Levi Johnston to Pose Nude for Playgirl

Levi Johnston, the father of Sarah Palin's grandson, will pose nude forPlaygirl, his attorney said on Wednesday.

Details of the arrangement with Playgirl -- which has been published exclusively online since its print operation folded in early 2009 -- remain to be fleshed out, according to the Associated Press. "Johnston's attorney, Rex Butler, said Wednesday that a formal agreement has not been reached with the online magazine but adds it's a 'foregone conclusion' it will happen," the AP reported.

The former high school hockey player intends to be in top shape for the shoot, training three hours per day, six nights a week, at an Anchorage gym with Marvin Jones, a former Mr. Alaska competitor.

Johnston, 19, fathered a son with Bristol Palin, the daughter of the former Alaska governor and 2008 Republican vice-presidential nominee. The baby, Tripp, was born in December, and the couple broke up a few months later.

In September, Johnston appeared in a tell-all article for Vanity Fair and revealed the goings-on around the Palin household.