At the age of 73,
Joan Collins says she's finally too old for Playboy.
Collins posed for Playboy when she was 49 to show women they could still be beautiful as they grew older.
But when asked if she'd do it again to make the same case for 70-somethings, Collins replied: "No, no no."
Collins is still proud of her body and works hard to stay in shape.
But there are two features she doesn't like no matter what she does - her knees and her elbows.
She says "they're the most unattractive parts of a woman's body."
Collins is out with a book called The Art of Living Well: Looking Good, Feeling Great.