One idea could be that Captain America has to balance his superhero duties with taking care of his pregnant wife. He might worry about protecting her from his enemies who could target her. For example, he could start setting up extra security around their home and be more cautious about his public appearances to not draw unwanted attention.
Maybe in the fanfiction, his wife's pregnancy has some sort of special circumstances. It could be that the unborn child has some super - abilities that are starting to show even before birth. This causes both excitement and fear among them. Captain America then has to find ways to understand and manage these new developments while also preparing for fatherhood.
One possible plot could be that they meet in an alternate universe where timelines have merged. Captain Carter and Captain America initially have a bit of a misunderstanding as they come from different versions of heroics. But then they realize they share the same values of justice and freedom. They team up to fight a common enemy that is threatening both their worlds, like a powerful time - traveling villain who wants to rewrite history to suit his evil plans.
One idea could be a story where Captain America and Captain Marvel team up to face a new cosmic threat that's headed towards Earth. They have to combine their unique skills, with Captain America's strategic mind and combat experience on the ground, and Captain Marvel's incredible cosmic powers in space battles.
One possible plot could be that Naruto, being a big fan of Captain America, starts to incorporate Captain America's values into his ninja way. For example, he might be inspired by Cap's sense of justice and unwavering loyalty. He could start training his friends in Konoha to be more like a team in the way Cap leads the Avengers, emphasizing unity and self - sacrifice. Naruto might also create his own version of Captain America's shield using chakra, and use it in battles against powerful enemies.
One idea could be Captain America arriving on Themyscira and being initially met with suspicion by the Amazons. But as they learn of his values of justice and courage, they start to respect him. He could then train with the Amazons, sharing his combat techniques while also learning from their unique fighting styles.
Well, one possibility could be that they team up to fight a common enemy. Maybe a powerful villain has emerged that neither of them can take on alone. They start off not trusting each other fully, Wolverine being the lone wolf type and Captain America used to leading his own team. But as they face challenges together, they learn to respect each other's skills and eventually become great allies.
Another idea is that there's a villain who can manipulate time and space. He sends Captain America to the Naruto world during a crucial time in Naruto's story, like right before a big battle. Captain America's leadership and battle experience help Naruto and his friends come up with a better strategy. And in the process, they learn from each other's values and fighting styles.
One plot idea could be an OC who is a scientist during World War II and teams up with Captain America. They could work on some top - secret projects together. Another is an OC who is a foreign agent sent to assess Captain America's abilities and ends up becoming his ally. Maybe an OC from the future who travels back in time to help Captain America prevent a major catastrophe that wasn't in the original timeline.
One common theme is the exploration of how Captain America deals with the unexpected situation of pregnancy. It could be about his struggle to balance his superhero duties with his newfound role as a potential father.
One common theme is sacrifice. Captain America might have to sacrifice some of his superhero duties to take care of his pregnant partner. Another theme is protection. He will do everything to protect his partner and the unborn child from any threats. And there's also the theme of family values. It shows how important family is to him even in the middle of his superhero life.
Perhaps a plot where Scarlet Witch creates an alternate reality by accident. In this reality, Captain America is the only one who remembers the true world. He has to convince Scarlet Witch that this new reality is wrong and help her reverse it. Along the way, they encounter versions of their friends and foes that are different from what they know. This forces them to re - evaluate their relationships and what they truly stand for.