O, that's a fun one to play around with! So, I started with the idea of Valancy and Cissy as sisters, but I liked the Stirlings as the terrible family too much to give them up and came up with a convoluted way to tie them all up. It is mentioned that Abel, for all his faults, was very handsome and had quite a collection of love affairs, so I invented a Stirling girl (sister of Frederick, James, Benjamin, Wellington, Herbert, Mildred and Isabel - goodness, that's a lot of Stirling siblings!) who eloped with him and died giving birth to Valancy. Then Abel marries Valancy's wet nurse who gives birth to Cissy. I had so much fun coming with Stirlings' reaction to the fact that even though their scandalous sister is dead, they are tied to Roaring Abel through Valancy :D
The fic focuses on how existing in this strange limbo between respectable and irreputable circles in Deerwood affected Valancy's personality and life, and of course her relationship with Barney when he shows up and befriends the Gay family. It's very much in the begining stages of creation right now, but I do have 2 first chapters written.