Often, it's to make the story more engaging and give the characters more depth. Maybe there are external factors or internal struggles that constantly trigger their anger.
Often, the theme of trust is explored. Given their different personalities, building and maintaining trust can be a big part of the stories. Tony is more flamboyant and Bruce is more reserved, so how they come to trust each other completely is an interesting aspect. And of course, the theme of innovation, as they are both brilliant minds constantly coming up with new ideas.
A common theme is friendship. Since they are all part of the Avengers, many fanfictions explore how they form strong bonds despite their differences. For example, in some stories, Bucky's past trauma is healed through the support of Bruce and Tony.
Another fanfiction could focus on their friendship. For example, they could have a weekend getaway where they just relax and talk about non - work - related things. They might share stories from their past, like Tony's wild college days and Bruce's early research experiences. It would be a chance to explore their characters on a more personal level.
One great fanfiction could be 'Alliance of Titans'. In this story, Bruce Wayne and Tony Stark meet at a high - tech expo. They initially clash due to their different approaches but soon realize they can learn from each other. Their friendship blossoms as they face a common enemy who is stealing high - tech gadgets from both Wayne Enterprises and Stark Industries. Another one is 'The Billionaire Bond'. Here, they are brought together by a mysterious organization that wants to use their combined wealth and intelligence for their own evil purposes. Bruce and Tony must work together to outwit the bad guys and in the process, their friendship deepens.
One common theme is the power of their intellects combined. They are both brilliant minds, and fanfictions often explore how their ideas can create amazing things when they work together.
Friendship is also a big theme. Since they are all part of the Avengers universe, many fanfictions explore how their different personalities can form a strong bond. Tony's wit, Bruce's intelligence and Bucky's quiet strength combine in unique ways to create interesting friendship dynamics.
In some fanfiction, Tony Stark might be angry at the Avengers because of a perceived betrayal. For example, if they made a decision without consulting him that put him or the world in danger. He's a control freak in a way, so when things go awry without his input, he could get mad.
Well, obviously Tony Stark himself is the central character. Pepper Potts often shows up as she is close to Tony and can either calm him down or be on the receiving end of his anger in some cases. Rhodey is also common as his friend and military contact. He might try to reason with Tony when he's angry.
In fanfiction, they often start off as rivals. Tony Stark, with his flamboyant and open - about - his - identity style, clashes with Bruce Wayne's more secretive and brooding approach. But as the story progresses, they usually find common ground in their intelligence and drive to protect the world.
One great fanfiction idea could be that Bruce and Tony are working on a top - secret project together. They start off bickering as usual, but as they face various challenges, like a shortage of resources or a malfunction in their equipment, they start to rely on each other more. Tony provides the technical know - how and Bruce uses his scientific knowledge. Their bromance grows as they stay up all night together, sharing stories about their pasts and their fears. Eventually, they complete the project successfully and their friendship is stronger than ever.