Well, their relationship would go through a major transformation. The news of the pregnancy would add a new layer of depth and responsibility. Batman, who is used to a solitary and often dangerous life, would now have to think about the safety of his family. Selina, on the other hand, would have to reevaluate her life as a cat burglar. They would need to communicate more openly, share their fears and hopes for the future. There would also be a shift in their power dynamic. Batman may try to take the lead in making decisions for the safety of their family, which could cause some friction as Selina is an independent woman. But ultimately, they would need to find a balance to make their relationship work in this new situation.
It would change in several ways. First, there would be more intimacy on an emotional level as they are about to become parents. They would have to trust each other more than ever. Batman would be more cautious about Selina's actions, which might annoy her at times. Selina would start to see Batman not just as a partner in crime - fighting or a lover, but also as the father of her child. Their relationship would become more family - oriented, and they would probably start thinking about things like a safe place to raise the child, education (even if in a Gotham context), and how to keep their family away from their dangerous lives' side - effects.
Their relationship would likely become more protective. Bruce, being Bruce Wayne, would be extremely protective of Selina and the unborn child. He might be even more vigilant in Gotham to make sure they are safe.
Their relationship could become deeper and more complex. They now have a shared responsibility in raising the baby. Bruce might rely on Selina's more fluid approach to life when it comes to parenting, and Selina might come to appreciate Bruce's sense of order more. There could also be some arguments about how to raise the child, for example, Bruce might want a more strict upbringing while Selina wants the baby to be more free - spirited.
A great plot idea is that the pregnancy causes a shift in the dynamic between Batman and Selina Kyle. Batman becomes overly protective, which Selina initially resents. Meanwhile, Gotham's villains start to plan ways to use the pregnancy to their advantage. The fanfiction could explore how Batman and Selina navigate this new threat while also preparing for their new family member. They might even start to train their unborn child in self - defense in a very unique way.
In a fanfiction, their relationship could start off rocky. Peter's do - gooder nature would clash with Selina's more self - serving ways. However, as they spend more time together, they might find common ground. Maybe they both have a shared enemy, or they realize they can learn from each other. Peter could teach Selina about the importance of using her skills for the greater good, while Selina could show Peter how to be more street - smart in Gotham.
I really like 'The Thief and the Dark Knight'. This one delves deep into the idea of trust between Batman and Selina. It's not just about their physical attraction but also about the mental and emotional connection. The story has some great dialogue that really brings their characters to life.
First, understand the characters well. Batman is brooding and dedicated to justice, while Selina Kyle is sly and has her own moral code. Then, create a unique setting or situation for them. For example, a Gotham City under a new kind of threat that only their combined skills can handle.
Another option could be that the father is one of Selina Kyle's criminal associates. This would create a lot of internal conflict for her as she has to decide how to balance her loyalty to her criminal world and her new role as a mother. It could also lead to a power struggle within the criminal underworld as they vie for control over her and her unborn child.
Their relationship could be shown as very protective. They are both fiercely protective of their baby and this brings them even closer together. They support each other in parenting decisions and in protecting their family from any threats.
Their relationship would likely be more mature. They've both been through a lot separately, so when they get back together, they'd probably be more understanding and patient with each other.
You can start by looking on fanfiction.net. It has a large collection of 'batman selina kyle fanfiction'. There are different categories and ratings so you can easily find something that suits your taste.