In 'Batman and Supergirl love' fanfiction, a recurring theme is the exploration of their individual traumas. Batman has his parents' death and his dark past, and Supergirl has lost her home planet. Their relationship can be a way for them to heal each other. Another theme is the idea of them teaming up not just as superheroes but as a couple against common threats. It gives a new perspective on how they interact and support each other in different situations.
Yes, there are some. You can start by looking on popular fanfiction websites like Archive of Our Own. There you might find stories that explore a relationship between Batman and Supergirl. However, the quality can vary greatly.
Supergirl's exuberance and her willingness to trust can sometimes clash with Batman's more cynical view. However, in the context of a romance in fanfiction, this can be a source of growth for both of them. Batman might start to trust more because of Supergirl, and Supergirl might become more cautious under Batman's influence. Their personalities also play a role in how they show affection. Batman might be more reserved in his displays, while Supergirl could be more open and affectionate, which could lead to some sweet and sometimes awkward moments as they navigate their relationship.
Alfred should be included. He can provide Batman with support and advice, and his unique perspective on things could add an interesting element when Supergirl is around. He might even offer her some tea and wise words.
One characteristic is that they usually focus on the heroic aspects of Batman and Supergirl. For instance, they might show how Batman's strategic mind and Supergirl's powers work together to overcome a powerful threat. Another aspect could be the exploration of their different personalities. Batman is often brooding and methodical, while Supergirl is more optimistic and powerful - hearted. Their interactions based on these personality traits can be really engaging in fanfiction.
You can try Archive of Our Own (AO3). It has a vast collection of fanfiction from various fandoms, and there's a good chance you'll find some 'batman trains supergirl' stories there. Just use the search function and type in the relevant keywords.
A plot could involve a time - travel scenario where Batman and Supergirl are sent back in time to prevent a major event that would change the future of both their worlds. They would have to work together, using their different skills and knowledge of their respective eras.
In some fanfictions, Batman trains Supergirl in combat specifically against Kryptonian threats. Since he has studied various alien species, he imparts his knowledge on how to fight opponents with similar powers to hers. This could involve creating special training scenarios and weapons that can simulate Kryptonian abilities.
Lex Luthor would be a great choice. He could be causing trouble in Gotham as well as Metropolis. His intelligence and resources would pose a significant threat to both Supergirl and Batman. He might be trying to manipulate events to make the two heroes fight each other so he can carry out his evil plans.
There may be some fanfiction that attempts to handle this in a more family - friendly or non - explicit way. However, in the mainstream DC Comics canon, such a plot would be a huge departure and not part of the official storylines. Some fanfiction writers might create alternate universes where strange pairings occur, but it's important to note that these are not official and may vary greatly in quality and content.