Rook's character could develop by becoming more in touch with his emotions. Usually, he is very by - the - book as a Plumber. But being around Rayona, he might start to take more risks and think outside the box. For Rayona, she could become more confident in her abilities. Maybe she starts off a bit unsure, but as she goes on adventures with Rook, she realizes her full potential.
A plotline could be that Rook and Rayona are assigned to protect a special VIP from the galaxy. Along the way, they face various challenges like attacks from bounty hunters. Rayona might use her unique skills, and Rook his Plumber training. They start off not getting along well but as the story progresses, they come to respect and rely on each other. Another idea is that they discover a hidden civilization that is in danger of being destroyed by a natural disaster. They then have to figure out a way to save this civilization while also dealing with their own personal issues.
By having them face a common enemy. When they fight side by side against a powerful foe, they can learn to trust each other more and understand each other's fighting styles better.
One possible plot could be that Rook and Ben go on an adventure to a new planet in the Ben 10 Omniverse. They encounter a strange alien species that has a unique power. Ben tries to use his Omnitrix to transform into an appropriate alien to deal with the situation, but there are some glitches. Rook, with his Plumber skills, helps Ben figure out what's wrong and together they overcome the challenges and make new friends among the aliens.
Another theme is adventure. Since they are from a universe full of strange planets and creatures, many fanfics take them on exciting adventures across the galaxy. They might be searching for a powerful artifact or trying to stop an evil force from taking over the universe. It's all about the journey and the discovery along the way.
An interesting aspect could be exploring Rook's past more deeply. Maybe he has some secrets from his time before being a Plumber that are related to the Ben 10 Omniverse. Ben could help him uncover these secrets while they are on a mission. For example, they could be investigating an ancient alien artifact, and as they dig deeper, Rook's past starts to unfold.
Friendship is a common theme. It could show how their friendship develops over different adventures in the Ben 10 universe.
There are several great writers in the Ben 10 and Rook Shar fanfic community. One well - known writer is [Writer's Name]. Their stories are known for their detailed characterizations and exciting plotlines. Another good one is [Another Writer's Name]. They have a unique style of writing that really brings out the relationship between Ben and Rook. But it's really subjective as different people look for different things in a fanfic.
There's also 'Ben and Rook: The Bond'. This fanfic really delves into the relationship between Ben and Rook, exploring how their friendship grows over time. It has some really well - written dialogue that makes the characters come alive. For example, there are scenes where they have to rely on each other in tough situations, which shows the depth of their bond.
The main characters are Rook and Ben's babies. Rook, who might be from a different background or with different abilities, is the one who is going to interact with the babies. The babies, on the other hand, could have inherited some of Ben's traits. Their interactions will form the core of the story. For instance, if Ben has superpowers and the babies show some signs of those powers, Rook will have to deal with that while getting to know them.
Perhaps a fanfic where Ben and Rook accidentally swap abilities. Ben has to deal with Rook's weaponry and combat skills, while Rook tries to control the Omnitrix. It would be full of comical moments as they struggle to adapt, but also a chance for them to learn more about each other's strengths and weaknesses.