Strauss-Kahn met with Tristane Banon at a Paris police station. The two were questioned by investigators, who have not yet decided whether to pursue the case.
Banon said she was attacked by Strauss-Kahn during an interview for a book she was writing in 2003, but he called the claims imaginary and slanderous.
The 32-year-old woman claimed he refused to apologize or even look at her during the session with investigators.
A New York City hotel maid, Nafissatou Diallo, also accused Strauss-Kahn of attempted rape in May, but those charges were later dropped. Diallo has filed a civil suit.
One challenge for Banon's case, which was filed after Strauss-Kahn's May arrest in New York, is that the incident in question happened eight years ago.
Banon and Strauss-Kahn did not speak to reporters as they arrived separately at the police facility and refused comment when they left.
The Associated Press contributed to this report.