It was high noon. The Ponyville library's books flooded the floor. Rune was rummaging through books, using his magic to move book after book around him. Briefly skimming through the contents, then tossing the book aside in disappointment.

"Not here!" Rune said, tossing the book in front of him aside.

"Not there!" Rune repeated the process.

It was several minutes until a silhouette stepped out of Dusk's room.

"Any luck yet?" The silhouette asked.

Rune turned to face the silhouette:

"AHHAHAHHHAAAHHHHAAAAA!!!!!!!!!!!" Rune laughed and laughed at the mare Dusk.

"Oh SHUT UP!" Dusk shouted. "Did you find the cure or not!"

Still muffling his laughter and catching his breath, Rune composed himself. "I found a cure but you won't like it. So I'm trying to find an alternative cure. But no luck."

"I'm afraid to ask." Dusk took a deep breath. "What was the first cure?"

Trying his best not to laugh, Rune gave a very serious look to Dusk. "You have to experience a mare's pleasure."

"I decline!" Dusk immediately replied.

"Well, that was fast." Rune said. "So you're against that plan?"

"Yes!" Dusk responded. "I know I've been forced, hypnotized and even drugged into having sex. I wanted my first time to be with my special somepony!"

"What about that time with Rainbow Dash when you all tripped out on Poison Joke?" Rune asked.

"We agreed NEVER to bring that up!" Dusk loudly stated.

"Okay so I can't find an answer!" Rune stated, dropping all the books. "I know, I'll ask Celestia!"

"Princess Celestia?" Dusk inquired. "I figured you ask Princess Luna for help."

"Oh no no no." Rune responded. "Luna is still sleeping. I don't want to ruin her beauty sleep."

Rune took up a quill and scroll:

Dear Princess Celestia,

There has been a small mishap with our latest spell. By COMPLETE accident, I turned Dusk into a mare. What would you recommend is the best action to fix this?"

Sincerely,

Dawn Rune

Rune then zapped the scroll with some magic and poof it was gone.

"I didn't know you could send scrolls to the Princess." Dusk said.

"How else was I able to send messages to Luna?" Rune answered.

Within a few moments, Rune's horn glowed orange and a scroll appeared before him.

"Oh that was quick!" Rune said surprised.

Quickly opening it:

Dear Dawn Rune and Dusk Shine,

Don't move!

"What does that mean?" Dusk asked.

Suddenly a bright flash of white light came from behind Dusk. A white portal appeared behind him/her. In one swift motion, Princess Celestia's head poked out of the portal. Doing a quick look around the room, Celestia saw the mare Dusk.

"Mine!" Celestia whispered, using her magic to levitate Dusk and pull him into the portal.

There was a moment of very......awkward silence.

"Well............" Rune had to really think of what to say that made this situation make sense. "That just happened."

"What just happened?" Trixie asked, coming out of her room.

"Oh hey Trixie." Rune responded very casually.

"Why are there books everywhere?" Trixie asked.

"Oh well it's a long story......." Rune began his tale. "A few hours ago, Dusk and I were reading up on new spells to learn and in my haste I accidentally cast the wrong spell. And so Dusk became a mare. Not finding any useful cure, I contacted Princess Celestia and she just appeared here and mare-napped Dusk."

"That wasn't a long story." Trixie stated. "And we have to help him....or her."

"I'm working on it." Rune responded. Using his magic to lift up the books, placing them neatly on the shelves. "Trixie tell me......How do you pleasure a mare?"

Trixie, in one swift motion, smacked Rune across his face with the back of her hoof. "WHAT KIND OF QUESTION IS THAT?! You PERVERT!"

"I have a good reason this time..." Rune dragged himself up. "The cure is apparently that Dusk has to experience a mare's pleasure. So what would you recommend?"

Trixie sat down and put on her thinking expression. She had an idea of what to say but she didn't want to reveal any of her sexual interests or fetishes to a pervert like Rune.

"Oh I see." Rune said aloud to himself. "So rubbing the pussy and maybe even stick something inside it."

Trixie's face was in a blush. She forgot Rune can read minds. So.........she smacked him even harder.

"Thank you Trixie!" Rune thanked. "I'm off to ask the others."

.....................................................................................................................................................................

Inside a massive room of white marble, fancy throw pillows and a large, plushy bed of every color lay in the center.

"Princess?" Dusk asked. Dusk was laying on the center of the large bed. "Why did you bring me here?"

"Oh my curious student." Celestia stated, using her magic to gather something from a small chest in front of her. "I am seeing if this transformation is as accurate as it appears."

"Uh Princess?" Dusk was getting a little worried. He has been in situations like this enough times to know what could happen next.

"Ah it's on my patient pupil." Celestia said, closing the chest, revealing a white strap-on.

"What do you plan to do with that?!" Dusk said in a worried, almost scared tone.

"I plan on doing something I've wished for for a long while." Celestia said with a sly, very sensual tone.

.......................................................................................................................................................................

"So why is it you pester me?" Zecora asked Rune. "An even ask to see what shouldn't be seen?"

