Flash and Supergirl Crossovers
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In Another Universe by LiseBardKimley reviews
Kara Danvers is in for a surprise when Barry Allen, or the Flash, appears on her earth. But this isn't for a vacation (heroes never have those); Barry has reason to believe that in his universe, Krypton just exploded and two pods may be on their way to Earth-1.
Rated: K - English - Chapters: 8 - Words: 8,024 - Reviews: 17 - Favs: 67 - Follows: 59 - Updated: 9/29/2017 - Published: 5/24/2017 - Barry A./The Flash, Kara D./Supergirl, Alex D., Lena L. - Complete
Alternate Ending to Duet by Felicity Danvers reviews
Again bad at summaries Starts as WestAllen and Karamel ends as Karry/Superflash This is a really short one. This is a one-shot. Sorry, I don't really have the time or ideas to continue. This is Earth-47, well Barry's earth is, and Kara's is Earth-53.
Rated: K+ - English - Romance/Adventure - Chapters: 1 - Words: 925 - Reviews: 4 - Favs: 32 - Follows: 14 - Published: 9/27/2017 - [Barry A./The Flash, Kara D./Supergirl] - Complete
Almighty by fabargent reviews
When Kara awakens, it's dark. Beyond dark. It's almost pitch black. Except the green luminous lights that manage to dim before her. She tries to give her attentions to it. Tries to look for clues as to where she is in it's ominous glow. - Kara Danvers finds herself brought to Earth-1 by who, or what? She isn't quite sure. All she knows is, she's ready to find out [AU]
Rated: T - English - Mystery - Chapters: 1 - Words: 1,459 - Reviews: 8 - Favs: 17 - Follows: 27 - Published: 9/23/2017 - Barry A./The Flash, Iris W., Savitar, Kara D./Supergirl
Seems Like a Dream by FrenchToast24 reviews
Barry needs Karas help with a metahuman, but little do they know what the meta is capable of. It takes them to an alternate universe, where they have no powers and their lives are normal. Will they want to stay? Or will they fight to get home?
Rated: K+ - English - Hurt/Comfort/Friendship - Chapters: 1 - Words: 779 - Reviews: 3 - Favs: 4 - Follows: 3 - Published: 9/17/2017 - Barry A./The Flash, Kara D./Supergirl, Iris W., Mon-El
Cassie Danvers by serenitykid1378 reviews
Cassie Danvers travels to the past to fix her future. Supercorp. Snowbarry. Edited 9/18
Rated: K - English - Hurt/Comfort/Family - Chapters: 1 - Words: 8,387 - Reviews: 2 - Favs: 33 - Follows: 18 - Published: 9/13/2017 - Barry A./The Flash, Kara D./Supergirl, OC, Lena L. - Complete
Drunken Speedster by WolfKomoki
Of all the things that could have happened at 3:00 AM, a drunk Barry Allen stumbling into his apartment was not one of the things that Julian expected to happen. Who knew that there was an alien bar on Earth-38 that could get a speedster drunk?
Rated: T - English - Hurt/Comfort/Humor - Chapters: 1 - Words: 1,664 - Favs: 19 - Follows: 11 - Published: 9/7/2017 - Barry A./The Flash, Julian A./Dr. Alchemy, M'gann M'orzz/Miss Martian - Complete
I Won't Let This Happen by kbcountry37 reviews
Mon-El finds himself in the 30th century. He's found by a group of people who call themselves The Legion of Superheroes. Back in the 21st century, Winn and Kara have a plan up their sleeves to bring Mon-El back themselves, with some help from some friends, of course.
Rated: T - English - Angst/Romance - Chapters: 4 - Words: 9,554 - Reviews: 2 - Favs: 15 - Follows: 16 - Updated: 8/22/2017 - Published: 5/25/2017 - Barry A./The Flash, Iris W., Kara D./Supergirl, Mon-El
The House of El, Rising by Ariston-1 reviews
Meta-Humans. the scourge of 'Team Flash'. The arrival of a Highly Powerful Being calls for the Assistance of Kara Zor-El to Earth 1.
