One memorable moment could be when their kiss is a long - awaited reunion after Barry has been away for a while in the fanfiction. It shows the deep love between them.
The kiss can be a turning point in the fanfiction. It might inspire Barry to be more protective of Iris or vice versa. Let's say, after the kiss, Barry realizes he has more to lose and becomes more determined in his battles. It also gives the story a more romantic and engaging aspect for the readers who enjoy the relationship aspect of 'The Flash' universe.
Barry's super speed could make the pregnancy journey both exciting and nerve - wracking. He could use his speed to quickly get things for Iris like her favorite food or pick up pregnancy books from the store in a flash. However, his speed also means he has a higher metabolism and his body operates at a different level. There could be concerns about how this affects the baby. For example, if he holds Iris while running at super speed, there might be questions about the impact of the vibrations or the sudden movements on the unborn child.
Iris remains alive in the Flash comics. The creators have kept her as an important and ongoing presence, and her role continues to evolve and contribute to the overall narrative.
One possible storyline could be them preparing for the baby. Barry might be worried about how his superhero life will affect the family, so he tries to make the city as safe as possible before the baby arrives. He could be seen training other speedsters to take over while he takes paternity leave. Iris, on the other hand, could be writing a series of articles about being a working mother in a world with superheroes, sharing her experiences and hopes for the future.
Maybe in the fanfiction, Flash discovers Peter's identity in a very unexpected way, such as seeing Peter's Spider - Man suit by accident. He then has to decide whether to keep the secret or not. He might struggle with his own jealousy towards Peter and the newfound knowledge. If he decides to keep it a secret, it could lead to an unlikely friendship between them, with Flash helping Peter in small ways without Peter knowing it's him.