A really cool story could be set in an alternate universe where Supergirl and Batman are the last two heroes left. They have to rely on each other completely and in the process, they discover new aspects of their powers and themselves. Their relationship could evolve from just being allies to something more complex and deep, with Supergirl teaching Batman to have more faith and Batman teaching Supergirl more about strategy.
Supergirl is also a great character in fanfic. Writers can play with her powers, her fish - out - of - water experience on Earth, and her relationship with Batman. Her naivete about some Earth things combined with her powerful abilities make for interesting stories.
One common plotline is a team - up where Batman and Supergirl join forces to take on a powerful villain like Darkseid. They combine their different skills, Batman's strategic mind and Supergirl's super - strength and flight.
Lex Luthor would be a great choice. He could be plotting against both Batman and Supergirl. He might try to use his intellect to create a weapon that can nullify Supergirl's powers and outwit Batman's strategies at the same time.
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.
First, focus on their characters. Show Batman's intelligence and brooding nature, and Supergirl's strength and kindness. For example, you could start with a scene where Batman is analyzing a new threat in the Batcave and Supergirl flies in with some new information she's discovered. This immediate contrast sets an interesting tone.
One idea could be that Batman and Supergirl team up to stop a powerful alien threat that is beyond the capabilities of either of them alone. They start off distrusting each other due to their different methods, but as they face challenges, they learn to work together and respect one another's skills.
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.
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.