How would Tony Stark react to having a secret daughter in a fanfiction?

He would probably be overprotective at first. Tony has been through a lot, and the idea of his daughter having mutant powers, which could make her a target, would be scary for him. He might try to keep her locked away in the Stark Tower, but that would likely lead to her rebelling.

He'd be frantic. Tony loves his daughter deeply, so he'd immediately start searching for her. He'd use all his resources, his technology, and his connections to find her.

Tony would probably be extremely hurt. He trusted his team, and betrayal would cut deep. He might initially be in denial, not wanting to believe that his friends could turn on him.

The Avengers would be in a state of panic and fury. Captain America would likely lead the charge to find Tony. He'd use his military strategy skills to plan a rescue mission. Thor might use his godly powers to track down any signs of Tony's whereabouts. Black Widow and Hawkeye would be on the lookout for any Hydra agents or informants. Hulk could be a wildcard. He might be uncontrollably angry and ready to smash anything in his path to get to Tony.

Tony would also likely expose her to the world of science and engineering from a young age. He might take her to his lab and let her play with non - dangerous parts while he works. This would help her develop an interest in those fields.

Loki might interact with her in a rather mischievous way at first. He could play little tricks on her just to see her reaction, but also be secretly impressed by her intelligence, which she got from her father. For example, he might magically move her tools while she's working on a project, and then be amused when she quickly figures out how to get them back using her own smarts.

He would be extremely worried. Tony Stark, despite his tough exterior, loves his daughter deeply. He'd probably start by using all his resources to find her. He has access to advanced technology, so he'd likely use his Stark Industries gadgets to track her down.

Natasha Romanoff would be disappointed. She values the unity among the Avengers and sees Tony and Steve as important pillars of that unity. She might try to mediate at first, but if the divorce is inevitable, she'd be sad to see the team's dynamic change so drastically.

She'd probably have a special bond with some of the original Avengers. For example, Steve Rogers might see her as a reminder of Tony and take her under his wing. He could teach her about honor and self - sacrifice. On the other hand, Thor might be like an over - protective uncle, always ready to use his hammer to protect her. And Natasha could train her in combat and espionage skills.

One possible plot is that she inherits some of Tony's genius. She could start building her own high - tech gadgets in secret. But there are villains who learn about her existence and try to use her to get to Tony's technology. So, she has to fight them off while also trying to understand her father who she never really knew.