Sunset Shimmer, Gilda, and the human Twilight Sparkle stood outside Canterlot High School, looking at what had once been the pedestal to a statue. Gilda stood closest to it, arms crossed over her chest as she looked at it, one eyebrow raised up.

"So, this is the portal to the pony world?" she asked. "Not what I imagined."

"What did you expect?" Twilight asked.

"It is supposed to be ancient and magical, right?" Gilda motioned at it with a hand. "I was imagining it would be bigger, with a massive golden frame with all the... little... decorative... thingies..."

"Filigree."

"Right, that. Plus, I thought there would be colors moving and swirling across the surface. Like in the movies, or cartoons, or something."

"Well there are colors and lights when it's used," Sunset Shimmer replied. "Which should be any second now."

"And which one of you destroyed the statue that used to be on top of it?"

Several seconds passed before Twilight -- blushing very brightly -- let out a cough and slowly lifted her hand up. Seeing this, Gilda's eyebrows shot out before she rolled her eyes and let out a snort.

"Wow. I was just kidding around. Didn't think I would actually find out one of you destroyed it."

Before Twilight could defend herself (which -- admittedly -- was not much of a defense), the mirror lit up with brilliant light. It went from bright white to a rainbow of colors, swirling and twirling across the previously reflective surface. The light flashed brighter as a figure stepped out.

As the light faded, Princess Twilight Sparkle stood there in her human form. She stood there with her hands out, balancing herself as she once again got used to standing on two legs instead of four. As usual, she was dressed in a pale blue blouse and purple skirt with a pink starburst on the side. A smile appeared across her face at the sight of her friends.

A second flash of light blinded the on-lookers as someone else came through the mirror portal. Princess Twilight turned around, reaching out to grab a hold of the new arrival and keep them from falling.

However, she missed, letting out a gasp of surprise as she stepped back.

As the light cleared, the new pony turned person came into view. She -- for it was a woman -- was dressed all in black, with dark purple skin, and dark red hair. Reaching out with her left, she pushed to get up, but ended up rolling onto her side and grunting out. When she did, the others noticed something that surprised them.

Her right arm was missing.

A fact that she happened to notice herself.

"Twilight? Why do I have a forelimb missing?" she asked in a calm voice.

Princess Twilight reached down, taking a hold of the woman's left hand and pulled to help her up to her feet.

"It's called an arm," she stated, taking a hold of the woman to keep her upright. "As for what happened to it..." Her brow furrowed as she looked at part in question.

A part of the limb was there. There was clearly a portion that protruded from the shoulder and downward, but it ended shortly above where the elbow would have been located.

"Honestly, I haven't seen anything like this before," Princess Twilight stated. "If I were to speculate, I would guess that since the humans don't have horns or magic normally, the transformation may have given you an analogous disability in this world."

Seeing the new arrival fully, the word that went through the heads of the others was "Amazon." She was taller than even Gilda, and definitely pass the six-foot mark. Her exact build was hidden by the long-sleeved, collared shirt and slacks that she wore, but her shoulders looked to be on the wider side.

Gilda glimpsed over to Twilight. Her Twilight. Sci-Twi, she had been told to refer to her as when there were two Twilights around. Sci-Twi was currently staring at the new arrival, eyes wide and mouth hanging open. It sent a pang of jealousy through Gilda to see her girlfriend looking at someone else like that.

"Did you hear that?" Sci-Twi cried out, grabbing a hold of Gilda's arm. "She has all her physical limbs in the pony world, but is a unicorn who is missing her horn, so when she transformed, she somehow ended up with a missing arm."

And with that, the jealousy vanished. If Sci-Twi was caught up in the scientific possibility of the mirror portal, then she was not drooling over the new arrival. It was not lust that had her staring wide eyed, but fascination the possibilities and implications of the change in forms.

"So," Sunset spoke up, getting the attention of the others, "are you going to introduce us to your new friend?"

"Oh, right," Princess Twilight said. A blush formed on her cheeks as she turned to face them. One arm reached out, wrapping around the waist of the new arrival. "Everybody, this is Tempest Shadow, my first royal guard and..." the blush on her cheeks grew brighter as she shifted. "...my... marefriend..."

She let out a cough and straightened up, the blush fading as she turned toward Tempest.

"Tempest, these are Sunset Shimmer, the Twilight Sparkle of this world, and her girlfriend, Gilda."

"Hold on," Tempest said. "Did you say the Twilight Sparkle of this world?" She stepped forward, her blue-green eyes (one of which had a scar across it) narrowing as she looked over the native Twilight Sparkle.

"Yeah," Sci-Twi said. "As near as we can tell, every person has a pony counter-part, and vice-versa." Her brow furrowed. "Well --" she glanced over at Sunset Shimmer "-- almost everyone."

"So, does that mean I have a counter-part here as well?" Tempest asked.

Princess Twilight stepped closer to Tempest, placing a hand on her arm.

"If you want, we can look her up for you," she offered. Her eyes glanced to Sci-Twi and Sunset, who nodded. "In the mean time, why don't we go get some lunch."

"And while we walk," Sunset added, "why don't you fill us in on how you two met."

Tempest Storm shifted, looking away.

"Well..."

The five of them sat a a booth in the back of the diner, far from as many people as they could manage. The food had been ordered, and sodas had arrived. Tempest Shadow and Princess Twilight had just finished telling the story of how they met. Sunset Shimmer was sitting back, arm crossed and an impressed look on her face. Sci-Twi was on her phone, looking up what she could of this world's Tempest Shadow. Gilda leaned forward, eyes narrow and eyebrow raised.

"So, let me make sure I got this straight." She pointed a finger at Tempest. "You met her when she came to take over Equestria, and managed to capture the three other princesses, before hunting you down and catching you as well?"

