Hunnigan could be a great addition. She could provide Leon with information and support from the outside, and her presence could add some tension as she might be suspicious of Ada's motives. Another good character is Wesker. His past connection to Ada could create more drama and conflict in the story. He could be a shadowy figure trying to manipulate the situation between Leon and Ada.
One common theme is trust. Since they often find themselves in precarious situations, the question of whether they can trust each other fully is a big part. For example, in many fanfics, Leon has to decide if he can trust Ada's motives.
A Leon and Ada married fanfiction can be really interesting. It allows fans to explore a different side of their relationship. Maybe it could be set in a post - apocalyptic world where they've finally decided to settle down. They might face new challenges together, like building a community or dealing with old enemies who don't like their new - found peace.
Well, 'The Lost Chapters of Leon and Ada' is a fanfiction that fills in the gaps of their story that the official games might have left out. It gives more backstory to their relationship and their individual struggles. Then there's 'Ada's Allure for Leon'. This fanfiction really plays up the attraction between them, showing how it affects their decisions. Also, 'Leon and Ada in a Parallel World' takes them to a different dimension where they have to face new challenges and reevaluate their relationship.
One common theme is the struggle between love and duty. Leon and Ada are often on different sides in the official stories, so fanfics explore how their feelings for each other play out against their respective missions. For example, in many fanfics, Ada has to make a choice between helping Leon and fulfilling her own tasks.
Love in the face of danger is also a prevalent theme. Their jobs put them in constant peril, but that doesn't stop the development of their relationship. Fanfics often show how they find love and connection despite all the chaos and threats around them. It's a contrast that makes for very engaging reading.
One possible plot could be them having a child. This would add a whole new dimension to their relationship as they'd have to protect their family. Another could be them going on a honeymoon that turns into a mission to stop a new bio - weapon threat.
Well, there are several interesting Ada and Leon fanfictions. For example, 'The Encounter in the Shadows' is a fanfic that explores their first meeting from a different perspective. It shows how their initial distrust slowly turns into a begrudging respect. 'Ada and Leon: A New Alliance' is also good. It's set in a world where they have to team up against a new, powerful enemy and in the process, their relationship evolves in unexpected ways. Then there's 'The Lost Chapters of Ada and Leon' which fills in the gaps of their story that the official games might have left out.
There's also 'Ada and Leon: Shadows of Raccoon City'. This fanfic takes place after the events in Raccoon City. It shows how their paths cross again and how they deal with the lingering traumas from that time while still being drawn to each other. It's a really engaging read as it adds new layers to their relationship.