The story could start with a strange accident that somehow links Peter Parker and Mrs Marvel on a genetic level. This unexpected connection leads to Mrs Marvel becoming pregnant. They then have to deal with the shock and the reactions of their friends and the superhero community. Some might be supportive, while others could be worried about the implications of such a unique situation for the future of the superhero world.
One possible storyline could be that they meet during a superhero team - up. As they work together to fight a common enemy, they develop feelings for each other. Eventually, they find out Mrs Marvel is pregnant. This could lead to them having to balance their superhero duties with the impending arrival of their baby. For example, Peter Parker might worry about protecting his family from his enemies while Mrs Marvel could be concerned about how her powers might affect the pregnancy.
The relationship would change in many ways. Emotionally, they would be more intertwined. They would have to communicate more about their fears and hopes for the future. Physically, Peter Parker might be more cautious around Mrs Marvel, especially as her pregnancy progresses. Socially, they would face different reactions from their friends and colleagues. Some might be excited for them, while others might be skeptical. This would either bring them closer together as they face the outside world as a unit or cause some tension if they have different ways of dealing with the opinions of others.
There could be many interesting plotlines in such a fanfiction. Maybe it could start with a strange accident that leads to Ms Marvel becoming pregnant with Peter Parker's child. For example, some sort of magical or scientific experiment gone wrong. Their relationship would then be tested as they deal with the challenges of an unexpected pregnancy. They would have to face the reactions of their friends and families, like Peter's Aunt May and Ms Marvel's own family. Also, they would need to figure out how to balance their superhero duties with the impending parenthood.
The fanfiction could have a plot where Peter and Ivy get married in a very unique ceremony, perhaps in a hidden garden filled with both regular and mutant plants. After marriage, they face challenges from the outside world. The public might not understand their union, and there could be villains who try to use their relationship against them. But they stand strong together. Peter uses his Spider - sense to protect Ivy, and she uses her plant powers to create a safe haven for them. They also travel together, with Peter swinging through the city and Ivy using her vines to keep up, exploring new places and having adventures while also trying to make the world a better place.
In a fanfiction, it could start with Circe being intrigued by Peter Parker's unique powers and his sense of responsibility. She decides to observe him closely and during one of his battles, she steps in to help. Their relationship grows from there. Then, due to a mix of her magic and some strange reaction to Peter's radioactive spider - bite - related biology, she becomes pregnant. The rest of the story could be about how they adapt to the idea of becoming parents in a world full of superheroes and magic.
In a situation like this, their worlds might collide because of their different support systems. Peter has his friends like Ned and MJ, while Ms Marvel has her own group of friends and family. The pregnancy would mean that these two groups would have to interact. It could lead to some interesting cultural clashes or just general misunderstandings as they all try to figure out how to support the couple. Also, their different powers and how they use them in combat could be affected by the pregnancy. Maybe they would have to develop new strategies together to keep themselves and the baby safe.
One possible plot could be that they are brought together to fight a powerful new enemy. During the battles and strategizing, they start to develop feelings for each other. Peter's quick thinking and Captain Marvel's raw power complement each other, and they realize they are stronger together not just as superheroes but also as a couple.
One possible storyline could be a mix of the two universes colliding. Maybe Peter Parker discovers Fem Thor's pregnancy during a battle where she's a bit off her game due to the pregnancy symptoms. He decides to protect her and they form an unlikely alliance. This could lead to a lot of humorous and action - packed scenes as Peter tries to keep up with a pregnant Asgardian warrior.
One possible plot could be that they accidentally got pregnant through some magical or scientific mishap. They then have to figure out how to deal with it while keeping it a secret from their superhero friends and enemies.
The plot could revolve around them falling in love first. They might start as friends or allies, and as they get to know each other better, romantic feelings develop. Then, the pregnancy could come as a surprise. They would need to figure out how to balance their superhero lives with the impending arrival of a baby. For instance, Peter would need to be more cautious when swinging around the city as Spider - Man, and Barbara might have to step back from some of her more dangerous Oracle - related activities.
One possible plot could be that they accidentally find themselves in a situation where Raven becomes pregnant. Peter, being the responsible type, tries to balance his superhero duties with being there for Raven. They might face challenges from both their worlds, with Peter's superhero friends being a bit skeptical and Raven's mutant comrades having their own opinions. It could be a story of them coming together against all odds to prepare for their new family member.