Sunset Shimmer the Doctor's Companion.

The whole gang, minus Shimmy, boarded the TARDIS, ready to head to their next destination.

The time was 3 o'clock in the frozen North Mountains in the EQG universe. The time, when EQG Sunset Shimmer disappeared nobody seeing her alive ever more.

There sat Sunset Shimmer, wrapped in heavy winter clothing. Flash Sentry sat next to her. He suddenly transfigured into Sunset Shimmer, the huge, ugly Kaiju. Before he could take a breath or try anything, he was surrounded by a force field. He then disappeared to a place only inhabited by robots.

"Greetings, and welcome to the Madame De Pompadour time prison. Please cooperate for your own good and safety..." the robots said, touching the kaiju, who didn't feel in any danger. He was quickly pulled into the endless darkness. He was done for.

The Doctor whispered to Sunset Shimmer, who was with him, while he folded his Sonic Screwdriver, "There, now he's en-route to the time prison where he will have to pay for his crimes."

“Good, but now what’s up with my other me? I mean, she's alone on the mountains…” Sunset Shimmer asked with confusion laced in her voice.

The Doctor said, “She had been in the TARDIS, right now she knows more than you about time travel but this whole reality is rewriting itself, if we enter the TARDIS now, you and Flash Sentry wouldn't be erased. Also, you guys can’t come back to this universe after this."

“Well, I’ll pick another place so we can hang the hat. Perhaps Equestria. Hey Flash, would you be my little pony?” Sunset teasingly said.

The Doctor, surprised at Sunset's quick thinking commented, "Wow, you pick up fast on things. Also, your Alicorn self had been erased, you're back as a Unicorn."

"Thank Celestia. Being normal is all I want." Sunset replied, wiping her brow, relieved that she was going to be back to normal.

The Doctor then replied, "Sunset you aren't normal. You will always be one of my 'impossible girls' like Clara. Never forget that, alright?"

"HEY!" Flash Sentry commented, offended. "'Little pony?' I'm not that small!"

“Why?” Sunset asked the Doctor, ignoring her boyfriend..

“Resuscitating people, for instance." the Doctor answered.

“Doctor, don’t forget that I can't revive anyone now.” Sunset Shimmer said back. "I won the ability by killing the kaiju and becoming... Well, the only me. Now that the kaiju is jailed... Well, you know the rest."

Meanwhile, in the Madame de Pompadour prison, one of the robots scanned the foe. After detecting no life signs, it radioed to the corpse retrieval team.

"If it's alive, you would just lose some power. But due to your Equestrian origins, plus your unicorn form there, you won't lose all of it. Are you happy now?" the Doctor said in reply.

"Uh, yes. I think... that's a lot to digest..." Sunset said, weaving her hand through her hair as she took in the information.

"Then it's fine. The TARDIS force field will protect your abilities. But no planet blowing for you!" the Doctor informed her.

"Planet blowing?" Sunset Shimmer asked. "Really?" she asked again, getting no reply from the Doctor.

All them then embarked on the TARDIS to ‘T0’ EQG universe, the present.

"Thanks, I have to say goodbye to all of the girls... It's tough considering that I'm leaving for good." Sunset said with a sad smile.

After scratching his nose, the Doctor replied, "Look, Sunset. You can actually meet them from time to time. Also, you can meet yourself like what Twilight did with Twolight."

Twolight then waved to Sunset, “Hey...”

“Thanks, that’s nice. I feel curious after Shimmy though… Doctor, you think I can meet her when we land?” Sunset asked hopefully.

“Indeed you can.” the Doctor said with a smile.

The TARDIS landed on Canterlot High, the gardens were in perfect condition. There was no sign that the kaiju was there.

“Uh, Doctor? Did we come before the kaiju or something?" Sunset asked with a bit of confusion.

“No! That happened yesterday, but on another timeline! When we came and saved Sunset Shimmer we caught the Kaiju, he’s on dimensional prison with criminals and…” the Doctor said.

Her jaw dropping open slightly in awe, Sunset Shimmer muttered, "Wow..."

Behind her, Flash Sentry went over to his club, Sunset Shimmer following him into the hallway. She found the student everyone nicknamed "Mouse", (Actually he preferred to be called 'MicroChip', but yep dude, not on my guard) Approached him.

"Hey, Sunset. What's up?" he said with a small wave.

"Hey." Replied her

Sunset Shimmer rushed over to the Doctor. She tucked a few strands of hair behind a near before commenting, "It's strange. Y'know, having memories of nonexisting timelines and everything. Almost apologized him."

