looking for a pb slash line between a married couple. one of them has a very prominent or high-powered job, and the other is a homemaker who, in public, is very retiring and deferential to his husband - but in private he's by far the more dominant one. i'd play either side.
alternatively, a married couple with an age gap: the bratty, demanding, topping-from-the-bottom younger one, and the possessive, over-protective older service top who loves every minute of it. i'd play the older one.