In the fanfiction, Barry Allen joining the Glee reunion could lead to some really interesting crossovers. For example, he could use his knowledge of science (from being a forensic scientist) to help the Glee club with their acoustics or lighting. His friendship with the Glee characters would grow as they teach him about music and he teaches them about heroism. Maybe they'd even create a song together about the importance of using your unique abilities to make the world a better place.
If Barry Allen joined the Glee reunion in fanfiction, he might bring a new perspective to the group. His experience of saving the world and facing challenges could inspire the Glee characters to be more confident and take risks in their performances. Also, he could use his superpowers to create some amazing visual effects during their shows, like running around the stage so fast that he creates a cool blur effect.
A possible plot could be that Barry Allen is running through time and space and accidentally disrupts the Glee reunion. He then feels responsible and decides to help make it the best reunion ever. He could use his super speed to bring in some of the old Glee members who couldn't make it initially. And in the process, the Glee characters teach him some valuable lessons about the power of music and friendship.
Well, in fanfiction where Barry Allen turns into Black Flash, it's a major transformation. Firstly, his powers could become more unpredictable and dangerous. He might not be able to control his speed as he used to. Secondly, his friends like Iris, Cisco, and Caitlin would be horrified. They would try to find a way to bring back the old Barry. Emotionally, Barry would be in turmoil as the Black Flash entity takes over. His speedster friends from other cities like Wally and Jay might also be in danger as the Black Flash is known to target speedsters. It would be a very different and much darker story for the Flash universe.
Well, maybe the characters from both shows would come together for a big musical event. They could perform some amazing mash - up songs. For example, Supergirl's heroic characters could join the Glee club on stage and sing some inspiring anthems together.
Well, there could be an epic battle. Maybe the Justice League is facing a powerful enemy and Barry Allen, with his super - speed, arrives just in time to turn the tide. He could use his speed to disrupt the enemy's attacks and create opportunities for the other members of the Justice League to strike.
Perhaps they start off as rivals at first. Bruce might be a bit suspicious of Barry's powers and his more light - hearted approach. But as they get to know each other better, they realize they can learn a great deal from one another. Barry could teach Bruce to loosen up a bit, while Bruce could show Barry how to be more strategic in his superhero work.
Well, in this fanfiction scenario, their pregnancy could bring out new powers or abilities. Maybe the baby has some sort of meta - gene that starts to affect Caitlin while she's pregnant, giving her new ice - related powers. Barry might also find that his connection to the Speed Force is altered because of the new life growing inside Caitlin. And as they prepare for the baby, they could start to train a new generation of heroes within the Flash team to help protect their family in the future.
One possibility is that it could bring a lot of drama. Her pregnancy might cause tension among the former Glee club members. Some might be excited for her, while others could be worried about how it will affect their reunion. Maybe there will be conflicts over who will support her during this time.
One possibility is that their relationship could face challenges from their respective superhero duties. They might have to keep their relationship a secret from their friends and allies in order to protect them. Another option is that their kiss could be a one - time thing, and they decide to remain just friends. Or perhaps it could lead to a full - blown romance, with them teaming up more often both in and out of their superhero personas.
Barry would probably be in awe of Batman at first. He's heard of the Dark Knight's reputation. Batman, on the other hand, would be cautious of Barry's powers. But as they start working together, Barry's friendly nature might start to break through Batman's tough exterior. For example, Barry might crack a joke during a tense situation, which could either annoy Batman or make him see a different perspective.
In a fanfic about Barry Allen's death, the villains could take advantage of the situation. Zoom might return, seeing this as an opportunity to finally take over Central City. The team at STAR Labs would have to work harder than ever to keep the city safe. They would also be mourning the loss of their friend, which could affect their performance. Barry's legacy would be a big part of the story, as everyone would be remembering his heroics and trying to live up to his example.