A mermaid in an Agents of Shield fanfic might also be a victim of some sort of Hydra experiment. They could have been trying to combine the unique physiology of a mermaid with their own technology or powers. This mermaid could then be on the run from Hydra and seek refuge with the Agents of Shield. The agents would then have to protect her while also trying to figure out how to use her abilities to their advantage.
Well, a simple plot could be that a mermaid is accidentally caught in a portal created by some alien tech that the Agents of Shield are studying. She then finds herself in a world she doesn't understand, and the agents have to figure out how to get her back home. At the same time, they discover that her presence is causing some strange energy fluctuations that could be dangerous.
Well, a really interesting plot might involve the Agents of Shield trying to recruit the TMNT for a special mission. Since the turtles have unique skills and knowledge of the sewers and the underbelly of New York, they could be valuable assets. Or perhaps a Kraang invasion occurs in the Agents of Shield universe, and the Agents have to work with the turtles to stop the alien menace. The turtles could teach the Agents some of their ninja fighting techniques while the Agents share their high - tech weaponry and strategies.
One idea could be that Supergirl's powers are misinterpreted by Shield as a new threat. So they send some of their agents to investigate. The agents then realize she's actually a hero and they team up to fight a common enemy like a powerful alien race that's planning to invade both their worlds.
When writing an Agents of Shield crossover fanfiction, think about how the different technologies and magic systems (if applicable) will interact. If you're crossing over with a fantasy world, how will the Shield agents deal with magic? And how will the magical beings react to the high - tech gadgets? Also, focus on the character development. Let the characters from both universes grow and change as a result of their interactions. You can start with a small event that escalates into a big adventure for all of them.
Lemon fanfics typically contain more adult or mature content, while regular Agents of Shield fanfics focus more on general storylines like adventures, friendships, and the overall plot of the show. Lemon fanfics might explore the romantic and sexual relationships of the characters in a more explicit way.
First, you need to understand the characters well. For Supergirl, know her powers, her moral code, and her relationships. For Agents of Shield characters, like Coulson, Daisy, etc., study their personalities and abilities. Then, create a believable scenario for their meeting. It could be something like a shared threat or an accident that brings them together.
One great Agents of Shield crossover fanfiction is the one where they cross over with the X - Men universe. It's really interesting to see how the characters from Agents of Shield interact with mutants. The story often has some great action scenes and character development as they face new threats together.
Perhaps there could be a time - travel related plot. A device is accidentally activated in a S.H.I.E.L.D. lab that sends some Agents and Avengers back in time. They end up in a crucial moment in history, like during World War II. There, they meet younger versions of some of the Avengers. They have to work together without changing the timeline too much while also finding a way back to their own time.
In a fanfic, the Agents of Shield could potentially discover Thanos' plan early. They have a lot of intelligence - gathering resources. Maybe they find out about the Infinity Stones before the Avengers do. Their unique skills in espionage and combat could be used to either steal the Stones first or set up defenses against Thanos.
I'm not sure exactly what you're asking about this specific fanfic. It could be about a particular plotline, a relationship development between Skye and May in that episode. Maybe it's a fanfic that focuses on their teamwork or a conflict they face together.