I'd love a way to stop the lactation status or fully remove actions relating to it from what people can do to you in sex (such as put it under the removable fetishes tab in gameplay options). I don't judge if people like it, but I don't and NPCs refuse to do anything but milking related actions to me.
Even selecting the "No milking" option with pawn owners only means they don't use pumps. They'll still grope and breastfeed, which still does the same exact thing.