Another idea for a Megatron x Optimus Prime fanfic is that they are stranded on a desolate planet. They have to work together to survive. With no other Autobots or Decepticons around, they are forced to put aside their differences. They learn about each other's cultures and values, and slowly a deep connection forms between them, one that challenges their long - held views about each other.
A great angle for a Megatron x Optimus Prime fanfic could be a body - swap situation. They are forced to inhabit each other's bodies due to some alien technology gone wrong. This leads to them having to understand each other's perspectives on a whole new level. They start to see the reasons behind their actions in the past and develop a new - found respect for one another.
The fanfic could focus on a time - travel aspect. Megatron and Optimus Prime are sent back to a time before the war. They see the events that led to their conflict and try to change them. Along the way, they rely on each other's strengths. Megatron's cunning and Optimus Prime's leadership combine in unexpected ways, and they form a bond that was not possible in their original timeline.
In a fanfic about Optimus Prime x Megatron, their relationship could be explored in a more philosophical way. For example, they might debate the nature of good and evil, power and responsibility. Optimus believes in protecting all life, while Megatron has his own ideas about power and how it should be used. This kind of fanfic could show how their different viewpoints could either bring them closer together or drive them further apart.
The plot could be about a power struggle. Megatron wants total control over Cybertron, but Optimus Prime stands in his way. However, instead of just fighting, there are political intrigues involved. There could be other characters influencing their decisions. Maybe some Autobots who think Optimus is being too soft on Megatron, and some Decepticons who think Megatron is being too cautious.
In a Megatron x Optimus Prime fanfic, the story could also be about a power struggle within themselves. Megatron is tempted by an ancient power source that could give him ultimate control. Optimus Prime tries to stop him not as an enemy but as a friend who is worried about Megatron's well - being. Their interactions are filled with emotional turmoil as they try to balance their friendship with their duties.
Fanfiction about them can explore different universes and scenarios. For example, what if they were raised together? How would their relationship be different? It gives fans a chance to play with the established lore and create new and exciting stories that the official Transformers storylines may not explore. It also allows for deeper exploration of their motives and personalities.
You can try looking on some fanfiction websites like Archive of Our Own (AO3). It has a large collection of Transformers fanfictions, and there might be some related to Optimus Prime and Megatron in the MPreg genre.
It could be developed by exploring their past. Maybe there was an event in their youth that they both remember differently. As they start to talk about it in the fanfic, they begin to see each other in a new light. For instance, they might have once been friends or at least comrades in a fight against a common enemy before their ideologies split them apart. This exploration of the past can build a more complex relationship between them.
It can also be appealing from a creative writing perspective. Writers can play with the personalities of the characters in this new and strange scenario. For example, how would Optimus Prime react to Megatron being in such a state? And vice versa. It gives a whole new layer to their complex relationship.
One possible fanfiction could be about Optimus Prime and Megatron having to team up against a greater threat. Maybe an ancient evil from Cybertron's past resurfaces that is so powerful that their usual enmity has to be put aside. They start off distrusting each other but as they face battles together, they gradually come to respect the other's fighting skills.
One common theme is the exploration of their rivalry - turned - friendship or even more. Their long - standing enmity in the original lore is often a starting point, and fanfic authors like to twist it into a relationship that has more depth.
Perhaps a fanfiction where a powerful artifact is discovered that has the potential to change the balance of power on Cybertron. Megatron wants it for his own gain, and Optimus Prime wants to protect it. But when they both touch it simultaneously, they are transported to an alternate dimension where they must work together to find a way back, all while learning more about each other than they ever thought possible.