PIPER PERABO was terrified when she filmed her first love scene, because DEMI MOORE stared at her while she acted out sexual intimacy with ASHTON KUTCHER.
Moore refused to take her eyes off the COYOTE UGLY star during the sizzling scene for CHEAPER BY THE DOZEN, and Perabo hopes she never has to repeat the experience.
She says, "She would come on set. It was fairly intimidating."