What could be the plot ideas in a 'Batman is friends with Tony Stark' fanfic?

Perhaps in the fanfic, Tony Stark is turned into a cat by one of his experiments gone wrong. He then has to navigate his life as a cat while still trying to be Iron Man. He might have to communicate with his friends in different ways and face challenges that come with his new feline form. It could be a really comical and interesting story.

Well, an interesting plot could be that Tony discovers he's pregnant in the middle of a big battle or some sort of crisis situation. He then has to figure out how to keep it a secret from the villains while also preparing for the baby. Also, there could be a plot where he uses his genius to create new tech to help with his pregnancy, like a special suit that can also monitor the baby's health.

One plot idea could be that Tony Stark somehow travels to the wizarding world. He could use his technological knowledge to improve the wizarding devices. For example, he might make brooms fly faster with some kind of engine modification.

Perhaps Stark visits Wakanda to study their technology further. The Wakandans are initially wary but soon realize his good intentions. As he shares his knowledge too, a mutual respect and something like 'love' (again, admiration) grows. They might team up to face a common threat using both Stark's Iron Man tech and Wakanda's vibranium - based weapons.

A fanfic could revolve around a technology exchange. Tony, being a genius in Earth - based technology, is intrigued by the advanced tech Carol has encountered in space. They work together to combine their knowledge, which leads to some amazing inventions that help save the world in an unexpected way. For example, they might create a new type of energy source that can power the entire planet while also being a weapon against their enemies.

One possible plot could be that Tony Stark discovers a way to travel to the wizarding world. He meets Harry Potter and they initially have a bit of a culture clash. But then, they realize they can learn a lot from each other. Tony helps Harry with some Muggle - like technology problems in Hogwarts, like improving the communication systems. And Harry shows Tony the wonders of magic, like how to use a Patronus to fight off Dementors that somehow end up in Stark Tower.

One possible reason could be jealousy. Maybe Tony's intelligence and wealth made some Avengers feel inferior, and over time, that festered into betrayal. For example, if Tony developed a new technology that could potentially overshadow their own abilities, they might feel threatened.

One possible plot could be that the BAMF is a powerful new villain who targets Tony Stark out of jealousy for his technology and fame. The BAMF might start by attacking Stark Industries, causing chaos and destruction. Then, they could directly confront Tony in his Iron Man suit, using some new and unexpected powers to hurt him both physically and mentally, perhaps by hacking into his suit's systems.

The plot could involve them working together on a new super - technology. For example, they might try to create a device that can control the Hulk's power more precisely, leading to all kinds of adventures and challenges along the way.

One idea could be a story where Tony discovers a hidden diary of Howard's that reveals secrets about his early inventions and the true motives behind some of his actions. This could lead to Tony having a new perspective on his father and his own work.