"Well... there's a lot more to it than that, but yes," Princess Twilight replied, shifting in her seat.

Gilda turned to Sunset.

"And -- if I remember right -- you turned into a demon, and planned on leading an army of brain-washed teens through the portal. Right?"

Sunset sank into the seat a little as she shifted, a light pink coloring her cheeks.

"Pretty much, yeah."

Gilda turned back to the transformed princess.

"Then there's Sci-Twi, that other pony she told me about, and the girl with the mirror." Gilda leaned forward, raising an eyebrow. "Is that how you deal with all your threats? Just make them friends, and trust them completely?"

"Not quite all," Princess Twilight answered. "We have used other methods to defeat enemies, and some that we do ally with have needed to prove that we can trust them, but befriending and trusting them is kind of the most common method for defeating threats to our kingdom, I suppose."

"Too bad we can't get countries in this world to work together so easily," Gilda mumbled to herself as she leaned back.

"Okay," Sci-Twi called out. "I found her." Her brow furrowed. "I think? I mean, I found someone who uses the screenname 'Tempest Shadow,' but according to their MyStable page, their actual name is--"

Tempest's hand shot out and across the table, covering Sci-Twi's mouth and stopping her from saying Tempest's actual name.

"Yes, Tempest Shadow isn't my birth name. No need to tell the entire table what it is though." She slowly pulled her hand away. "Just... can you check some other way."

The table got quiet as Gilda and Sunset turned to look at Sci-Twi. They were now curious about what "Tempest Shadow's" real name was.

Twilight, however, did not say. Instead she returned her attention to her phone, making a few quick flicks with her thumb.

"Well, luckily, she has posted a few pictures of herself on her MyStable page." She flicked a few more. "Fi-Tempest does look like you as near as I can tell." She held up the phone beside Tempet Shadow. "Even has the scar on the face and... missing... limb..."

"Does it say how?" Princess Twilight asked. "I mean, as far as I know, there aren't any Ursas in this world." Her brow furrowed as she turned to Sunset. "Are there?"

Sunset shook her head before replying, "Only regular bears."

Several seconds passed in silence as everyone watched Sci-Twi look at her phone for a long moment. She then shook her head.

"Sorry, no. At least, not in anything that's immediately available. It might be in an old post, provided she spoke about it at all. If you really want to know, I could have Smarty Pants search while we eat."

"Smarty Pants?" Princess Twilight and Sunset Shimmer asked together.

"Her home made, voice-responsive, AI personal assistant," Gilda explained.

"Was it named after a doll Shining Armor gave you?" Princess Twilight asked.

"Did you have one too?" Sci-Twi asked back.

"Yeah. It had this little note pad--"

"And a pencil--

"And we would do our homework together!" both Twilight's said at the same time, nearly squealing in excitement.

From the corner of her eye, Gilda caught a small smirk on Tempest Storm's face as she looked at Princess Twilight Sparkle.

"So cute when she geeks out over something, huh?"

"Is that what it's called?" Tempest asked, glancing between Gilda and Princess Twilight. A small smile tugged at her mouth. "Yeah. Kind of makes it hard to believe she's supposed to be a princess though."

The Twilights looked at their girlfriends, then away, blushing slightly. The only sound that could be heard was the snickering of Sunset Shimmer.

Sci-Twi let out a cough.

"So, about that post search?"

"Not necessary," Tempest answered. "But, thanks."

Before the conversation could go much further, the waitress arrived with their food.

"You three go ahead," Princess Twilight called out as they headed back for the school. She took a hold of Sci-Twi's wrist, giving her a smile. "I want to talk to Twilight alone for a moment."

Sunset, Tempest, and Gilda gave nods before heading further down the sidewalk, giving the two Twilights plenty of space.
Sci-Twi watched the others a moment before turning to Princess Twilight. Despite the friendly smile, Sci-Twi could not help but feel more than a little nervous. She liked the princess, and got along with her fine, but there was something about being alone with her other world doppelganger that was just so strange. Some part of Sci-Twi still could not get used to it.

"So, what did you want to talk to me about?" Sci-Twi asked.

Princess Twilight's smile shifted as she looked away from her counter-part, letting her gaze drift ahead to the others.

"I just wanted to say... I get it now. When I first heard about you and Gilda, I didn't understand. I even tried hanging out with the one from my world, and I didn't really feel anything." She leaned closer, placing a hand on Sci-Twi's hip. "But... after meeting Tempest, I think I get it. Strong, confident, and a little dangerous is a mix that is... appealing, and thrilling. Plus, when they hold you, you feel that strength around you. You feel safe... protected."

The Princess turned to Sci-Twi once more.

"It's not all there is, of course," she continued. "I mean, it's a physical attraction and all, but it's getting to know them, to peak under the armor."

"To see the soft and kind side of the big tough girl," Sci-Twi added, smiling.

"Yeah," Princess Twilight confirmed. "Exactly."

"Well, I'm glad you understand. And that you found someone you feel that way about as well."

"So am I."

Author's Notes:

So, as you can guess, I saw the movie. After watching it, I couldn't help but imagine Twilight Sparkle and Tempest Shadow together.
I had a plan for additional information on Tempest's human counterpart, but it seemed awkward to write in. So, I'll post it here, instead:

Tempest lost her right arm as a child after a car crash.She attends Storm Academy Military School.Human Tempest is into martial arts. She is trained in kickboxing, Taekwondo, and some Jujutsu, the last of which is somewhat limited and modified to compensate for her physical limitations.

I do want to do more with Princess Twilight and Tempest Shadow, but they won't be showing up here much (if at all).