Often, the children of the original Big Time Rush members are popular characters. For example, if Kendall had a son in the fanfiction, he might inherit his father's charm and singing talent and be a central character.
One interesting story could be about the next generation forming their own band and facing challenges different from the original Big Time Rush. They might struggle with new music trends and trying to live up to their parents' legacies.
In the fanfiction, Carlos could be asleep and his sleep could be a symbol of his inner peace. He's been through a lot with Big Time Rush, all the tours, the recording sessions. Now he's asleep and it could be a moment for him to rejuvenate. His friends might be sitting around him, reminiscing about all the fun times they've had together. And when he wakes up, he has a newfound energy to take on new challenges with the group.
Well, it could include characters like Cassie Lang. Since she has shown an interest in following in her father's (Scott Lang) footsteps. She might be a key member of the next - generation Avengers in a time travel fanfiction. Another could be Kate Bishop. She has already proven herself as a skilled archer and fighter, and her abilities would be very useful in a time - travel adventure. And there's also Riri Williams, the young genius who could build amazing technology to help with the time travel and any problems they encounter in different time periods.
One popular storyline is the boys getting into a huge misunderstanding but their friendship prevails in the end. For example, there could be a situation where they are wrongly accused of something and they have to work together to clear their names, which strengthens their bond.
There might be a fanfiction where a fan wins a contest to style one of the Big Time Rush member's hair. The fan is super nervous but has this amazing vision for a haircut. It could be a story full of anticipation as the fan tries to execute their idea. There could be some obstacles like not having the right tools at first, but in the end, they create a masterpiece haircut that gets a lot of attention from the media and other fans.
Well, in Big Time Rush fanfiction, James often takes on different roles. Sometimes he's the hero saving the day for the band. He might be involved in wild adventures that are not shown in the original show, like a secret mission to find a rare music instrument that could boost their career to new heights.
In a Big Time Rush overprotective brother fanfiction, the brother could be overprotective because of a past incident. Maybe his sibling got hurt during a small concert performance once. So, he hovers around, making sure everything from the stage setup to the security around his sibling is perfect. This could create some tension within the group as the others might think he's being too much, but in the end, they come to understand his motives.
A drastic haircut in fanfiction can make a character seem more confident. For example, if a usually shy member of Big Time Rush gets a bold new haircut, it might give them the boost they need to be more outgoing on stage. They start to carry themselves differently and interact with fans more freely.
You should also consider their goals and dreams as part of the friendship. Maybe they all have different dreams but they support each other to achieve them. For example, one wants to be a great songwriter and the others help him by giving feedback and motivation. Start with a basic outline and then expand on it as you write.