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.
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 great storyline could be a story where Megatron and Optimus Prime are forced to team up against a greater threat from another universe. They have to put aside their differences and learn to trust each other. Another could be a pre - war story, exploring their relationship before they became enemies, perhaps they were once friends or comrades. A third could be a story where they are both stranded on a strange planet and have to rely on each other's unique abilities to survive and find a way back home.
To write a great Transformers Megatron X Optimus Prime fanfiction, start by thinking about the conflict. It's not just about their physical battles but also their ideological differences. Maybe in your story, they find a common ground in a new threat that challenges both of their beliefs. Next, describe their actions vividly. When they transform, when they fight, make the reader feel like they are there. Another important aspect is the development of their relationship. It could start as pure hatred but gradually turn into respect or even friendship. You can also add side characters to enhance the story, like other Autobots or Decepticons reacting to their strange new alliance or situation.
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.
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.
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.
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.
I'm not an expert in anime or movies, and I don't have enough information to answer this question. However, according to what I know about the Transformers plot, the scene of the fight between Prime and Megatron on the moon is not a plot of an anime or movie, but a plot of a Transformers comic or novel. In the Transformers comics and novels, Prime and Megatron often fought on different planets, some of which even involved the moon.