Flash and Supergirl Crossovers
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Certain is perfect for love by Ancillary - 'JXN reviews
Doubts are harmful. Doubts turn to fear. But most of all doubts show the true colours of two people who are a match made in heaven that haven't seen the opportunity placed in front of them until Barry has finally made the decision before regrets.
Rated: K - English - Romance/Hurt/Comfort - Chapters: 1 - Words: 3,373 - Reviews: 8 - Favs: 25 - Follows: 23 - Published: 8/9/2018 - Barry A./The Flash, Kara D./Supergirl - Complete
The Space Between Two Worlds by Vowell reviews
Barry Allen, a forensic scientist for CCPD and the Fastest Man Alive. Kara Zor-El, last Daughter of House of El and Supergirl. As the Scarlet Speedster was trying to defeat his worst enemy, he accidentally makes a breach into Supergirl's universe. But was this really a mistake?
Rated: T - English - Romance/Friendship - Chapters: 2 - Words: 10,848 - Reviews: 11 - Favs: 38 - Follows: 49 - Updated: 8/7/2018 - Published: 7/14/2018 - Barry A./The Flash, Kara D./Supergirl
Shenanigans (In the Shape of Paws) by Artemis08Luna reviews
"Yeah so there's a really adorable bunny and a super hyper dog in the cortex, and I'm pretty sure those two are Kara and Barry and this cat right here is Oliver." KARIVARRY
Rated: K - English - Humor - Chapters: 1 - Words: 659 - Reviews: 1 - Favs: 57 - Follows: 26 - Published: 8/6/2018 - [Barry A./The Flash, Oliver Q./The Arrow, Kara D./Supergirl] - Complete
Karry Master's First Karry Challenge by Superflashdoggie reviews
Night before Barry Allen Wedding and issues occurred.
Rated: T - English - Chapters: 1 - Words: 311 - Reviews: 1 - Favs: 1 - Follows: 2 - Published: 8/4/2018
Worth It by FightAsOne reviews
Oliver has a nightmare, but he also has Barry and Kara to comfort him. (Not as bad as the summary makes it sound)
Rated: K+ - English - Romance/Hurt/Comfort - Chapters: 1 - Words: 975 - Reviews: 1 - Favs: 15 - Follows: 9 - Published: 8/3/2018 - Barry A./The Flash, Oliver Q./The Arrow, Kara D./Supergirl - Complete
Luck is Just Another Word for Fate by PercyPotter123 reviews
When Barry tests out his newfound speed, he gets a huge surprise in Kara Danvers/Supergirl. Watch as a lucky encounter becomes much, much more. Like World's Finest except Siobhan isn't evil yet and Alex and J'onn aren't fugitives. Everyone in the DEO knows J'onn's true identity. Karry or SuperFlash. I do not own anything of the Arrowverse. ABANDONED
Rated: T - English - Adventure/Romance - Chapters: 15 - Words: 57,824 - Reviews: 71 - Favs: 138 - Follows: 147 - Updated: 8/3/2018 - Published: 1/13/2018 - Barry A./The Flash, Cisco R., Kara D./Supergirl, Alex D.
Batwomanverse Crossover by ArrowverseWriter2018
How Batwoman should be introduced in the crossover and how the full crossover could go.
Rated: K - English - Sci-Fi/Drama - Chapters: 3 - Words: 2,835 - Favs: 4 - Follows: 3 - Published: 8/2/2018 - Barry A./The Flash, Oliver Q./The Arrow, Kara D./Supergirl, Alex D.
When Universes Collide by superorphan reviews
What if Barry Allen comes out of the Speed Force on Earth-38? This is a Supergirl season 3 re-write with Barry on it.
