AN: So, not my original plan for my first multichapter fic, but this Idea legit came to me right before bed and I had to write it out, so here we go, I've always wanted to see how Kara would react to meeting other speedsters, being she's only really have met Barry. Also I might be creating the biggest crack ship ever, but what the heck, Kara/Jesse could be cute :3c

It was a surprisingly quiet in National City ever since Kara returned. No anti-alien terrorist attacks, no cyborg maniac trying to destroy Supergirl and Superman, nothing. Kara wasn't complaining, though,being she had just got back from fighting against a whole swarm of aliens on another earth, so the silence was gladly accepted. She had more time to be a normal person, to actually go to work at CatCo and deal with a crappy boss. She actually had time to spend with Winn and James and Alex outside of Supergirl business. She even had time to visit Kal-El in Metropolis. The world was at peace and it didn't seem like any earth, or multiverse, shattering events were going to occur. And it was... perfect.

Kara landed on the balcony at the DEO, dressed in full Supergirl attire and a playful smile. She sped over to Winn's side, excited to tell him the new she had just received.

"Winn, Winn! Guess what!" She practically jumped him as an attempt to get his attention away from the computer he was typing on. Winn released a frustrated sigh before turning finally facing the giddy Kryptonian.

"What is it Kara?" He spoke with a tired and frustrated tone, causing the blonde's eyebrow to raise, now curious about what had the former IT so agitated. She shrugged the thought off for a few seconds, still overly excited about the information she withheld.

"Kal-El said he might be coming to National City for the weekend! Which means, you get to see Superman again!" Kara nearly yelled telling Winn, even in the process grabbing and shaking his hand violently. The annoyed look on the male's face quickly adjusted to one of excitement equal to the blonde.

"Wait, Superman is coming again! I've been wanting to ask him so many questions since he first came and if he's coming back that means I actually can ask him them, I mean of course how he shaves is one of them, but-" Winn starts to babble before getting cut off by an alert sounding from the computer he is no longer facing. His eyes widen before quickly swerving around in the chair to face the now flashing monitor. "That's new..."

"Care to tell me what that alarm is Mr. Schott" A slightly irritated J'onn enters the main room, followed shortly behind by a confused Alex. The three people all turn toward the man who was furiously now typing away on the keyboard in front of him.

"THAT... Is an alarm that goes off when there is a reading on interdimensional activity" Winn says, still focusing on the monitor ahead of him while typing. Alex and J'onn exchange a very confused glance before turning back to the agent.

"And how exactly did you find a way to track interdimensional activity, Winn?" Kara asks, have a very obvious annoyed undertone, making Winn almost hesitant to answer the question.

"I may or may not have borrowed your interdimensional extrapolater and done some tests on it..." The male finally admits with some hesitance, giving an extremely sheepish look to the annoyed Kryptonian. "Hey! In my defense, we need to know when you vanish off into another dimension, or need to know when a threat could arrive through another dimension."

"And for all we know this could be Barry, and he probably tried to call me to let me know, but I wouldn't have known because my interdimensional communicator was stolen from under my nose" Kara almost growls at Winn, who almost shrinks under the hero's gaze before quickly turning back to the computer typing.

"Well be glad he did, because if there is strange activity happening, we need to know where and be there. For all we know this could be a threat, and we need to get there as soon as possible" Alex says in defense of Winn's action, even though she agrees it was a stupid move to steal it from Kara instead of just asking her for it. J'onn nods in agreement to the senior agent's comment, making Winn slowly return to normal size, only to shrink again at the evil glare his friend is giving him through the corner of his eye.

"Found it! There is a portal-"

"Breach" Kara quickly corrects.

"Breach... appearing I'd say two blocks from the CatCo building, it's even on the same side that you fell out of the window when we met Barry." Winn spouts out a location, and turns around only to see the Martian and Kara both gone, and Alex on the phone, realizing probably no one heard the comment about Barry. He gives a small pout before returning to the monitor to continue tracking the activity.

