It's not literally impossible, but I'm going to go with no, for the simple reason that they were protrayed to us as female. Unless you think that Boney is screwing with us I think it's a very safe bet that the daughters are female (are, to be more exact, they are worshipped as female in at least some of the places we're likely to find followers of them)@mathymancer, could one or both of the daughters be male gods? Ranald's more commonly portrayed as male in the Empire but he is also portrayed as female. Might be a similar situation with the daughters.