Some fanfics focus on the challenges they face as individuals and how they support each other through those. For example, Casey dealing with his past traumas and Brett being there for him, or vice versa. There are also stories that explore their friendship evolving into something more romantic, with all the cute and angsty moments that come with it.
Their relationship would likely become more intimate and serious. With the pregnancy, they'd have to rely on each other more. They might start having deeper conversations about their future together, like where they'll live and how they'll raise the child.
One great Brett and Casey fan fiction story could be about them handling a difficult rescue together outside of the normal calls at Firehouse 51. It might explore their growing relationship as they rely on each other's skills during the high - stress situation.
You can try looking on fanfiction websites such as Archive of Our Own (AO3). There are a large number of fan - created stories there, and you can search specifically for 'Chicago Fire Brett and Casey fanfic'.
Maybe in the fanfiction, the pregnancy could be a result of a one - time passionate moment between Brett and Casey. As they deal with the news, they start to plan for their future together. Brett might worry about how being a mother will affect her career as a paramedic, while Casey could be thinking about providing a stable home for his new family. Their friends at the firehouse could either be very supportive or there could be some drama among them regarding the situation.
Archive of Our Own (AO3) is another great place. It has a well - organized system for finding fan fictions. Just type in 'Brett and Casey' along with 'Chicago Fire' in the search bar, and you'll get a list of relevant stories. The site also allows you to sort by popularity, word count, and other criteria.
Another theme is professional growth. Fanfics might show how they learn from each other and improve their skills as firefighters. For example, Casey might teach Dawson a new technique for handling a certain type of fire, and Dawson could share her insights on dealing with victims.
In fanfic about Casey being injured in Chicago Fire, he might face various challenges. Fellow firefighters could rally around him. Maybe they'd struggle to keep the team spirit high while Casey is recovering. For example, Severide might take on extra responsibilities and feel the pressure.
One possibility is that Casey's injury makes him more determined. He could start training secretly while still recovering to prove he can come back stronger. This would show his strong will.
Her close friends at the firehouse, like Casey or Severide, could be great allies. They've always been there for her, and during her pregnancy, they could offer practical help like covering for her shifts when she's not feeling well or giving her advice on dealing with the pregnancy while working. Stella could also be a strong ally as another female in the firehouse who can understand the unique challenges Brett might face.