"IN THE NAME OF CELESTIA, ARE YOU INSANE?!" Twilight yelled at the top of her lungs.

Twilight, Discord, Cheese, and Pinkie all stood in the basement of the empire across from the mirror Discord had activated.

Everypony, including Discord, stared at Pinkie in awe.

"I'll go Twilight! I don't know what to expect in this world....but...."

Pinkie stared at the mirror. A rainbow shadow glowed around it, then around Pinkie's pupils.

"....I feel like it's calling me, telling me to go there."

Pinkie walked closed and touched the side.

"It's your destiny?" Discord finished. Pinkie nodded.

"B-B-BUT THERE COULD BE DANGER LURKING! WHAT IF IT'S A WORLD OF DEMONS AND THEY KILL YOU!? WHAT IF IT'S A WORLD OF SEA MONSTERS AND THEY EAT YOU?! ZOMBIES PINKIE! ZOMBIES!!" Twilight shouted all at once. Discord put his paw on her shoulder.

"Twilight remember....this is Pinkie Pie. She can handle anything, even a world of chaos." Discord reassured Twilight, who still seemed worried.

"BUT YOU NEVER KNOW WHAT MIGHT HAPPEN?! PINKIE IS GOING SOLO-"

"I'll go too."

Twilight, Discord, and Pinkie turned to Cheese quickly in awe.

"Oh great, first Pinkie and now YOU!?" Discord complained. Cheese took a deep breath.

"Twilight is right about the danger and being killed stuff, but Pinkie is also right..."

Cheese put his hoof around Pinkie.

"...you never know what to expect." Pinkie blushed and smiled brightly.

"If she's going to take a risk, then I want to be a part of it! Besides.....no party pal of mine is going anywhere exciting without her biggest fan!"

Pinkie stared at the mirror, then at Cheese and smiled, then faced Twilight firmly.

"Let me do this Twi!" Cheese stood by Pinkie's side.

"...Let US do this!" they both said, proudly with their chests held up high.

Twilight took a deep breath, closed her eyes, then opened them once again and looked at the party couple. They were determined to risk their lives for her.

"They're so bold to go, can't say no now." Discord replied caringly. Twilight sighed in defeat.

"Six days, you will discover this world. Get as much research as you can, stay together no matter what!"

Pinkie squealed, "You mean?"

"Yep. You two may head to this world together!"

Hearing that made both Pinkie and Cheese squeal like crazed-fangirls jumping up and down.

"ONLY SIX DAYS YOU TWO!" Twilight reminded them demandingly, Discord put his paw on Twilight shoulder.

"Twilight...don't ruin the fun." he advised. Twilight sighed, then replied to him with a sly smile.

Pinkie and Cheese had rode on the train, along with Rainbow Dash, Fluttershy, and Applejack.

Rarity had been off on vacation with Sweetie Bell to Manehattan to help Coco Pommel with a fashion line.

"OOOOOHH! I'M SO NERVICITED! I can wait to go to this new world! It's gonna be SO AWESOME!" Pinkie squealed with delight.

"I know! Who knows what kind of food they have there? Or what kind of parties we can plan?" Cheese added.

"Now now, don't get too worked up y'all. It's only for six days time and it's only research! Nothin' more." the country pony said, trying her best to be supportive.

"Oh c'mon AJ lighten up! There going to a new world! Who knows what could occur!?"

"Speaking of which, I'm gonna check out the food cart, want anything Pink?" Cheese asked.

"One of those DELICIOUS RED VELVET CUPCAKES WITH THE STRAWBERRY HEART SPRINKLES!" Pinkie replied, getting all in Cheese's face.

He nodded, then headed to the food cart.

As soon as he left, Rainbow smirked at Pinkie very deviously.

She then flew by her, and sat in his spot.

"So...you and Cheese huh?" she said, putting her elbow on Pinkie's shoulder.

"What do you mean?" Pinkie asked in confusion.

"Oh you know what I mean." Applejack raised her eyebrow.

"What she means is, do ya' fancy Cheese a little?" Applejack restated.

Pinkie blushed nervously, "What do you mean?"

Fluttershy giggled, "No need to hide it Pinkie, we can tell that you like Cheese."

"I don't like him, I mean he's a good friend and all but I don't like him all like that. I mean.."

"Oh c'mon! He calls you Pink..."

"Gives you cupcakes."

"Offers to go along on a dangerous quest with you."

With what her friends were saying, it sounded as if Cheese liked her, which made Pinkie's face become as red as a cherry.

"Maybe he likes me, I just don't like him back."

"Mmmhmm...." Fluttershy, Applejack, and Rainbow Dash all stared at Pinkie with a raised eyebrow.

The cart door opened, and Cheese had returned with a pack of gummy worms and the cupcake Pinkie had requested.

"Sorry I took so long! Some old lady was gonna take you cupcake, so we had to have a game of checkers and guess what?! I WON! So not only to have a delicious cupcake, you have a winning cupcake!" Cheese exclaimed.

"Wow Cheese! That's so-" Pinkie stared at her friends, who all smirked at her and laughed.

"-nice..." Pinkie finished, with her whole face red as cherry pie.

Twilight paced around the mirror, waiting for Cheese and Pinkie impatiently.

"Where ARE they?!" Twilight asked demandingly.

"I'm sure they'll be here soon Twilight, you just have to wait." Cadence reassured her.

Twilight, Cadence, Discord, and Shining Armor were all in the main hall, along with the mirror activated by Discord.

