Firebrand beauty queen Carrie Prejean admitted on Monday that she had made an "all by myself" sex tape for an old flame when she was a teenager, telling FOX News' Sean Hannity that it qualifies as the "worst mistake of my life."

Prejean was sitting with Hannity to chat about her new book, 'Still Standing,' but couldn't escape the R-rated scandal that emerged last week after she abruptly settled a lawsuit with the Miss California USA organization.

"I was all by myself. I was sending my boyfriend at the time, who I loved and cared about, a video of me," she said. "I was a teenager at the time and never did I ever think it would come out." Watch: