Levi Johnston Levi Johnston

Brace yourselves, ladies, because Levi Johnston is taking it all off for your viewing pleasure.

The 19-year-old father of Sarah Palin's grandson will pose nude for Playgirl magazine, his attorney, Rex Butler, told The Associated Press.

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While a formal agreement has yet to be reached with the online magazine, Butler said the photo shoot is a "foregone conclusion."

How is Johnston prepping for his ultimate unveiling? By hitting the gym three hours a day, six nights a week with a local bodybuilder.

There's no word on what exactly Johnston will be baring for the mag; Butler has yet to return TVGuide.com's call for clarification.

The photographs could potentially serve as a source of embarrassment for Palin, who is often mentioned as a possible presidential candidate for 2012.

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Johnston came under the spotlight in Aug. 2008 after Palin, Sen. John McCain's running mate, announced her daughter, Bristol, was pregnant with Johnston's baby and that the two planned to marry.

The couple broke up shortly after the birth of their son, Tripp, in December.

Johnston has also been pushing for a possible modeling or acting career, spending time in New York and Los Angeles. His first commercial for Wonderful brand pistachios debuted this week.