In this fanfic, the relationship between Scott, Alex, Gabriel and the OC as the fourth brother could be explored in depth. It might start with the OC being an outsider, not fully accepted by the others at first. But as time goes on, through shared experiences like defending their village from invaders, they come to realize his value and he becomes an integral part of their brotherly bond. Their individual personalities would also play a role in how they interact. For example, Scott's impulsiveness might sometimes clash with Alex's more cautious nature, while Gabriel tries to keep the peace, and the OC brings a fresh perspective to their group dynamics.
A simple plot could be that they are all part of a guild in a fantasy world. The guild is facing a rival guild that is causing trouble. Scott, Alex, Gabriel and the OC as the fourth brother have to work together to defend their guild's honor. They train hard, with Scott being the most enthusiastic about combat training, Alex focusing on the strategic aspects, Gabriel on physical strength improvement, and the OC using his unique skills (maybe some form of magic) to give them an edge.
There might be a fanfic where the relationships between them are explored. For example, the OC's older half - brother could have a conflict with Scott at first because they have different views on how to handle a certain situation. But as the story progresses, they learn to understand each other. Alex and Gabriel could be the mediators in this situation, trying to keep the peace between the two.
When writing, focus on the relationships between the characters. For instance, show how the OC's older half - brother interacts with Scott. Are they friends or rivals? You can also include some dialogue to make the story more engaging. For example, Gabriel could say something funny to break the ice when there is tension between the characters. Also, describe the settings vividly so that the readers can picture the story in their minds.
One possible fanfic could be about Scott and Alex's journey in the X - Men world. Maybe they discover new powers together. For example, Scott's optic blasts could combine with Alex's energy manipulation in a unique way during a battle against a powerful mutant enemy.
In the fanfic, their older brother might be a bit of a rebel. He could have left the X - Men for a while due to some ideological differences. But then, when Scott and Alex find themselves in a really tough situation, he comes back to help. He brings with him some new fighting techniques he learned during his time away, and together they form a stronger team.
It could include their training sessions at the X - Men school. They would learn from the experienced mutants like Professor X and Wolverine. Their powers would be refined, and they'd form bonds with other students.
Scott could be the leader - like figure among them, using his optic blasts to protect his brothers and the X - Men. Alex, with his powerful energy blasts, might be the more impulsive one who often rushes into danger. Their older brother could be the strategist, coming up with plans to outwit the enemies.
One common theme is brotherhood. Given their relation, many fanfics explore how their bond as brothers is strengthened or tested in different situations within the X - Men world.
In some fanfics, Big Brother Gabriel is given a backstory that makes him more relatable. For example, he might have had a difficult time growing up in the celestial realm, facing certain challenges that shaped his personality. This could lead to different interactions with characters like Aziraphale and Crowley. He might be more sympathetic towards their relationship, or he could be even more determined to stop it depending on how the author wants to spin the story.
His pride is also a characteristic that is sometimes emphasized. He believes in the superiority of Heaven and its ways, and this pride can lead to conflicts with other characters. He may look down on Aziraphale for his friendship with Crowley, seeing it as a betrayal of Heaven's values. However, in some fanfics, this pride can also be his downfall as he fails to see the changing tides in the eternal battle between good and evil.