the all-boys thing is a Thing, but her mom could be a murphy cousin? so still have the family "business" however you'd like to incorporate it, and would make elodie and jess second cousins (which only matters as much as they let it tbh). jess moved to boston in 2000 when she was 14 and since she's a bit older, could have been elodie's babysitter/keeper as well! she was sort of a brute at that time too