"Maggie, hey can you get a force over at the CatCo building, we might have an unwarranted guess coming and we rather be safe than sorry.

oOo

Kara and J'onn both sped to the location that Winn had given them, keeping eyes on the ground for any sight of the breach, which Kara had described to the Martian as they were flying. They both came to a stop in the air when a large blue breach was floating a few inches above the street, cars and people stopping, not entirely sure how to react. At the Martian's signal, the two made a quick descent toward the strange opening, while keeping a safe distance from it. Landing a few feet in front and behind it, the two hero's exchanged a glance of caution. Kara, having seen and interacted with one of these before, slowly began to approach it, only for a bright flash of yellow to come speeding past her and the breach to close. Now being able to see each other clearly, Kara and J'onn's attention was turned to the blur of bright yellow that had went past both of them. Only seconds later were they in the sky in pursuit of the mysterious yellow light. Kara had slightly better luck keeping up with it, while J'onn was lagging behind.

"Kara, do you know what that thing is?" J'onn voice rings through the comm in Kara's ear as she bent and weaved through her city.

"Not really. It looks like the flash, but it seems smaller and the lightning seems brighter..." Kara examines as she avoids multiple buildings in attempt to keep up with the yellow blur speeding through the cities. They finally exit city limits and enter the open terrain.

Finally. Now I can actually be serious! Kara thinks to herself before taking off at an even faster pace, creating a sonic boom behind her. She speeds ahead of the yellow lightning, finally getting the advantage. The advantage doesn't last long when there is another sonic boom below her, and the blur is almost miles ahead of her.

"What the-" Kara mumbles under her breath, she had to be at least going Mach 1.5, maybe even Mach 2, how the hell was this thing faster than her? An annoyed grunt slipped through her lips before she continued to pick up speed, again closing the distance between the two. She had a slight advantage in this terrain, being she could make a straight shot in the sky while the person below seemed to be bound to the ground, so they had to follow the paths of the earth below. Finally managing to overtake the speedster by a good 100 miles, she made a sharp descent in the middle of the other's path. Slamming onto the earth below she is greeted a few seconds later by dirt on her boots and wind rushing past her. Quickly turning around, Kara's eyes are greeted by a human figure standing in a defensive position.

A female, looking maybe 22 at most, was wearing a red suit with yellow and black accents on the the shoulders and around the waist. She wore a red mask that fit tightly against her face and her brown hair was tied behind her head in a tight ponytail. Kara took nothing of the female's appearance until her eyes noticed an emblem on the center of the female's chest. A black lightning bolt was striking over a white background. The symbol was familiar, only taking a few moments for the Kryptonian to actually point the origin of the memory.

"Flash...?" Kara mutters under her breath, but loud enough for the other female the react. To them, the tone of Kara's voice was ominous and almost threatening, their defensive position grew. Her blue eyes flashed with a golden light before the female raced forward, landed a strong punch in the middle of Kara's chest, turned around and was gone into the wind. Kara realized only a moment too late that the other female moved, getting pushed to the ground by a punch and a strong gust of wind.

"Kara? Kara? KARA!" A now extremely irritated Alex filled her ears, causing Kara to snap out of the haze she was put in by the emblem on the female's chest.

"Y-Yeah... I'm here"

"Kara, what the hell is happening out there?" Alex growled, having been tracking her sister on the radar for miles, only to find her stop.

"I'm not entirely sure. " Kara says, taking to the sky, allowing her vision a better chance to sweep the surroundings in search for the yellow lightning. "I lost them though... I'm heading back" Kara whispers before flying off straight toward the DEO.

oOo

"What the hell happened out there?" Alex snapped the moment her sister's feet made contact with the floor of the DEO balcony. J'onn was already back in his human form and was standing behind Winn, who was still happily sitting at his computer.

"I was chasing her, managed to get ahead of her even and cut her off." Kara started, still trying to figure out why the hell that female had Barry Allen's symbol across her chest.

"Then why the hell isn't she here right now? And why the hell did you not respond to me screaming in your ear for five minutes?" Alex quickly went to interrogate her little sister, extremely annoyed that she had been ignored when her sister was out on a mission against an unknown force.