Rated: T - English - Romance/Adventure - Chapters: 4 - Words: 9,058 - Reviews: 25 - Favs: 67 - Follows: 91 - Updated: 7/29/2018 - Published: 1/12/2018 - Barry A./The Flash, Kara D./Supergirl, Alex D., J'onn J./Martian Manhunter
That Kind of Love by Artemis08Luna reviews
Barry enlists Winn's help with something. Kara assumes the worst and Alex has a cold gun. (Karry story written for the KryptonianPotato) ESTABLISHED KARRY
Rated: K+ - English - Romance/Humor - Chapters: 1 - Words: 2,559 - Reviews: 2 - Favs: 31 - Follows: 15 - Published: 7/24/2018 - [Barry A./The Flash, Kara D./Supergirl] Alex D., Winn S. - Complete
don't deserve it by Artemis08Luna reviews
(IMAGINE YOUR OT3) Person A: "hey can you hand me a saucepan" Person B: "no but here's a saucy pan" Person B: *hands them Person C* Person A: "… Goddammit how long have you two been planning that" ESTABLISHED KARIVARRY
Rated: K - English - Humor/Romance - Chapters: 1 - Words: 248 - Reviews: 2 - Favs: 34 - Follows: 13 - Published: 7/23/2018 - [Barry A./The Flash, Oliver Q./The Arrow, Kara D./Supergirl] - Complete
Worlds finest trio by KryptonianPotato reviews
Who knew an alien invasion could bring people together? Certainly not any of our heroes. But when the earths mightiest heroes come together to defeat the dominators, what happens to the earths finest trio, will change their lives, forever. (Karivarry) writen for Artemis08Luna's birthday.
Rated: K+ - English - Romance/Sci-Fi - Chapters: 1 - Words: 789 - Reviews: 3 - Favs: 10 - Follows: 13 - Published: 7/22/2018
I wanna ask why (but I'm still stuck on the how) by Artemis08Luna reviews
Barry, Kara and Oliver all switch bodies. That's it really.
Rated: K+ - English - Humor/Romance - Chapters: 4 - Words: 4,281 - Reviews: 6 - Favs: 71 - Follows: 48 - Updated: 7/21/2018 - Published: 1/1/2018 - [Barry A./The Flash, Oliver Q./The Arrow, Kara D./Supergirl] - Complete
Once Upon A Dream by Artemis08Luna reviews
Music Meister just wouldn't give up, would he? This time, he's put Kara, Oliver and Barry through another one of his dreamscapes only this time? They have to go through MULTIPLE plots. OR: my excuse to put Barry, Kara and Oliver in Disney movies. Chapter 2: BEAUTY AND THE BEAST; Chapter 3: HERCULES
Rated: T - English - Humor/Adventure - Chapters: 3 - Words: 30,764 - Reviews: 10 - Favs: 33 - Follows: 38 - Updated: 7/20/2018 - Published: 1/14/2018 - [Barry A./The Flash, Oliver Q./The Arrow, Kara D./Supergirl]
The New Normal - A Millma Verse Earth by Captain Sigma- Karry Co-Master reviews
When Rach of Paranormal returns from the past, she finds her world is not the same as she remembered it. AU Flash. Part of the Millma Verse.
Rated: K - English - Adventure/Family - Chapters: 3 - Words: 14,630 - Reviews: 18 - Favs: 10 - Follows: 6 - Updated: 7/20/2018 - Published: 7/10/2018 - Jay G./The Flash, Alex D., Winn S., Agent Vasquez - Complete
Starting to Remember by FightAsOne reviews
Kara is lost and confused. Barry is just trying to help his friend. What could happen?
Rated: K+ - English - Friendship/Romance - Chapters: 1 - Words: 1,270 - Reviews: 8 - Favs: 11 - Follows: 16 - Published: 7/20/2018 - Barry A./The Flash, Kara D./Supergirl
Team SuperFlash by KryptonianPotato reviews
After the events of Zoom and Non, Barry goes to earth 38 to see Kara. Will their friendship evolve into something more? And how will they face a threat, where more than their individual cities are at stake.
Rated: T - English - Sci-Fi/Romance - Chapters: 8 - Words: 6,814 - Reviews: 36 - Favs: 62 - Follows: 81 - Updated: 7/18/2018 - Published: 12/3/2017
what they desire most by Artemis08Luna reviews
If they could look into the Mirror of Erised, what would they see? (NO PAIRINGS)
Rated: K+ - English - Friendship/Family - Chapters: 1 - Words: 1,704 - Reviews: 1 - Favs: 7 - Follows: 4 - Published: 7/18/2018 - Complete
AU Injustice Year 1 by DueWizard8 reviews
After exiting the Speed Force Barry comes back with one goal, to marry the love of his life: Kara Danvers. He'll soon find that a Regime is starting to develop.
