Redemption is another theme. Black Widow, with her complex past, might be on a path of redemption in some fanfictions, and Captain America could play a role in helping her through it. Or vice versa, Captain America dealing with his own modern - day struggles and Black Widow being there to support him in a new way.
One common theme is adventure. Writers often create new missions or scenarios for them to face together, building on their existing heroic personas. For example, they might be sent on a secret mission to a far - off land to stop a new super - villain.
One common theme is the idea of two broken souls finding solace in each other. Captain America is out of time and Black Widow has a dark past, and in fanfictions, they often heal each other's emotional wounds through their love.
One common theme is trust. Given their different backgrounds, they need to learn to trust each other. For example, Captain America coming from a more idealistic past and Black Widow from a more shadowy world. Their stories often explore how they build that trust over time.
One common theme is friendship. Given their different backgrounds and skills in the Avengers, they can form a strong bond based on mutual respect. Another theme is adventure. They often go on missions together in fanfiction, facing various threats.
Well, a frequent theme is the exploration of their different personalities. Captain America is more of the all - American hero with a strong sense of right and wrong, while Black Widow has a more complex and shadowy past. Their love can be about bridging that gap. Also, the theme of sacrifice often comes up. They might have to sacrifice their relationship for the greater good at some point in the fanfiction.
One common theme is loyalty. They are both loyal to their cause and to each other in the fanfictions, just like family members would be. They have each other's backs no matter what.
One common theme is the idea of two broken souls finding comfort in each other. They both have dark pasts, and fanfiction often explores how they can heal together. Another theme could be the contrast between Steve's idealism and Natasha's cynicism, and how they overcome that difference.
One common theme is the idea of two broken souls finding solace in each other. Steve has lost his past life and Natasha has a troubled past. Another theme is the contrast between their personalities. Steve is more of an idealist and Natasha is more of a realist, and how they balance each other out in a romantic relationship.
One common theme is the contrast between their personalities. Captain America's idealism and Black Widow's more cynical nature can create an interesting dynamic. Another is the idea of finding love in a world full of danger and chaos, which is very much the situation in the Marvel universe.
Yes, there are many. You can find them on popular fanfiction websites like Archive of Our Own. Some explore their relationship in alternate universes where they have more time to develop feelings for each other outside of the main Marvel storyline.
Another possibility is a fanfiction set in an alternate universe. In this universe, Captain America and Black Widow are not part of the Avengers. Instead, they are partners in a detective agency. They solve crimes that are related to super - powered individuals, using their own unique abilities and intelligence.