance explained, “It’s usually a very bad...or good idea, depending on how you look at it get in between an Alicorn and their intended bedmate.” Cadance took a drink before continuing, “Anything with even the tiniest aphrodisiac can make an Alicorn go into a lustful frenzy.”

“That would explain why Celestia always refused chocolate...” Shining commented. I couldn’t meet my brother’s gaze when he turned to face me, I had barely touched my drink and my face was red with embarrassment.

“...I’m sorry.” I mumbled under my breath, “I’m sorry I lost control like that earlier.”

“Look.” Shining sighed, “This is just as weird for me as it is for you, so let’s just keep this between us okay?” I nodded in agreement, “Just try and control yourself a bit more okay?” I nodded again and gave my older brother a small smile.

Luna stormed into her private quarters, furious at her older sister. She couldn’t believe that Celestia had no intention of helping her student with his current situation.

“Best learned from experience our backside!” She muttered to herself, “She won’t even offer him even the tiniest of advice.” Luna had come to terms with a lot of things since she found out that Dusk and Twilight were one and the same. One of which seemed to be how Celestia was determined to keep Dusk for herself, Luna briefly wondered if her elder sister was jealous of her because of how much attention Dusk seemed to give her.

“Hmm...then there is the issue of Macintosh and Dusk.” She paused for a moment, “Anypony can see they care a lot for each other, and I’m not going to break them up out of jealously.” Luna shook her head. She wasn’t going to go down that route considering what had happened last time.

Luna thought for a moment, on one hoof there was her own feelings towards Dusk and on the other there was Dusk’s predicament to consider. How would she go about helping him? Celestia was outright refusing to with the way she was going on, and in truth Dusk was closer to her than she was her older sister.

Luna didn’t doubt for a moment Celestia taught Dusk well, her elder sister was a perfectionist when it came to teaching. Dusk could use a bit more of an education when it came to the nightly arts, and all that came under her domain.

It was common knowledge of what each princesses titles were, but she doubted they knew of what that actually meant.

Celestia is best known as the Princess of the Sun, but she’s also known as the Lightbringer, the Ruler of Dawn, and the Guiding Light to name a few such titles. Everything that emerged and thrived during the daylight hours was her domain, and she was the embodiment of light and life itself.

Luna herself, is more commonly known as the Princess of the Moon and the Ruler of the Night, but she had many other titles to her name even before she became Nightmare Moon. The Dreamwalker, the Carnal Night, and to some the Vanishing Princess. Everything that embodies the night, dreams, nightmares and even the oceans bend to her will.

Cadance, was one of the more recent of the princesses. She was commonly known as the Princess of Love, and was one of the harder princesses to understand. In truth she was exactly that, but few really understood that her domain included desire, and lust as they too were apart of love. Luna knew as much as Cadance enjoyed her title, she also suffered the negativity of it as well...though Luna doubted Shining was complaining.

Dusk...while he is technically a princess given his situation, did hold the title of Princess of Magic and Friendship. Luna let out a small smile at what this actually meant, magic was one thing but friendship? That was one thing Dusk would have to learn for himself.

You see each Alicorn was the physical embodiment of what their title was, while they are technically immortal, they were far from being gods and goddesses. It takes countless years for an Alicorn to truly master there own aspect. Luna knew that just as she was linked to her sister just like day and night, love and friendship was linked in a similar way.

Luna stopped mid step, as she came to a rather interesting thought. Dusk and Twilight referred to a period in the evening where day would transition into night following just after a sunset. Maybe it was time Dusk made a similar transition, if Celestia wouldn’t help her faithful student as his mentor then maybe he needed a mentor who would.

“Learning through experience is a fine lesson sister,” Luna muttered to herself with a small smug smile, “But a teacher has to be willing to offer guidance when needed, and besides you can’t teach Dusk the things I can.” Luna licked her lips with a new sense of confidence knowing fine well what that exactly meant.

Celestia groaned, after she closed the door to her own private room. She was exhausted and stressed with the constant demands, it was hard to forget that she wasn’t as perfect as she seemed to be. On some of the worse days she was sorely tempted to incinerate some of the more demanding ponies of her day court.