Rated: T - English - Romance/Adventure - Chapters: 5 - Words: 11,743 - Reviews: 24 - Favs: 40 - Follows: 43 - Updated: 7/18/2018 - Published: 9/10/2017 - Barry A./The Flash, Oliver Q./The Arrow, Kara D./Supergirl, Clark K./Superman
In Her Hands by Artemis08Luna reviews
Kara Danvers is Supergirl, but Supergirl is not Kara Danvers. (ESTABLISHED KARIVARRY) Please read author's note before reading!
Rated: K+ - English - Angst/Tragedy - Chapters: 2 - Words: 1,901 - Reviews: 6 - Favs: 15 - Follows: 10 - Updated: 7/12/2018 - Published: 7/6/2018 - Barry A./The Flash, Kara D./Supergirl - Complete
We Fight Episode 4: THe Big Guns by BlownAway18
It will be a little shorter Fic as this Episode Four. It's still the crossover, and in this one, the villains are back. Skye, Mona, and Arianna are my original characters, but Arianna's name of Scarlet Witch belongs to Marvel. Everyone else belongs to the Arrowverse. Those of you who are Felicity, one of these parts she will get Bitch out by.
Rated: T - English - Drama/Adventure - Chapters: 3 - Words: 1,440 - Favs: 3 - Follows: 2 - Published: 7/7/2018 - [Barry A./The Flash, Dr. Caitlin S.] Kara D./Supergirl, Lena L. - Complete
identities by Artemis08Luna reviews
There is a taser in the man's hands, holding it up to his face threateningly. He's just been tased, he realizes. "Tell me the identities of the Green Arrow and Supergirl." He doesn't mean to, but he laughs. Out loud, he guffaws quite uncontrollably because of course that's what they had to ask. (he doesn't know) KARIVARRY
Rated: T - English - Romance/Tragedy - Chapters: 1 - Words: 2,361 - Reviews: 3 - Favs: 36 - Follows: 20 - Published: 7/5/2018 - [Barry A./The Flash, Oliver Q./The Arrow, Kara D./Supergirl] - Complete
Mundane Things by Artemis08Luna reviews
There's this dark cloud that looms over them, reminding them of their expiry date. They're in high school and they're young, but they're not stupid; they know they'll all disperse across the nation in pursuit of attaining an education for the career path they've chosen for themselves. She doesn't want to think about it. She wants to be selfish. KARIVARRY HIGH SCHOOL AU
Rated: K+ - English - Romance/Drama - Chapters: 1 - Words: 1,102 - Reviews: 1 - Favs: 10 - Follows: 6 - Published: 7/3/2018 - [Barry A./The Flash, Oliver Q./The Arrow, Kara D./Supergirl] - Complete
Jailbreak! - A Mutant Earth & SuperEarth Crossover by Captain Sigma- Karry Co-Master reviews
Team SuperFlash attempt a daring escape of a prisoner on another world. Will they succeed, and what will be the repercussions? Part of the Millma Verse.
Rated: K+ - English - Adventure/Drama - Chapters: 4 - Words: 24,052 - Reviews: 31 - Favs: 16 - Follows: 10 - Updated: 7/2/2018 - Published: 6/11/2018 - Barry A./The Flash, Cisco R., Kara D./Supergirl, Alex D. - Complete
We Fight Episode 3: Anything Is Possible by BlownAway18
Author's Notes: Every show in the Arrowverse is in this, and this is my version of heroes vs. Aliens that includes my originals characters Skye and Arianna, but the name sake of Scarlet Witch belongs to the Avengers. #SnowBarry #BreakingTheMadness SuperCorp Slow Burn
Rated: T - English - Sci-Fi/Drama - Chapters: 4 - Words: 2,761 - Favs: 4 - Follows: 3 - Published: 7/1/2018 - [Barry A./The Flash, Dr. Caitlin S.] Kara D./Supergirl, Lena L. - Complete
hashtag relationship goals by Artemis08Luna reviews
"Our friends and fans keep telling us that we're apparently the living embodiment of relationship goals. You be the judge." KARIVARRY YOUTUBER/VINER AU (A sort of sequel to "I just want people to stop rooting me with only one of you")
Rated: K+ - English - Romance/Humor - Chapters: 1 - Words: 1,007 - Reviews: 3 - Favs: 37 - Follows: 16 - Published: 6/30/2018 - [Barry A./The Flash, Oliver Q./The Arrow, Kara D./Supergirl] - Complete
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