In many of these fanfictions, their relationship becomes stronger. Arthur knowing about Merlin's magic means they can be more open with each other. For example, in some stories, they start to rely on Merlin's magic more in battles, and this deepens their trust.
Some fanfictions show Arthur becoming more dependent on Merlin's magic in certain situations. For instance, when facing a powerful enemy that can't be defeated by normal means. This changes the dynamic from just a king - servant relationship to more of a partnership. Merlin, on the other hand, might feel more confident in using his magic openly around Arthur, which also alters their interactions. They could have more equal conversations and decision - making processes.
Merlin can impact their relationship positively. He might use his magic to create opportunities for them to be alone, like creating a private garden for their dates.
In most cases, it initially causes shock and confusion for Arthur. He has grown up believing magic is evil, so seeing Merlin, his closest friend, using it is a huge blow. However, it can also lead to a deeper understanding between them. Arthur realizes that Merlin has been using his magic all this time to protect him and Camelot. This can strengthen their bond as Arthur now sees Merlin in a new light, not just as a servant but as a powerful ally.
One great fanfiction in this category is 'The Secret Revealed'. It beautifully explores Arthur's reaction to Merlin's magic in a very detailed way. Another is 'Magic and Trust' which delves deep into how their relationship evolves after Arthur discovers Merlin's secret. And 'A New Beginning' is also good, it shows a different take on how Camelot changes with this new knowledge.
In many fanfictions, Merlin's magic acts as a catalyst. For example, if Freya is in danger, Merlin uses his magic to protect her. This shows Arthur that there is more to the world of magic than he thought. It can make Arthur more accepting of Freya, who is often associated with magic. Sometimes, Merlin's magic also reveals secrets about Freya that Arthur needs to know, which either brings them closer or causes some initial friction as Arthur has to adjust to new revelations.
Merlin's magic can both strengthen and complicate their relationship. On one hand, his magic allows him to protect Arthur in ways others can't. For example, he can use magic to heal Arthur's wounds secretly. But on the other hand, Merlin has to hide his magic from Arthur in many fanfictions because of the laws against magic in Camelot. This secrecy can create tension, like when Arthur suspects something is different about Merlin but can't quite put his finger on it.
It would likely become very strained. Arthur has been brought up to uphold his father's anti - magic stance. So, when Uther discovers Merlin's magic, Arthur might initially feel betrayed and distance himself from Merlin.
The kiss in these fanfictions can be a symbol of defiance. Against the norms of Camelot, which may not accept their relationship. It forces them to face not only their feelings but also how the world around them will react. Some fanfictions explore this by showing how they have to hide their relationship after the kiss, adding a layer of secrecy and tension.
In fanfiction, their relationship often develops in more nuanced ways. For example, some stories focus on the trust that slowly builds between them. Merlin's magic might be revealed earlier, leading to a period of adjustment for Arthur, which in turn deepens their connection.
It completely changes the dynamic. Instead of just a friendship, it adds a layer of romantic love. Their interactions now have a different undertone. For example, a simple glance between them in the original story might just be friendly, but in the fanfiction, it could be filled with passion and love.