Update On Christie Brinkley's Divorce

We haven't heard much from Christie Brinkley since news broke that her husband Peter Cook was having an affair with an 18-year old girl. But Christie is determined to make Cook pay, and isn't afraid to expose more dirty details of their marriage while she's at it.

She claims her husband went on porn sites while they were married, including swinger sites in search of single women. A source tells Access Hollywood Christie wants the case publicized because she's still spitting mad at him for what he did.

To make matters worse, the two are involved in a custody battle with their children Jack, 13, and Sailor, 9. That's such an awful thing to have to go through! We hope Christie gets everything and leaves Cook with nothing!