At her trial in May 2007, Lucille Bluth pokes fun at Lucille Austero's "pretend child [she's] had all these years." (4x10 — "Queen B.") Days later, Buster asks if that pretend child's room is available for him to sleep in. (4x14 — "Off the Hook")
Lucille 2: I wish you'd come to my rehab clinic. But, anything to help that Keystone Cop family of yours.
Lucille Bluth: Keystone Cops? Your references are as fresh as the wallpaper in the room of that pretend child you've had all these years.From "Queen B."
Lucille 2: Before I invite you into my arms, my bedroom, my bathtub with the railing, I have to ask you something: are you sure you're ready for this?
Buster: So that pretend kid's bedroom... is that not an option?
Lucille 2: No, that room is all storage now, honey.From "Off the Hook"