It stands to reason than if Lulu (or Nica, as some of the Russian boys call her (short for her middle name, Veronica)) makes certain slightly older women feel threatened by her, there would be a younger verson of herself to creep up on her and keep her on her toes!
And she says that she's not old, she's experienced. Dimitri Novokoff down there says she'll be a real cougar someday, once she starts going for younger men. I think he's just jealous that she gets along with his daddy better than he does.