The argument she had just had with her younger sister had really took up the last of her patience, it was bad enough she snuck off to who knows where if it took her fancy, and this whole fiasco with Dusk was just another thing to add to the growing list. Celestia craned her neck, and frowned.

“It’s always the same damn thing.” She sighed, “It’s always about what I can do for them...and if I decide to be selfish they call me a tyrant.” Celestia grimaced at the last time she decided to indulge herself, “It’s one thing to be a princess, but is it so wrong of me to actually enjoy being one?”

Despite having practically all the power of a entire kingdom in the palm of her hands, it was always up to the princess to set an example. Deep down Celestia truly felt that everypony looked up to the princess, but never saw her for who she truly was...that is with exception of two ponies.

“...As much as I love my sister I can’t understand why my student is so enamoured with her.” Celestia thought to herself, “I admit she is cute...”

Celestia stripped out of her clothes, a sigh of relief escaped her lips as she stretched in front of the mirror.

“I just don’t understand why he didn’t notice me like that, am I not attractive to him?” Celestia posed and took a good look at her body. A long prismatic mane that came down to her waist framed her face perfectly, soft full kissable lips and a small mischievous glint in her eyes, “Is it my height?” Celestia knew she towered over other ponies considering she stood 6 foot 5 inches in height, even the tallest pony she knew only stood 2 inches shorter than herself.

She examined her reflection closer, and wondered if Dusk didn’t like big mares but quickly dismissed the thought, her own sister was J cup so that couldn’t be the case. Celestia looked down at her huge full breasts, she gave one of them a squeeze which caused her to let out a small moan.

“H-haah...I-I guess it has been awhile...” Celestia moaned, surprised at her own sensitivity. Celestia’s gaze travelled further down, she admitted she was rather plump but she did enough exercise to keep in shape, it was just how her frame was. She had wide foal bearing hips, which she knew her sister envied her for and seemed to catch the guards attention when she walked by them, even if they thought she wasn’t looking.

She turned around so she could she her full plump plot on display in the mirror. She gave it a firm squeeze, and left out a satisfactory grin at it’s softness to the touch. She squeezed her soft plush backside again before giving it a quick slap, which caused her plot to jiggle slightly.

“I just don’t get it.” Celestia muttered to herself, “I’ve been the fantasy of many a stallion and mare alike, so why doesn’t Dusk see me that way?”

Many a perverse thought came to Celestia’s mind, causing her to grin.

“Maybe I could just order him to worship his princess.” She considered the thought, “or should I teach him more than just magic? I’ve always had a soft spot for student-teacher romances.” She bit her lower lip, and rubbed her thighs together, “I can see it now, a naughty student sent to the Principal’s office, and the delicious punishment she would give him...” She quivered at the thought, unconsciously her hand started to trial down until it reached between her legs, “And the risk of getting caught...h-haaahh!”

Celestia couldn’t help herself as she fell back on her bed, rubbing and teasing herself as she drifted off into her own personal fantasy.

“I-I...I could order him to eat me out under my desk while I dealt with those damn stuck up nobles.” She smiled at the thought, as she threw her headback and let out another blissful moan as her own touch was getting rougher by the moment, “I could tie him up, rut him senseless and keep him all to myself.” Celestia drove herself further into a blissful pleasant madness at each fantasy she could come up with. She bit down on her lip, as she tried to hold back a moan.

Each skilful caress of her wet sensitive marehood drove her further and further toward her climax. She let herself get lost in her own lustful daydreams, and let wave after wave of pleasure wash over her.

“O-oh Dusk...” She cooed, “R-right there...fuck your princess...oh f-fuck...” She could feel herself build up to a climax, and to the attentive observer the sun seemed to shine a bit brighter. “Oh...n-no...I-I’m going...I-I’m going to....HAAAAAAHHHHHHH!!!!!”

Celestia quivered and whimpered as her orgasm washed over her. She panted, and wiped the sweat from her brow...She sighed once she realised that it was all just that, a fantasy.

“...I just don’t get it...” She whispered to no-one, “Why doesn’t he notice me like he does Luna?”

Author's Note

Sorry for the chapter delay, hope you enjoy it.

• Silent out.