Christie Brinkley’s philandering ex-husband Peter Cook is finally beginning to make amends for his mistakes.

The rumor bouncing from the Hamptons to Beverly Hills today is that Cook has secretly settled a possible sexual harassment suit that reportedly could have been filed by his 20-year-old mistress, Diana Bianchi.

She was his 18-year-old assistant when Cook began his fling with the brunette beauty behind Brinkley’s back.

Details of the settlement have not yet been revealed, but “Extra” will keep you posted on the latest!