One interesting scenario could be that Arthur plans an elaborate proposal in a secret, enchanted garden. He decorates it with magical lights and rare flowers. Another could be that he proposes during a grand feast, in front of all their friends and allies, making it a very public and joyous occasion. Or perhaps he takes Merlin on a quest, and at the end of it, when they've achieved something great together, he pops the question.
In the fanfiction, their relationship may develop gradually over a series of events. At first, they might have a bit of a rocky start, with Arthur being a bit oblivious to Merlin's true worth. But as they face challenges like political intrigue in the court, battles against dark magic, and helping the common people, they start to understand each other on a much deeper level. Merlin's selfless acts of using his magic for Arthur and the kingdom, and Arthur's growing respect for Merlin's abilities and character, all contribute to a relationship that blossoms into love. And this love is what leads Arthur to consider proposing to Merlin.
In another scenario, Batman takes Catwoman to their favorite rooftop in Gotham where they often meet. He has set up a beautiful, simple dinner with candles. After a heartfelt conversation about their journey together, from being enemies to lovers, he pulls out a ring with a diamond that has a unique shape, perhaps resembling the bat - symbol, and asks her to marry him.
One common scenario is when they are out on a quest. Arthur always puts Merlin's safety first, even if it means putting himself at risk. For instance, in a dangerous forest filled with magical creatures, Arthur would stand in front of Merlin to face any threats.
One interesting Merlin and Arthur fanfiction could be where Merlin reveals his magic to Arthur in a very unexpected and comical way. For example, during a royal banquet, when a knight accidentally drops a sword that's about to impale Arthur, Merlin freezes time and casually walks over to pick up the sword, then unfreezes time and acts like nothing happened. Arthur is left completely bewildered until Merlin finally confesses his powers.
Well, in some fanfictions, the magic reveal happens during a magical attack on Camelot. Merlin is trying to protect the castle and its people. He uses his magic to counter the dark spells, and Arthur, who is fighting bravely on the front lines, looks back to see Merlin with a halo of magic around him, defying the dark forces. This kind of reveal not only shows Merlin's power but also his loyalty to Camelot and Arthur.
One interesting plotline could be Merlin using his magic in modern times to secretly protect Arthur, who is a powerful businessman or politician. For example, he might use magic to prevent assassination attempts on Arthur.
One interesting 'arthur forgets merlin fanfiction' could be where Merlin has to use his magic in new and secretive ways to re - acquaint Arthur with their friendship. Maybe he creates small magical incidents that jog Arthur's memory in a subconscious way.
There might be a fanfiction where Arthur and Guinevere face a political crisis in Camelot. Merlin, with his unique insights, helps them navigate through it. He might use his magic subtly to influence the nobles in favor of the king and queen's decisions. For example, he could make a symbol appear during a council meeting that sways the nobles to support Arthur and Guinevere's new policy for trade with a neighboring kingdom.
There might be a fanfiction where Merlin uses his magic to create a special bond between Arthur and Gwen. This bond allows them to communicate telepathically, which helps them in battles and diplomatic situations. As they grow closer through this unique connection, they also face challenges from those who fear the unknown magic at work.
One interesting story could be where Merlin uses his magic in subtle ways to tease Arthur during their adventures. For example, he might make Arthur's sword just out of reach for a moment, only to have it magically appear in his hand seconds later, leaving Arthur both frustrated and amused at Merlin's antics.