Big Bang Theory
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I Am not Stupid
by percyjacksonfan135 reviews
AU. A lonely boy wishing for someone to love him. A young, eighth grade English teacher in California. They both feel mentally and emotionally bonded to one another for a few seconds. But in those few seconds, the teacher realizes something important. Not only does he truly love Penny, but he'll do anything to keep that little boy safe no matter the cost.
Crossover - Big Bang Theory & Harry Potter - Rated: T - English - Hurt/Comfort - Chapters: 7 - Words: 9,656 - Reviews: 11 - Favs: 46 - Follows: 61 - Updated: 9/23 - Published: 8/3/2015 - Harry P., Sheldon C., Penny, Zack J.
O naukowcach i pływających wilkołakach
Kanoniczna drabbelka, ponieważ taka rozmowa totalnie się odbyła!
Crossover - Big Bang Theory & Teen Wolf - Rated: K - Polish - Humor - Chapters: 1 - Words: 172 - Published: 9/20 - Sheldon C., Penny - Complete
The Love Conundrum
by mabelreid reviews
One Shot AU set in the summer between CM season 11 and 12 and TBBT season 9-10. Sheldon writes a paper on his experience with coitus and Amy isn't happy. Spencer shows up at a lecture Amy gives after visiting his mother and the two have a discussion about Sheldon and his paper.
Crossover - Criminal Minds & Big Bang Theory - Rated: T - English - Hurt/Comfort/Friendship - Chapters: 1 - Words: 3,208 - Reviews: 4 - Follows: 2 - Published: 9/12
The Many Worlds Interpretation
by A.A. Pessimal reviews
The wizards of Unseen University created a pocket universe. They learnt how to interact with it and to visit one particular planet. Where there is the USA. California. Pasadena. Caltech. Where other academically and scientifically minded people - with personalities as quirky as those of UU's wizards - strive to solve the mystery of the Big Bang. And then they met.
Crossover - Discworld & Big Bang Theory - Rated: T - English - Humor/Sci-Fi - Chapters: 33 - Words: 195,635 - Reviews: 89 - Favs: 42 - Follows: 42 - Updated: 9/9 - Published: 11/1/2013 - Hex, Ponder Stibbons, Leonard H., Sheldon C.
Nicktoons Unite Dimensional Destortion
by crossoverking18 reviews
Darkness is taking over the multiverse and it is up to the nicktoons to find new allies and put an end to the evil plans of the god of darkness, Surge.
Crossover - Sonic the Hedgehog & Big Bang Theory - Rated: K+ - English - Humor/Adventure - Chapters: 25 - Words: 105,093 - Reviews: 133 - Favs: 5 - Follows: 2 - Updated: 9/6 - Published: 10/1/2014 - Sonic, Tails, Sheldon C.
Sheldon has a dream that he meets The Flash
Crossover - Flash & Big Bang Theory - Rated: T - English - Humor/Adventure - Chapters: 1 - Words: 741 - Published: 8/28 - Barry A./The Flash, Sheldon C. - Complete
The Alex Interview Expropriation
by TV Tony
Alex Dunphy interviews to be an assistant to a decidedly idiosyncratic researcher. Thanks to my sister for the idea.
Crossover - Big Bang Theory & Modern Family - Rated: K - English - Humor/Friendship - Chapters: 1 - Words: 1,519 - Favs: 2 - Updated: 8/21 - Published: 8/19 - Sheldon C., Amy Farrah Fowler, Alex D. - Complete
Smart and Beautiful
by Erik9393 reviews
Two beautiful and educated women cross paths one day, and would soon become great friends.
Crossover - Law and Order: SVU & Big Bang Theory - Rated: T - English - Friendship/Drama - Chapters: 3 - Words: 3,348 - Reviews: 1 - Follows: 1 - Updated: 8/18 - Published: 6/15 - A. Cabot, Amy Farrah Fowler
The Walking Bang theroy
The cast of the big bang theory in the walking dead.