"He never knew what you did, Sunset. It's OK," the Doctor said as he lay a comforting hand on Sunset's shoulder.

"Yeah, I know. But I still feel terrible for, well..." Sunset ended awkwardly. She looked the Doctor in the eyes and sighed sadly.

“Accusing him without enough evidence?” the Doctor ended.

"Becoming a demon?"  Added Flash coming out of the lift with many bags.

“Yep, basically.” Sunset Shimmer agreed.

“It didn't happen. The timeline when it happened doesn't even exist. Forget it and stop feeling bad, it's gone." the Doctor said as he attempted to comfort the sad Sunset Shimmer.

Shimmer commented to her boyfriend "You has gun, gotta travel?"

"Hardly." Flash Sentry answered, rolling his eyes. "It's just some stuff I don't want to leave here."

"Excuse me, are you Sunset Shimmer? Well, from Equestria, that is?" someone asked behind her.

Sunset did a 180 turn, and saw herself. The only difference was that the new Sunset had glasses and had the Dimensional Device that Twolight used. "Such a sight for sore eyes..."

The two quickly engaged in a conversation, first talking about their differences, then about boys.

"Now I'm with Flash, having fun." Sunset said with a smile at her twin with glasses under the moniker of "Shimmy". Then, pointing at the Portal Detector her twin held, she asked,"When did you become such a smart cookie?"

"This? It's from Riv- er, I mean Twolight. She came to tutor me from time to time. Did you forget? Oh, perhaps it just didn't happen on your timeline yet." Shimmy answered with a smile.

"Ya, I guess so." Sunset Shimmer agreed.

"Pretty smart though, getting with Flash," Shimmy said with a giggle. "He can be really sweet sometimes!"

The two Sunset Shimmers embraced themselves in a hug, ignoring the Doctors' shouts not to.

"Stop! Don't! Wait, why is nothing happening?" the Doctor said, clearly confused.

After breaking up the hug, Shimmy smiled and said, "Look, Twilight had a theory that a paradox could happen. So she made this ointment that separates us." she then showed Sunset a glass jar labelled 'C2H4N7'. "We actually never made contact because of it."

"Thanks, paradoxes are very real and can get very ugly, unless they solve by themselves, which is boring" the Doctor said with a yuck face  "But Sunset, you aren't from this dimension. So anything that would happen would be my fault."

"It's nothing." Sunset said casually.

"As for my ointment, I made that up to put you at ease. It's actually just Aloe Vera, smooth skin is pretty skin. But you owed me a hug from seven years ago." Shimmy said with a smile.

"Did I already say how smart you are?" Sunset said with a chuckle.

The Doctor began walking towards his Machine, while he began explaining, “Delta twenty-seven, Sol three, time 4.600.240.452.010. That's where we're going."

Sunset Shimmer was awestruck and Shimmy came to her rescue, saying, "I think he means Dimension 27 and the third satellite of a world called Sol and the time is about ours."

“Sol is actually their star’s name, there known as Sun. Three means it’s the third world orbiting Sol. And she's right about the time.” the Doctor corrected.

Sunset then had to ask, “And what happens? anthro-pig life forms terrorizing locals? Robots that can kill with just a touch? Clockwork automata? Aliens with acidic blood?”

"Not the first three. And about the forth, yuck!" the Doctor said as he made a vomiting gesture. "It's more common than that. Just a little intergalactic war."

Ooh, good! Can I come too?" Shimmy asked with a grin on her face.

Light cruiser, conqueror class, name: Erebus. Crew: 12,000 soldiers. Weaponry: Phased plasma rifles and teuron bombs capable of erasing a solar system.

High above the crew lay the command bridge. There sat the invader army's commander, Cinos te Oiram.

"Commander Cinos, we left the Interdimensional portal." the ship's pilot informed him.

Upon hearing that, Cinos took out a photo showing various figures. There was a pink female figure and two smaller infants. Cinos looked at them and said, "Soon. For the Teuran Empire!!" at that same moment, the Eresbus was inhaled by a small dog, that before sneezing, had run away from the alley where the TARDIS just materialized.

The TARDIS door opened and the Doctor said, "Listen. They may be small, but they can blow up this whole planet unless the world's leaders comply with whatever they feel like."

“Small whims.” Flash Sentry mused. Flash was holding a device made of a metal rod with black holes on its sides and asked, "Hey, Doc? What does this thing do?"