Rated: K+ - English - Fantasy/Adventure - Chapters: 3 - Words: 12,663 - Reviews: 1 - Favs: 6 - Follows: 7 - Published: 8/17/2017 - Barry A./The Flash, Cisco R., Kara D./Supergirl, Clark K./Superman - Complete
Don't Threaten Me With A Good Time by Ricky Pine reviews
***SPOILERS AHEAD FOR BOTH SUPERGIRL SEASON 2 AND THE FLASH SEASON 3. YOU'VE BEEN WARNED.*** Mon-El returns to National City, but he and Kara won't get much time to themselves. Not when Barry Allen drops by out of the Speedforce and Alex and Winn have some surprises in store for everyone.
Rated: T - English - Humor/Romance - Chapters: 1 - Words: 1,881 - Reviews: 2 - Favs: 18 - Follows: 13 - Published: 8/14/2017 - [Kara D./Supergirl, Mon-El] Barry A./The Flash, Alex D. - Complete
Supergirl v The Flash: When Two Worlds Collide by Fire Girl125 reviews
When Barry Allen stumbles upon National City following a fight with Zoom, he tries to blend in while finding his way home. There he meets Kara Danvers, and while a relationship develops, their superhero personas become enemies. But when Barry finds out Zoom is threatening to cease both worlds, The Flash and Supergirl are forced to team up in order to stop him.
Rated: T - English - Supernatural/Romance - Chapters: 11 - Words: 68,419 - Reviews: 133 - Favs: 203 - Follows: 244 - Updated: 8/8/2017 - Published: 7/19/2016 - [Barry A./The Flash, Kara D./Supergirl] Oliver Q./The Arrow, Hunter Z./Zoom
Sex & Loving Embraces by LilSunHi17 reviews
Love Between 2 Heroes Turns Steamy
Rated: M - English - Romance/Fantasy - Chapters: 1 - Words: 1,164 - Reviews: 9 - Favs: 28 - Follows: 17 - Published: 8/3/2017 - Barry A./The Flash, Kara D./Supergirl - Complete
Power Girl and The Flash by Captain Sigma - Karry Beta reviews
After the events of Flash's second season, Barry's life is turned upside-down when the clone of Kara Zor-El comes crashing back into his life. Discover what happens when Kara Wells learns about her past and her powers, and how Barry's feelings toward her affects their friendship. But danger always lurks for Power Girl and the Flash. - Alt. Flash season 3. Adult themes. Kara/Barry.
Rated: T - English - Adventure/Romance - Chapters: 22 - Words: 198,994 - Reviews: 230 - Favs: 179 - Follows: 160 - Updated: 7/28/2017 - Published: 6/21/2016 - Barry A./The Flash, Cisco R., Jesse Q., Kara D./Supergirl - Complete
All Heroes Fall by Natco reviews
Sur la Terre-1, les héros ne sont pas épargnés... Une météorite, un virus anti-kryptonien, des Martiens blancs, Mxyzptlk qui revient avec ses mauvais tours, et de la Kryptonite rouge pour parfaire le tout ! Kara, Alex, Barry, Cisco et compagnie ont la vie dure... Les personnages des univers Supergirl / Flash / Arrow ne m'appartiennent pas.
Rated: K+ - French - Adventure - Chapters: 16 - Words: 34,150 - Reviews: 10 - Favs: 7 - Follows: 2 - Updated: 7/27/2017 - Published: 6/3/2017 - Barry A./The Flash, Cisco R., Kara D./Supergirl, Alex D.
Crisis on Two Earths by Ewean reviews
As she loses her powers to Lex Luthor, Kara Danvers suddenly realizes she's no more than a human girl stuck on Earth-1. Well, at least she didn't die - though she didn't really know what was worse. But as a new threat is about to destroy both her and Barry's worlds, will she get back her powers or are the two universes doomed? Not a Karry fanfiction. Smallville elements.
Rated: T - English - Sci-Fi/Friendship - Chapters: 2 - Words: 6,791 - Reviews: 6 - Favs: 15 - Follows: 24 - Updated: 7/26/2017 - Published: 12/17/2016 - Barry A./The Flash, Cisco R., Kara D./Supergirl, Clark K./Superman
Last chance to save the world by Cw arrowverse stories reviews
*Using the DCTV characters* After the battle for earth between the villains and heros they have finally exhausted each other and many have died in the ongoing war. The others still fighting have been caught off guard by brainiac who attacked city's across the globe. The flash is the only one fast enough to stop him so he goes back in time and warns the other heros and villains.
