"I've got nothing to hide," she says in the ad.
And she's not kidding. The Avon beauty -- who helped write the script for the ads -- 'fesses up to having a great poker face and even a tattoo or two.
The commercials -- shot by fashion photographer Mikael Jansson, who also did the brand's men's campaign -- will also air during the Aug. 29 telecast of the 2010 Emmy Awards... so save those bathroom breaks for the long speeches, OK?
In other underwear news, British police officers have been banned from wearing sexy skivvies.