Rune quickly realized that if he tried to ask the other mares, especially Pinkie or even Rarity, he might of been beaten worse or even killed. So he went to Zecora, he felt she would give him the most help.

"I told you I need a spell fixed." Rune replied. "And the book I found said the only way was to have Dusk experience a mare's pleasure."

"I understand why you are here." Zecora replied, mixing potions into her cauldron. "But things are not as they appear!"

The cauldron bubbled, steamed and brewed. Sparks flickered and shot from the cauldron. Then"

SSSSSSZZZZZZZZZZZZHHHHHHHHHHH

The water was still and cold.

"So what just happened?" Rune asked.

"It seems we have a error." Zecora replied. "This makes me the bad news bearer."

"Okay, continue." Rune insisted.

"Found Dusk I have but beware." Zecora started brewing her cauldron again. The images of the Canterlot castle appeared in the bubbling water. "For he is deep within this lair."

"Wow I feel stupid." Rune laughed. "Where else would Celestia take him?" Rune was right out the door when he turned back to Zecora. "Oh yeah, Zecora can I have more of that passion potion?"

"Two you have already been given, what more do you need?" Zecora replied. "Are you inspired not by lust but by greed?"

"It's not like that." Rune responded. "I never got to use it for my purpose, I always had to use it to help out Dusk."

"Ah I see." Zecora walked over to a shelf of potions, using her mouth to grab the last bottle. "After this one, just let it be."

"Thanks." Rune replied. "So are these hard to make?"

"Nope." Zecora shook her head.

"Really, then why only make three?" Rune asked.

"Why should I rely on petty tricks." Zecora responded. "When I could simply ask to see their dicks."

"See this is why I like you ." Rune laughed. "You're fun! Well I'm off, thanks for the potion!"

Rune ran out the hut. In a flash of light, Rune teleports himself back to the library. The flash from his arrival startled both Spike and Trixie, causing Trixie to spill her glass of cider all over Spike.

"Really?!" Spike shouts. "Couldn't use a door, had to just flash in here? Really?!"

"Hey Spike." Rune responded, ignoring Spike's earlier comment. "I need you to get me a scroll and quill. Thanks!"

Despite his objection, Spike brought Rune what he wanted.

Sitting in his room, Rune wrote a letter:

Dear Luna,

Sorry if I woke you up, but I need some help.

I may or may not of accidentally turned Dusk into a mare. I didn't want to disturb you, so I asked Princess Celestia for help. All she did was mare-nap Dusk through some portal.

Awaiting your response,

Rune

Despite being like five in the afternoon, a letter popped out of the air in front of Rune.

"Wow!" Rune said aloud. "Didn't think she'd be up."

Briefly reading the letter:

Dear Rune,

Don't move!

Rune assumed what that meant.

"YAY!!!!!" Rune excitedly shouted. "I'll get pony-napped too!"

......................................................An hour passed.........................................................................................

Rune was sitting on his bed, sitting in the corner of the room. Black rain clouds hovered over him.

"Sadness.........Depression........" Rune exaggeratedly complained to himself.

"Oh why so melancholy?" Said a voice from a dark corner of the room.

Rune looked over to the source of the voice. Walking out of a dark corner was Princess Luna.

"Luna?" Rune said, still a bit saddened but at least she finally showed up.

"Yes Rune." Luna's eyes had some bags under them. Her mane, though still flowed beautifully, looked a little uneven. It was as if she just woke up and rushed to get ready. "Our apologies. When we sent you a reply, we accidentally fell back asleep."

"Okay." Rune's mood lightened more. "That makes sense."

"But enough of our excuses." Luna suggested. "We must find out what our sister plans to do with a female Dusk."

"Well I found out they are at the castle." Rune answered. "But I couldn't find any other details."

"If our sister was to hide herself, why hide at the castle?" Luna asked.

"Hide in plain sight." Rune quoted. "That's what you told me once."

"We did didn't we." Luna started piecing everything together in her mind. "Excellent work Rune, come we must stop whatever my sister plans."

Starting to walk towards the shadowy portal Luna made earlier, a thought struck Rune.

"So why is it such a big deal to "stop" Celestia?" Rune asked.

"Although she does not like when we speak of this." Luna turned to Rune. "You must understand. Over a thousand years ago, our sister used to have a massive harem of ponies at her disposal."

Rune was taken a bit off guard by that. "WOW!" 'Kinda wish I lived back then.' He quietly thought.

"Though stallions were often capable of pleasuring our sister." Luna continued. "It was always the mares that she loved to have her way with. Eventually it got to the point of an addiction. Despite the great disapproval of this, our father ordered that the custom of having a harem was to be disbanded. Celestia took it very hard. She even had to be confined to her room for several weeks."

"Wow." Rune remarked again. "Did you have a harem?"

Luna's face went out into a small blush. "NO!" She shouted. "We considered the idea once or twice and even met several stallions that were kind to us. But we believed that such actions should only ever be with one special somepony, not several at once!"

"I see." Rune replied. "So you're saying that Celestia is into mares and is probably defiling Dusk right now?"