Rated: K - English - Romance/Adventure - Chapters: 2 - Words: 1,572 - Reviews: 2 - Favs: 2 - Follows: 3 - Updated: 7/25/2017 - Published: 7/17/2017 - Barry A./The Flash, Cisco R., Kara D./Supergirl, Clark K./Superman
How it should have ended by Blue Handdcok reviews
How I think The Flash episode Duet Should have ended.
Rated: T - English - Adventure/Family - Chapters: 1 - Words: 57 - Reviews: 8 - Favs: 1 - Published: 7/24/2017
Random One Shots by Fireteam HAYS reviews
Random one shots from the randomness of my mind and possible requests.
Rated: T - English - Drama - Chapters: 2 - Words: 2,970 - Reviews: 4 - Favs: 1 - Follows: 1 - Updated: 7/22/2017 - Published: 7/21/2017
A little trip by OnceUponAGay reviews
Twitter Prompt given to me by @laurenseyes27 Kara and Lena travel to Earth-1 and Lena makes some new friends. Supercorp , Felicity/Caitlin
Rated: T - English - Romance/Friendship - Chapters: 1 - Words: 2,087 - Reviews: 1 - Favs: 21 - Follows: 10 - Published: 7/22/2017 - Kara D./Supergirl, Dr. Caitlin S., Lena L., Felicity S.
The Many Worlds Theory by dw7thdoctor reviews
Jay Garrick was enjoying a restful day at home when it is interrupted and things get a little confusing for him. Now he has to fight Kryptonians, meet legends, and fight an invasion from space all in effort to get home back to his wife.
Rated: T - English - Family/Sci-Fi - Chapters: 2 - Words: 3,667 - Reviews: 2 - Favs: 2 - Follows: 3 - Updated: 7/14/2017 - Published: 7/10/2017 - OC, Jay G./The Flash, Kara D./Supergirl
Barry and Kara by Kickstore reviews
Based on the story Romeo and Juliet. When Barry and Kara fall in love, conflict arose between it.
Rated: T - English - Romance/Tragedy - Chapters: 5 - Words: 2,968 - Reviews: 1 - Favs: 11 - Follows: 4 - Updated: 7/8/2017 - Published: 5/9/2017 - [Barry A./The Flash, Kara D./Supergirl]
Storm by Femslash08 reviews
My name is Cass Allen. When I was 11, my parent were taken from me. Detective West had to send me to Boarding School in England. I didn't go back to visit Central City on holidays. When my schooling was over, I stayed in the UK. One night, I was struck by lightning and became the fast girl alive with a few extra assets. But I was thrown into another Earth and couldn't return home.
Rated: M - English - Family/Hurt/Comfort - Chapters: 2 - Words: 3,884 - Reviews: 1 - Favs: 9 - Follows: 12 - Published: 7/7/2017
Another Way by LiseBardKimley reviews
What if someone else had turned up to save Mon-El instead of using the pod?
Rated: K - English - Chapters: 4 - Words: 3,129 - Reviews: 6 - Favs: 29 - Follows: 19 - Updated: 7/7/2017 - Published: 5/29/2017 - Barry A./The Flash, Cisco R., Kara D./Supergirl, Mon-El - Complete
Stronger Together by zac.sheldon429 reviews
Crossover story carrying on from Supergirl 1x18
Rated: M - English - Chapters: 2 - Words: 711 - Reviews: 2 - Favs: 12 - Follows: 13 - Published: 7/6/2017 - Barry A./The Flash, Kara D./Supergirl
SeX Stories 2017 by drummerboygw997 reviews
Read Chapter 1 for summary.
Rated: M - English - Romance - Chapters: 1 - Words: 87 - Reviews: 1 - Follows: 1 - Published: 6/30/2017 - Barry A./The Flash, Kara D./Supergirl
Kill, be killed or edit the timeline by Tabuu1900
A mashup of DC's current TV shows (Flash, Arrow, Supergirl and Legends) including an OC of mine that will be learned about as the story progresses.
Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 1,335 - Favs: 1 - Published: 6/27/2017
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