Levi Johnston Reacts to Sarah Palin on ‘Oprah’

Sarah Palin called him "Ricky Hollywood" and noted his so-called "porn" career while talking to Oprah Winfrey today -- only ET is with Levi Johnston to get his reaction to her interview.

The former Alaska governor is pitted against the father of her grandchild in a public battle of words, her daughter's ex paying close attention as she calls him a liar while daughters Willow and Piper watch on.

Sarah went on to tell Oprah that Levi never lived with them, a point of fact that Levi contends. "She's basically calling me a liar," he fumes. "That's total bullsh*t. I did [live with the Palin family] for a few months, then we split up and that was it."