"Blunt. But accurate, yes that is what we are fearing!" Luna remarked.

Without any other words, both Rune and Luna walked through the portal. Within mere moments, both of them were at the Canterlot Castle, more specifically, the hallway leading to Celestia's room.

Walking down the halls the two ponies were met by several guards.

"Sorry your Highness." One guard spoke. "But Princess Celestia ordered us to insure she is not disturbed. I'm afraid not even by you." Despite sounding confident, all the guards were nervous. They've never told a Princess what to do, so this was new to them.

"You shall belay that order guards!" Luna was speaking in her royal voice, but a little more subtle. She didn't want to reveal her location to her sister.

The guards were shaking, they didn't know who'd they'd rather have angry at them; Celestia or Luna?

"Bbbbb,.....But we hh-have our-" The guard stuttered but was cut off by Luna's serious glare.

"What do you have guard?" Luna's gaze was piercing and subtly terrifying.

"Nnn-nothing your highness!" The guards cracked under Luna's pressure.

"Excellent!" Luna thanked the guards for being so understanding.

At the end of the long, very bright hall was a large wooden door, with large golden suns and stars embroidering it. Around the door was a faint yellow, glowing field.

"Looks like there's a barrier." Rune stated the obvious. "So what do you think we should do?"

Rune turned to see Luna:

"We are going to knock." Luna implied. With a swift kick of the hoof, the came flying off it's hinges.  

CCCCRRRRRAAAAAAAAAASSSSSHHHHHHH

The door flew, scattered across the floor in splinters and fragments.

Rune and Luna slowly walked in the room, all action hero slow motion-like.

"SISTER!" Luna shouted in her Canterlot voice. "WHAT HAST THOU DONE TO OUR ROYAL HUSBAND???!!"

The mare Dusk was lying on her stomach, across Celestia's bed. The strap-on was now gagging her mouth while Celestia was just pulling her hoof from out of Dusk's gushing pussy. Dusk's face looked like she enjoyed what she went through. Her pussy was gaping and squirting love juices. Guess she orgasmed a lot, Dusk probably didn't even know what was going on. She looked a little in and out of it.

"Neat!" Rune exclaimed, pulling a camera out of nowhere, taking a picture of the situation.

"I.....I can explain." Celestia desperately tried to explain.

"SILENCE!" Luna angrily shouted. "Rune! Take Dusk home. NOW!"

Rune didn't screw around. He grabbed Dusk and teleported back to Ponyville.

Back at the library Rune, not finding anypony around, quickly and quietly brought Dusk to his/her room. Rune was even nice enough to tuck him/her into bed.

'I wonder if Luna will come by when she's done?' Rune thought to himself. So he decided to stay up late.

It was around two or three hours when Rune felt Luna's magical presence nearby.

"Oh Luna." Rune said, watching Luna emerge from a shadowy portal.

Luna wobbled and struggled to walk over to Rune's bed, where she plopped on to the bed.

"We used up too much energy yelling at our sister." Luna said with a yawn. "We don't wish to see her for a while. SO we shall stay here."

"Of Course!!!" Rune said very ecstatically. Then looking at Luna, who was now fast asleep.

"I'll take the floor I guess." Rune whispered, tossing his blanket on Luna, rolling out a spare blanket and laid on the floor.

Before going to bed, Rune used his magic to pull a small black book to him. On the book was fancy silver letters spelled: "Black Mail". Flipping through the black mail book, Rune quickly glanced over the pictures he has taken so far.

Some with Rarity in a messy appearance, she looked like she was angrily chasing the camera-pony (Rune) away. Another was an image of Trixie choking down a large slice of birthday cake. Finding an empty page, right next to the one with a sleeping Fluttershy in lingerie, Rune stuck the picture of Celestia with her hoof inside a female Dusk. With that little add to his "collection" Rune drifted off to sleep.

In the morning, noon-ish to be specific, Rune awoke to the sound of knocking at his room door. Getting up, to see that Luna was not on his bed, he did notice that his bed was neatly made. Rune opened the door to see, the now male again, Dusk at the door.

"Morning Rune." Dusk said.

"Morning." Rune tiredly replied.

"Something must of happened yesterday, cause when I woke up, Princess Luna was here, cooking breakfast with Spike." Dusk said.

"Oh you don't remember anything?" Rune asked.

"Nope." Dusk replied. "But Princess Luna said not to worry about it. So I trust her. Also, she left me a letter to give you."

Dusk handed Rune the letter.

"Thanks." Rune said, shutting his door.

Rune read the letter:

Dear Rune,

Our apologies for not waking you when we awoke. You looked kinda cute when you were asleep. We already cleaned thine bed and ate breakfast with the others. We were able to reverse the damage done to Dusk by our sister, we made sure to erase his memory of all of yesterday. The cure for the spell was NOT that he experience a mare's pleasure, the cure was to simply cast the spell again on Dusk.

Hope this incident shall never happen again,

-Luna

P.S. If you EVER try to sneak into our bed, while we slumber..........We will break off your horn.