Crossover - Waking the Dead & Big Bang Theory - Rated: T - English - Drama/Fantasy - Chapters: 1 - Words: 372 - Published: 8/17 - Leonard H., Sheldon C., Rajesh K., Penny
The Mini Particle Accelerator Explosion
by LordPrisonerX reviews
Sheldon and his friends make a portal to the flash tv show
Crossover - Flash & Big Bang Theory - Rated: T - English - Adventure/Humor - Chapters: 1 - Words: 1,000 - Reviews: 1 - Published: 8/1 - Barry A./The Flash, Sheldon C. - Complete
The Symbiote Complication
by Logan GC reviews
When Penny enters Sheldon's room, she discovers why no one enters it. First fanfic, so please rate and review. Now Complete.
Crossover - Spider-Man & Big Bang Theory - Rated: T - English - Sci-Fi/Suspense - Chapters: 12 - Words: 20,147 - Reviews: 31 - Favs: 26 - Follows: 29 - Updated: 7/31 - Published: 6/16/2012 - Eddie B./Venom, Leonard H., Sheldon C., Penny - Complete
Pokébang: The Last Goodbye
by MCEProd22 reviews
In the final chapter of the Pokébang Trilogy. As C. Roger Harrison Shatters Pasadena, the nerds and the Trainers reunite for one final incursion. While on the other side of a portal now tearing a world apart everyone Ash Ketchum knows and met comes together for a war which will decide the fate of all. Who will win lose and survive. "Will you follow me, One Last Time."
Crossover - Pokémon & Big Bang Theory - Rated: T - English - Sci-Fi - Chapters: 6 - Words: 5,036 - Reviews: 4 - Favs: 4 - Follows: 4 - Updated: 7/19 - Published: 2/8/2015 - Ash K./Satoshi, Iris, Sheldon C., Amy Farrah Fowler
Leonard and Tori
by Erik9393 reviews
This is a remake of my Big Bang Theory/Victorious crossover.
Crossover - Big Bang Theory & Victorious - Rated: T - English - Friendship/Romance - Chapters: 13 - Words: 9,374 - Reviews: 1 - Favs: 4 - Follows: 6 - Updated: 7/19 - Published: 9/10/2015 - Leonard H., Tori V.
On a Vacation with her parents, Sarada Uchia walks into a stone circle and wakes up far from her home. Flung across time and Reality and taken in as an assistant to a recently single physicist. Sarada struggles with the life she knew and the one she now calls home. While the great heroes from before reunite to bring back their next generation. (Cossover with Outlander Elements)
Crossover - Naruto & Big Bang Theory - Rated: T - English - Adventure/Fantasy - Chapters: 6 - Words: 5,432 - Favs: 1 - Follows: 5 - Updated: 7/3 - Published: 9/20/2015
Judge, Jury, and Anyone Else Who Shows Up
by Skater3 reviews
It is the right and responsibility of every citizen, even genii.
Crossover - Big Bang Theory & Criminal Minds - Rated: K - English - Humor - Chapters: 1 - Words: 2,334 - Reviews: 1 - Favs: 3 - Follows: 2 - Published: 6/29 - Sheldon C. - Complete
by mariteri reviews
Darcy Lewis, college student and cousin of one Sheldon Cooper, receives a phone call that has her rushing to his aid. Rated T for language.
Crossover - Big Bang Theory & Avengers - Rated: T - English - Hurt/Comfort/Family - Chapters: 1 - Words: 2,431 - Reviews: 9 - Favs: 34 - Follows: 12 - Published: 6/23 - Sheldon C., Iron Man/Tony S., Darcy L. - Complete
A bloody nuisance
by Marjorie Nescio reviews
Doctor Sheldon Lee Cooper broke into Bill Compton's restricted database. Both men are brought before the Magister and Penny and her nerds show up at the scene. The Magister orders Bill to turn the fivesome. He is a cruel man indeed.