"Because... I got distracted okay. There was something about her that just didn't seem to add up." Kara responded sheepishly, terrified of her sister's harsh tone and cold stare.

"You keep saying 'her'. This was a female?" Winn interjects, picking up on the subtle hint that was the pronouns being used by Kara.

"Yeah, I managed to cut them off, only to discover it was a female, and she had the Flash's emblem on her chest."

"And what does this emblem look like?" J'onn asks Kara, who was now sitting in one of the plush spiral chairs. Before Kara had a chance to answer Winn was typing on the computer and a picture was pulled up. It was the same picture that Kara had shown Winn after she returned from her adventures on Earth-1. Winn began to zoom in until landing atop a lanky brown hair male wearing a scarlet full body suit. Winn continues to process the picture until they had a good view of the emblem that sat in the middle of his chest. A golden lightning bolt was going though a bright white background, all within a golden ring.

"When did you download that photo?" Kara glares at Winn only to be interrupted by Alex once again.

"This is the emblem you saw on the female's chest?"

"No... Her emblem was smaller, and it had a black lightning bolt facing the opposite direction." Kara clarifies, not only to the group but to herself. But you couldn't blame her for thinking it was the same emblem, being it had many striking similarities.

"And you think this mysterious speed demon has some relation to our friend Mr. Allen" J'onn asks once again, zooming out to get a full view of the photo that Winn had pulled up onto his computer. He had yet to see what Barry Allen looked like, and now that he did have a face to the name, he was surprised on how young the hero looked.

"Actually, it's speedster, and I would guess. I said 'Flash' and she reacted, hitting me in the chest and ran off. Maybe she think's we're an enemy of the Flash? If she know's Barry, then she can't be a bad person, right?" Kara was just making suggestions here, still trying to figure out any relation this person had with Barry. She only knew of two speedsters, those being Barry Allen, and the villain he fought named 'Zoom'. So this female speedster was news to her.

"We can't be sure, but we need to track her down. Mr. Schott, have you managed to locate our guest's location."

"I have actually, thank you for asking! I figured out that wherever she goes, she leaves a cellular dead zone behind her, which now that I think about it, explains why I kept dropping calls when I was standing around Barry... Anyways! I managed to track her. She is in National City, actually, right outside L-Corp, and she seems to be moving fast." Winn explains still typing. Before has a moment to continue there is a gust of wind behind him and a loud boom of Kara taking off.

"I guess we're going to L-Corp" Alex mumbles before signaling her regular force to follow her downstairs, in hopes to get there before the confrontation between these two ended.

oOo

Kara landed on Lena Luthor's balcony, which caused the CEO to jump in her seat.

"Supergirl. And to what do I owe this visit?" Lena asks very calmly, already over the initial shock that was the caped crusader entering.

"We are tracking an unknown entity, and they were last tracked here. Has any of your siren's gone off Lena?" Kara asked, using her X-Ray vision to begin scanning the lower levels of L-Corp.

"No, but I have one of the best security systems in the city, so I would have known if there is an unknown entity within my building." Lena says quickly, defending her own security. The two were suddenly thrown off by a yellow blur of lightning to speed through the office, then leaving.

"What was that?" Lena asks, as soon as she collects herself, only to turn and find Supergirl leaping off the balcony.

"Got eyes on the mysterious speedster, in pursuit now." Kara barked through her comm, seeing the yellow lightning heading through the city again. This time she knew how they moved, so she could almost predict their next choice on where they were turning. However, this time they weren't trying to exit the city, they were staying within the city limits. Kara mutters a small curse word under her breath.

"This person is smart." Winn says through her comm before Kara can say the statement, the entire time him watching this chase going down.

"J'onn, can you see if you can try and cut her off, if she is staying within the city, it should be easier to predict her destination"

"Already ahead of you, Supergirl" Kara smiles as she see's a green blur go by her in the sky.

