"Extra" went inside the courtroom yesterday as Christie Brinkley fought back tears -- and ex-hubby Peter Cook was slammed with X-rated accusations! The architect allegedly spent a whopping $36K a month on Internet porn -- and used his then 10-year-old son's e-mail address to access the sex sites.
Peter, unaware of the storm of accusations that Brinkley's lawyers would throw at him, calmly entered the courtroom, saying, "I never thought I'd get divorced." Now Peter is admitting to having sex with former teenage mistress Diana Bianchi -- and secretly paying her off -- by hiding the money under a rock!
Aside from allegedly trolling porn sites, Cook stands accused of having an affair with fitness model Carrie Lyn Ciamarra -- in addition to the romp with a teenage mistress that ended his relationship with Brinkley. Cook's counsel says Christie is a scorned woman, bent on revenge -- and out to take custody of the kids.