Crossover - Big Bang Theory & True Blood - Rated: T - English - Chapters: 9 - Words: 26,754 - Reviews: 28 - Favs: 8 - Follows: 14 - Updated: 6/19 - Published: 8/6/2014 - Sheldon C., Penny, Bill C.
Orange is the New Unified Field Theory
by theclownsarethere reviews
After getting out of prison Alex and Piper take shelter from Kubra in Pasadena. They happen to live a floor above Penny's apartment. There our lesbian couple joins in this new sitcom to add some humor to everything. -I love physics and both shows so I'll bring the best I can to it all. Please Review!
Crossover - Big Bang Theory & Orange Is the New Black - Rated: T - English - Humor/Drama - Chapters: 2 - Words: 3,207 - Reviews: 5 - Favs: 7 - Follows: 8 - Updated: 6/14 - Published: 5/22
Back to School
What if Penny wants to go back to school again and the one they choose is the famous community college which is Greendale lots humor and fluff with my fave pairing which is Shenny and AbedXAnnie Rated T at first but it will go to M as love progresses
Crossover - Big Bang Theory & Community - Rated: T - English - Humor/Romance - Chapters: 2 - Words: 1,862 - Favs: 1 - Follows: 1 - Updated: 6/10 - Published: 6/4
Big Bang Theory Vs Mighty Med
by Super Skylar Storm reviews
When worlds collide, chaos ensues. Characters from the Big Bang Theory and Mighty Med get together and wreck havoc on other worlds, including Lab Rats, Kickin-It, and Liv and Maddie
Crossover - Big Bang Theory & Mighty Med - Rated: T - English - Humor/Romance - Chapters: 1 - Words: 1,637 - Reviews: 1 - Follows: 1 - Published: 4/19 - Leonard H., Penny, Oliver, Skylar S.
The Big Bang Addams
by QueenTasha7 reviews
One night, the gang receives a call to teach two strange children physics! They are being paid wonderfully! Could this trip change their lives forever? The Addamsons hire some scientist to teach their children physics! Will they learn more than just physics? Lets find out! (This story is the 1964 Addams family tv series, not the cartoon. They didn't have it under TV shows.)
Crossover - Big Bang Theory & Addams Family - Rated: K+ - English - Humor - Chapters: 1 - Words: 1,013 - Reviews: 1 - Follows: 2 - Published: 4/10
by MeggysMegalovania reviews
Crossover - Big Bang Theory & Undertale - Rated: T - English - Humor/Romance - Chapters: 1 - Words: 6 - Reviews: 2 - Favs: 1 - Published: 3/19 - [OC, Penny] [OC, Mettaton Ex]
It all started with a titan
by tsubasaiscool reviews
Sheldon invents a time machine and they travel 2000 years into the future and they find themselves in the world of attack on titan.
Crossover - Big Bang Theory & Attack on Titan/進撃の巨人 - Rated: T - English - Adventure - Chapters: 3 - Words: 702 - Reviews: 4 - Favs: 2 - Follows: 8 - Updated: 3/12 - Published: 8/23/2015
The Carter Penny Transference
Imagine that you are Major Samantha Carter of Stargate Command, and you wake up one day and find that you are Penny, a waitress at the Cheesecake Factory in Pasadena. Sam Carter didn't have to imagine. It happened to her. And things got stranger still when Colonel Jack O'Neill switched minds with Sheldon Cooper.
Crossover - Stargate: SG-1 & Big Bang Theory - Rated: K - English - Chapters: 1 - Words: 4,202 - Follows: 1 - Published: 2/29 - Complete
When worlds collide324 | Page 1 2 3 4 11 .. Last Next »
by son-goku5 reviews
My attempt at a crossover of these two universes. I know, the title sucks. Strictly a one-shot. Read and Review please :)
Crossover - Big Bang Theory & Castle - Rated: T - English - Drama/Humor - Chapters: 1 - Words: 7,244 - Reviews: 6 - Favs: 4 - Follows: 4 - Published: 2/27 - Complete