"Besides, they probably stopped at the candy store or something. Knowing Pinkie Pie she sure would have. " Discord said, rather irritated.

Everyone soon heard the clash of hooves down the hall.

Pinkie, Cheese, Rainbow Dash, Applejack, and Fluttershy all ran in the room and were out of breath.

"We....made it." Pinkie said, hitting the floor. Cheese picked her up.

"GREAT! We can get this over and done with!" Discord said, with a lot of annoyance.

"Discord!" Twilight snapped.

"Alright alright!" he replied, with a fake plastered smile.

Twilight then faced Pinkie Pie.

"Alright Pinkie," she started, " In six days, you and Cheese are to do research on this world, nothing more! You may take a break if you wish, but research is you're main goal! So try not to forget that."

"Okie dokey!"

"Oh! I almost forgot! Discord, could you hand me that chest over there?"

Discord teleported it in Twilight's hooves. She turned to him very disgusted.

"Discord!"

The draconequus stared at her with disgust.

"What?"

The alicorn rolled her eyes, then opened the chest.

A silver bracelet with Pinkie's element of harmony charm levitated from the chest, then transported to Pinkie's wrist.

"This bracelet will let you and I have contact with each other. It's very fragile so be careful!"

"Okey dokey! Cross my heart and hope to fly stick a cupcake in my eye!"

After hearing that, Twilight smiled, and guided Pinkie and Cheese to the mirror.

"Be careful y'all!"

"Oh please don't get hurt!"

"Have an awesome adventure!"

Hearing her friend's encouragement and last words, Pinkie took a deep breath and faced the mirror.

She felt a hoof on her shoulder.It was Cheese, who smiled brightly and face the mirror too.

Pinkie hesitated and put her hoof in the mirror, afraid it might shock her as it did to Twilight. When she put her hoof through, she felt nothing, it had went right through! Amazed, Pinkie turned her head back only to see her friends, even Discord urging her to go through. She smiled, took another deep breath, and went completely through the mirror.

Before Cheese went through, AJ gave him a word of advice.

"Take care of her Cheese! With all yer might!"

Cheese nodded, "Will do!", and went through the mirror successfully.

Everypony in the room sighed.

"Oh goodness, it's only been two minutes, and I miss Pinkie so much." Fluttershy said sadly. Everypony nodded their head in agreement.

"I'm sure she'll be fine, she's Pinkie Pie. Who knows what'll happen."

Pinkie had her eyes closed while going through the mirror. After five minutes had passed, she opened them only to find out that she's falling in the sky.

"OH MY GOSH! AHH!" Pinkie yelped for her life. She saw Cheese across from her whose eyes were also closed.

Though he didn't look like himself.

He almost looked like an older version of Spike, only, his face still looked the same, and so did his hair. He had scaly arms and legs, a long dragon tail that resembled Spike's, and long legs. Pinkie then caught a glimpse of herself. She looked the same, only, her face and complexion seemed more female like. She had a puffy hot pink skirt and a pink lemonade t-shirt on, along with red-violet flats.

She stared at her appearance in awe, but was still horrified that she was falling from the sky.

"CHEESE!" Pinkie yelled desperately. Cheese opened his eyes, then screamed in horror.

"Pinkie! What's going?! Where are we?! What are we?! WHAT THE HAY IS HAPPENING-"

"Uh Cheese, as much as I'd love to answer your questions.....I THINK WE HAVE BIGGER PROBLEMS!"

Cheese looked down to see a sand based ground and looked back at Pinkie.

"Oh dear."

The two looked down at the ground and began screaming with their lives.

Once they both hit the ground, the two moaned while rubbing their head roughly.

"Ugh....that hurt." Pinkie said, rising up from the ground.

When she did she took a look around her. The scenery was astonishing. The clouds looked like floating flowers, the land she was now standing in didn't only have wavy seaweed grass, but also sand under it. This confused her a lot. Then, strang pink creatures started to float all over the place. Pinkie recognized the looks, they were......JELLYFISH?!

Cheese saw it too as he still sat on the ground. He stared at them astonishingly.

"Wow! I've never seen so many jellyfish in one place before. They're so....." before Cheese could finish his sentence, he saw Pinkie walk in front of him, reaching out a helping hand.

Jellyfish started to swarm around her in a heart shaped sparkling way with the sun shining. Pinkie had a bright smile on her face which lit Cheese up.

"Need a hand Cheese?" Pinkie said, still with her astonishing smile.

Cheese smiled, "Yes, most definitely."

Cheese had gotten up from the ground with the help of Pinkie. They both stared at each other with complete silence. Pinkie was still smiling and began to blush.

"Don't look at me like that..." she said, nudging her head down. Cheese lifted her head up.

"Why wouldn't I want to look at my admirer in such a astonishing way?" Pinkie giggled at that note, then faced Cheese once more.

"Pinkie I-" Pinkie shushed Cheese by putting one of her fingers on his mouth. She sniffed up something, and her mouth became all watery.

"Smell something gooooooooooooooooood." she said, in a hungering way, "and my Pinkie sense can tell me where it's coming from!"

Author's Note

So Pinkie's a appearance in this world is related to her appearance in the human world, she just looks more fish like.

I kinda mixed her appearance with Lagona from Monster High in my head

As for Cheese, he looks like how he should look like in the human world, but also is more fish-like.
(He looks like Gil from Monster High, only he doesn't have the jar on his head )