Hollywood superstars Brad Pitt and Angelina Jolie have no immediate plans to marry, according to his grandmother.

BETTY RUSSELL has confirmed she's had no conversations with Pitt about any impending nuptials, although she was glad to hear the news he has filed for legal guardianship of Jolie's adopted children, MADDOX, four, and ZAHARA, 11 months.

The 82-year-old Oklahoma native says, "I don't believe they've planned the wedding yet. He hasn't told me anything about that."

But she adds, "He's a natural dad. It's going to be nice for us all to have tiny children around for Christmas."