Maybe if the younger character was one of the girls' unseen (to that point) daughters? The consensus was that Blanche had four kids (two sons, two daughters), while Rose had an undetermined number. We met Blanche's Rebecca and heard about Janet and Matthew...I'm not sure if "Skippy" is canon or just a joke. Her inability to get along with Janet was a plot point in more than one episode. Rose referred to "all of her kids" so often (as a group) that I got the impression it's a higher number than Blanche's, though they were not utilized as much. We met Rose's daughter Kiersten, but she was a bitch (IMO) and I would not want to deal with her again. Sophia of course had Gloria, Dorothy, and Phil (RIP--"Rest in Peignor"). I was joking about them bringing in a "kid" like a child--a la Cousin Oliver on Brady Bunch or Seven on Married with Children. THAT would have been the death knell.