Behind Flash, Shimmy came out. Her hair was now nicely curled. She grabbed the device before saying, "That's my pocket hair curler, sweetie."

With a touch of over protectiveness, Sunset Shimmer, coming out behind Shimmy asked, "Sweetie?"

"Sorry, force of habit..." Shimmy said sheepishly as she put the hair curler away.

“Good. But any-ways, I'm digging your hairdo." Sunset said, relieved. "But why if I can ask?”

Shimmy then said with a shrug,“It would spoil our cover, two exact copies walking around. No way, that can't happen. Oh, also we must find another name for me. Something like Melody or...”

"Deal." everyone quickly agreed.

“So that was a hair curler? Weird." Flash said as he scratched his head.

“It’s a Sonic Curler, inspired by my memories from the Doctor." Shimmy said with a smile."It can do a lot beyond curl.”

The Doctor, overhearing that commented, “I'm not entirely happy with that.”

Shimmy just replied, “Not un-inventing it.”

“Simply, don’t misuse it.” the Doctor warned.

“Okay, Daddy.” Shimmy said. Then the curler began beeping on PAR of the Sonic Screwdriver.

“Guys, remember why we’re here. Our, or at least my Sonic detected Teuron technology.” Shimmy, or now Melody said to get everyone back on track.

"They were here and planted the bomb? Where?" Flash Sentry said nervously, looking around. "This can't be good."

“The Teuron had been on this alley. We need to find it. Then I’ll get rid of the bomb.” the Doctor said with confidence in his voice.

But suddenly Melody took charge of the situation. She operated her curler, walking down the cul de sac, the curler beeping steadily. “They aren’t here any more. A local life form ate them. I also don’t detect any bombs.”

“Care to pass that by me again?” the Doctor asked.

“If there was a bomb, now it isn’t. It’s not here." Shimmy said with a bit of confusion.

“But how can a bomb simply disappear?” the Doctor asked, now with a blatantly obvious hidden agenda.

“Me! Me!” Twolight said, reminding everyone she was there. She did little jumps, clearly giddy. “I- It disappeared on the sub-space thanks to an Einstein-Rosen bridge!”

“Do you mean a wormhole?” asked Flash Sentry. Upon getting confused looks, he said,“Hey! I sleep with Sunset, I know some things!”

“He’s correct.” Twolight said with a nod of the head. Sunset at the time was fuming at Flash.

“But why would the Teurons do that?” Asked Twolight, Sunset nodding now at her in the background.

“The Teurons in the far past were the good guys. Perhaps they were just rogues that didn’t plan on blowing up this planet.” the Doctor theorized.

“Or they had bigger fish to fry…” Melody added.

“Such a random comment you said Riv... Er, Melody. Do you care to introduce us?” the Doctor said, correcting his faux pas.

“Watch your mouth, sweetie. Any ways, I'll tell you later.” Melody said to the uneasy Doctor.

The Doctor felt now a new spring in his step for an unexplainable reason. He grilled Melody, . “Sooo, do you found something else?”

Melody got increasingly daring on her interaction with the so-called Doctor, approaching somewhat fierce to him. “According to my Sonic, neither. They disappeared with their kaboom load.”

Sunset then had to ask her twin, “Any ways, when you did your Atomic Curler?”

Melody replied. “In a boring weekend two summers ago. Also, isn’t atomic, is electro-chemically powered.”

"So you just made this whole device just like the Doctor's in a weekend?! Even when you've just seen the device for mere minutes?" Sunset asked with surprise, knowing the answer.

"Smart, huh?" Melody said with a smirk.

The Doctor then tried another approach, he simply said, "Not smart, River..."

Melody/River had a revelation, “Doctor! Or rather, delta cubed sigma x square, oh you know it’s such a mouthful. Oh my, did I just say all of that?"

The Doctor, or rather D^3 for short, hugged Shimmy weeping slightly, “River! I saw you dying!”

"I died, my body got destroyed. I had no regenerations left since Germany, but found this spiritless body and crashed here. It's cosy. But eventually, Shimmy's spirit seemed to return. Now we share, we got a nice condo together." Melody/River said as she hugged the Doctor.

Sunset Shimmer then interrupted, "One moment, so now you are two people in the same body? By the way, River beats the name Shimmy. So that’s a good thing.”

River answered, “No no no, Shimmy is still here too.”

Switching the voice over to Shimmy, she said, “Hi, Sunset! We share memories, such a good time. Oh River, you have to tell me what’s the deal with leather jeans. They seem rather… Unhygienic.”