"Uh oh" Winn mumbles quietly, but loud enough for both the agents in the sky to hear it.

"Uh oh?" Kara is the first to ask, still keeping her eyes on the golden streak passing through the traffic.

"I understand why she went into L-Corp..." Winn says in an almost defeated tone, still clicking away on the DEO keyboard in front of him.

"What do you mean?"

"She's covering the entire city in cellular dead zone... and if she does that-"

"We won't be able to track her." Alex finishes the statement, only to get a confirmation from Winn. Kara's eyes narrow, in annoyance, and in an attempt to zoom in on the speedster zipping below her.

"Wait, if she's doing that, then we should know where she's going next. We just need to go to a location which isn't already a dead zone, she will be heading there eventually, all we need to do is be there when she get's there" Kara says quickly, formulating the plan quickly. She stops in mid air, waiting for a destination to fly to, while keeping her eyes trained on the other.

"The abandoned warehouse where you fought Livewire and Silver Banshee for the first time isn't a dead zone yet. And it looks like she's heading in that direction anyway. Better meet her there" Winn says with a proud tone. Kara only smiles and speeds toward the location. She lands inside of the building, through the same hole she made when fighting here with Barry. J'onn appears a few seconds later, deciding to stay hidden behind some empty created. Kara, however, decides to stay in the open, ready to confront, and hopefully, talk, with this mysterious woman.

oOo

Almost 10 minutes pass, Alex and her team appear and all take positions out of sight. Kara still standing alone in the middle of the warehouse. Another 5 minutes pass before the sound of static fills the Kryptonians ears. She would be in the same room as her in maybe a minute, most.

"She's coming. Be ready to block off all exits" Kara commands everyone in the room, all going completely silent. The dark warehouse is suddenly filled with yellow lightning. Suddenly all DEO Agents and J'onn move, blocking all entrances before the female could make a hasty get away. She skids to a stop, letting everyone get a glimpse at the female speedster. She was now face to face with Kara, her blue eyes locked with her.

"We aren't here to harm yo-"

"How do you know the Flash" The female spoke, her voice is distorted, almost as if it's vibrating. She still stood at a defensive position, her eyes moving around the room. She was obviously looking for a way out. Kara had to move fast.

"I met Barry Allen last year. We worked together" Kara spoke softly as she approached the still tense female. Her posture slowly loosened at the mention of the name Barry.

"So you are friend's with the Flash?" She asked again, now standing up, looking less likely to run away, her voice was still vibrating however.

"Yes. He helped me with some villains last year. I swear I mean you no harm. My name is Supergir-"

"How come I've never heard about you before? You obviously seem like a hero." She asked again, her eyes now trained on the skirted female walking closer to her.

"I mean, this may sound weird but we are from different Earths." Kara could see her blue eyes widen behind her mask. The female's entire body language changed suddenly. "I know the idea of the multiverse is wei-"

"I know what the multiverse." The brunette cut Kara off quickly, her voice no longer distorted. Kara gave herself a mental facepalm. Of course she knew about the Multiverse, why else would she be creating temporary dead zones.

"What earth am I on?" The brunette asks sternly, taking a step toward Kara. Kara could hear the rising of guns, but used her handle to signal the agents to lower them.

"Um... Earth-38... According to Cisco Ramon" Kara answered. At this moment she noticed the brunette place a hand on the bridge of her nose, and started rubbing it through the mask that sat upon it.

"Fantastic. Dad's going to kill me" She mumbles under her breath ever so slightly.

"I'm sorry... but who are you exactly?" Kara finally asks the question that was on the her mind since the beginning of this conversation. The younger female raised her eyes to Kara's and removed her mask. Her face only confirmed how young the female was, and her bright blue eyes were much more apparent.

"My name is Jesse Quick. And I am about 36 Earth's away from home."

AN: So yeah, Supergirl and Jesse Quick. This should be fun! Please remember to leave a review and give feedback, it is always appreciated. Also feel free to ask questions, I will answer them all ASAP. Next Time: How Jesse Quick Arrived on Earth-38