>>18966 From Lynncoln fanfiction. More precisely, the idea of having a child or children, which quickly turned into a rough image of the future Lacy. Then similar things started creeping into other ships, and SB99's drawing of Lincoln children with his sisters and Rita emerged. Besides Lacy (who was already formed, at least in appearance), no one was recognizable character, they all were pure concept copie of the original girls. Then people got to like this idea, and development began.