Firstly, thank you for writing for me!
I have no real squicks/ DNWs: if you enjoy writing it, then it's a strong bet I'll enjoy reading it. If there's a plot bunny that's been hopping around for some time feel free to let it run wild...
I'm happy to receive fic rated extra Mature with a cherry on the top, right the way down the ratings: all the AUs, all the kinks. Throw me some vampires, werewolves, ghosts. Seriously, whatever works for you...
I particularly enjoy stories that are rich in period detail. I enjoy both plotty adventures, and writing that is more character or relationship-focussed. Lastly, don't feel obliged to write me a happy ending if your story works best another way.
As above I'm very open to reading whatever it is you want to create. Nonetheless here are a few fandom-specific prompts that appeal to me.
The Paying Guests - Sarah Waters
I love the complex lead characters and the texture of the world that Waters creates, which feels incredibly authentic. The ending is so ambivalent that almost anything seems possible. Fluffy/domestic scenes of Lilian and Frances post-canon, or angst as the relationship falls apart? Does Leonard's ghost (literally or figuratively) haunt this pair? Alternatively, canon-divergent fic in which Lilian carries Leonard's baby to term? What if Lilian or Frances had been apprehended for the murder, or if the court case at the end of the novel had delivered a different verdict?
Affinity - Sarah Waters
Selina's betrayal is devastating. What if Selina had come on the night that Margaret waited for her? Supernatural fic in this vein would be wonderful. As would an alternative first meeting away from the prison: could Margaret have been an early champion of Selina's talents as spirit-medium, or a gullible punter? Post-canon fic in which (some way, some how) Margaret is able to confront Selina and Vigers would be intriguing. The results may be more pleasurable than painful...
I'm more familiar with the book than the film, but I'm happy for you to use elements of the adaptation.
The Goldfinch - Donna Tartt
You can't go wrong with Theo/Boris for me (although, as with all my prompts, you don't have to go down that route if it's not your thing). I love the epic scale of their friendship, and the outrageous ways in which Boris has Theo's back! A re-imagining of the all-important "forgotten" night when Boris took the painting would be awesome, whether told from a romantic or platonic perspective. Likewise, missing scenes from their misspent youth in the Nevada desert, or later in Amsterdam. I'd love supernatural fic featuring The Goldfinch itself. Has the painting somehow changed over the years?
Lady Audley's Secret - Mary Elizabeth Braddon
Who could forget the docile but lovable Robert Audley, finally forced into action by his desire to learn his dear friend's fate? For this canon, I'd love to read a modern day re-telling if that's your thing. Alternatively, George/Robert reunion fic would be wonderful. How would the pair cope raising little Georgey junior, and how could Clara fit into the picture? A story telling more of George's adventures overseas would be great. Was Robert always on his mind? Dark!fic in which Lady Audley's murderous plot succeeds, or in which she returns from abroad to disrupt the comfortable lives of those she almost ruined, would also be fantastic.
Middlemarch - George Eliot
Dorothea is a heroine of mine, and one of my first literary loves. Fic that challenges her pious façade would be fine, but no character bashing please! A canon-divergent story set during the Roman honeymoon would be great. What if Will and Dorothea had acted on their feelings earlier? Smut amongst the art galleries and ruins entirely optional. Will attempting to draw/paint Dorothea and it leading to more? Again I'd love a modern day adaptation.
The Moonstone - Wilkie Collins
The grandfather of all the great literary detectives! I'd be excited to read any of his untold cases. The adventure of the very first mystery he solved? What if Cuff secretly had a Dr Watson-style chronicler of his own? Anything that incorporates Cuff's famous love of roses would be fabulous. As would fic that plays with the connections between Cuff and his real life counterpart, Mr Whicher.