When Brinkley was asked about her own marital history and that she married twice in the two years after separating from second husband Billy Joel, she emphasized how amicable her split with the singer was, saying "there was no sex scandal& no contentious situation created by lies, cheating, fabrication. It can't be compared to this situation."
And her own claims that Cook was prone to speeding were upturned by revelations that she herself had been in at least three car accidents in recent years, which she referred to as "fender-benders," and once drove away after her son and his friend slipped out of the car to go play at Maidstone Golf Course.
As she left court, Brinkley expressed support for Alex Rodriguez's wife, Cynthia, who just filed for divorce from the slugger, advising her to "Hire Bob" -- a reference to her lawyer, Robert Stephan Cohen.
She said she doesn't regret marrying Cook because "I have [daughter] Sailor as a result of that union." Jack is Brinkley's son with third husband Richard Taubman.
The trial has featured a string of steamy revelations about Cook's sex life, including a fling with an 18-year-old office assistant, a $3,000-a-month tab for online porn, and the fact that he masturbated in front of his home computer cam.
The sordid details continued to spill out of the courtroom today as Herman, appointed by the court to help settle the competing child custody claims, said that Cook had confided that he has had 35 sex partners in his life.
Herman said that Cook's affair with 18-year-old Diana Bianchi reflected "colossally bad judgment fueled by narcissism."
According to Herman's report, Cook "needs constant reassurance that he is a terrific guy -- handsome, accomplished, etc. While some people need some feeding of the ego, Mr. Cook has an insatiable appetite." Cook also lacks "insight into his own personality and how that impacts on others."
In the report, Herman wrote that Cook's "selfishness, narcissism and childishness has caused great harm to his children."
While it's "normal" for men to look at computer pornography, it's "outside of the bell curve for men to show themselves and engage in certain direct sexual behavior over the Internet," Herman wrote.
While stating that Cook's behavior was "terribly destructive," Herman also pointed fingers at Brinkley, saying that "someone could raise questions about the mothers' four marriages and say she is not a good role model either."
Wearing a tan sweater over a powder-blue dress, Brinkley sat quietly in court. She took notes, dabbed her eyes with a tissue and then ran out of the courtroom to answer a call on her cell phone. Cook sat passively at the table with his lawyers, at one point showing them a message he'd received on his iPhone.
Herman shot down Cook's attorney's argument last week that Brinkley was blinkered with rage by saying, "It is completely understandable that she would be both appalled by her husband's behavior and concerned for the safety of the children."
When Cook's lawyer Norman Sheresky pressed the point of Brinkley's fury, the psychiatrist conceded that it was "not a great idea" for Brinkley to push to have the divorce case in open court, but he repeated his view that her anger was understandable.