Peterson's Mistress Seeks To Stop Sale Of Nude Photos Amber Frey Admits To Posing NudePeterson's Mistress Seeks To Stop Sale Of Nude Photos Amber Frey Admits To Posing Nude POSTED: 8:27 a.m. PDT October 21, 2003 UPDATED: 8:38 a.m. PDT October 21, 2003 LOS ANGELES -- The woman who admitted having an affair with accused killer Scott Peterson filed a federal lawsuit Monday in an attempt to stop attempts to sell nude photos of her. Amber Frey said she posed nude and partially clothed for a Clovis modeling agency in 1999. Though she decided not to continue with the agency,...