Maybe this is a long shot, maybe it's not (obviously hoping for the latter) but I would love to find a private line (threading only & no games or gpsls, please) for this woman, though it would be slightly AU from The Dark Knight Rises. Now, since my idea involves spoilers for the movie, I put it behind a cut tag, so look at your own risk. It does involve one specific character, but I am willing to work out other ideas against other characters as well from any of the Nolan Batman movies. My only limit is I am not looking for femme lines at the moment (this may change in the future).
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The line I am looking for would be something based around Bane & Miranda/Talia's relationship. I'd like to do it where after he was excommunicated from the League Of Shadows, she went with him and instead of a friendship between the two, they were lovers. Obviously this line would be AU (I'd like it to be done in such a way that when they go to destroy Gotham, both make it out alive), so I would like to tweak the detail about Bane's mask and have it so he will remove it from time to time and doesn't always wear it like in the film. He would still be a brute and a beast of a man, but when it comes to Miranda/Talia, he would do absolutely anything for her without hesitation.
Of course this needs some serious work, since it's just a rough idea that popped into my head after seeing the movie, so I'm open to suggestions & ideas.