"Jessica has nothing to hide," says Jessica Gibson's attorney Gloria Allred in the sexual harassment case

Credit: Andrew Purcell

From the start, the sexual harassment case filed by Rob Lowe’s former nanny Jessica Gibson, seen here in an exclusive PEOPLE photo shoot this week, became a high-stakes game of he said/she said.

“Jessica has nothing to hide, and we wonder if Mr. Lowe will take that position as well,” attorney Gloria Allred, who has a May 19 date to depose the former Brat Packer, said of her client – who on April 14 filed suit accusing both Rob, 41, and Sheryl Lowe, 46, of sexual harassment and behavior that was “offensive, insulting, unwelcome, mean, perverted, crude and lascivious.”

The Lowes’ attorney, Stanton “Larry” Stein has countered, by effectively calling Gibson a liar in a statement he issued to the Today show. “An investigation of dozens of present and former employees has failed to find one single person to verify her allegations,” the statement said.

For more on the case, including interviews with Gibson’s family plus Lowe’s friends and former employees, pick up the latest PEOPLE, on newsstands Friday