One possible scenario could be that they are in the middle of a life - or - death battle against a common enemy. In the heat of the moment, as they realize how much they rely on each other, they share a kiss. It could be a moment of pure instinct and connection.
Maybe it takes place in an alternate universe where the world is a bit different. Batman is more open with his emotions. He takes Wonder Woman to a special place, like an ancient, hidden garden. There, he tells her how much she means to him, not just as a teammate but as someone he has romantic feelings for. He might talk about how her strength and beauty have always attracted him, and how he has been trying to hide these feelings for a long time but can't anymore.
Batman might avoid Wonder Woman in fanfic because he's afraid of getting too close to someone with such strong emotions. He's used to suppressing his own feelings, and Wonder Woman is very passionate. Her presence could stir up emotions in him that he doesn't want to deal with in the fictional stories.
In Batman and Wonder Woman fanfic, 'branches' could refer to different storylines or plot directions. For example, a fanfic might start with a common premise, like Batman and Wonder Woman teaming up to fight a new villain in Gotham. Then, one branch could be that they discover the villain has ties to an ancient Amazonian curse, leading them on a journey to Themyscira. Another branch might involve the villain being part of a secret society in Gotham, which Batman has to infiltrate with Wonder Woman's help.
One interesting scenario could be that they kiss during a battle to gain a sudden burst of power. Their combined strength and the emotional energy from the kiss helps them defeat a powerful enemy that neither could have faced alone.
Maybe in a fanfiction, they kiss during a moment of extreme danger. For example, Batman is about to sacrifice himself to save Wonder Woman and she stops him with a passionate kiss. This could be the start of a new relationship dynamic where they start to question their previous boundaries and how they feel about each other.
Often, there is the theme of forbidden love. They are both part of the Justice League, and there could be rules or unspoken agreements against such relationships. So, their kiss in fanfiction might be a rebellious act. Also, the theme of mutual understanding is present. They both have experienced loss and have a strong sense of justice. A kiss could be a sign that they truly understand each other on a deeper level, beyond their superhero personas.
One possibility could be that they are in the middle of a battle against a common enemy. As they fight side by side, there's a moment of intense connection. Maybe Wonder Woman saves Batman from a near - death situation, and in the heat of the moment, their eyes meet and they share their first kiss. It could be a spontaneous expression of their long - hidden feelings for each other that they've been suppressing due to their respective duties and the complex nature of their relationship in the superhero world.
One possible plotline could be that Batman sacrifices himself to save Wonder Woman from a powerful enemy. Maybe he takes on a self - destructing device or holds off a horde of villains while she escapes. Another could be that he is poisoned by a new and deadly toxin, and in his final moments, he imparts some crucial knowledge or advice to Wonder Woman.
A possible storyline could be that Wonder Woman comes to Gotham to investigate some strange occurrences that seem related to her world. She teams up with Batman, and they discover a cult that is trying to summon an ancient evil. Along the way, they learn to respect each other's methods.
Yes, there are likely fanfics out there with Batman and Wonder Woman getting married. The DC Comics fan community is quite creative, and many fans like to explore different relationship dynamics between their favorite characters through fanfiction.