The year-old former fiance of Sarah Palin's daughter Bristol has posed nude for the cover of. Levi Johnston - a former caribou hunter who has also featured in an advert for nuts - fathered a son with Bristol, 19, but the couple broke up in December after baby Tripp was born. The relationship between him and the Palins since then has often been strained, mostly over visitation issues. His choice of a new career is likely to further embarrass Palin, who says she hasn't ruled out running for office again.

To get ready for his close-up, Johnston is training three hours a day, six nights a week at an Anchorage gym with a local body builder. A formal agreement hasn't been reached with the online magazine, but the photo shoot is a "foregone conclusion," said Johnston's attorney, Rex Butler. Johnston fathered a son with Bristol, the year-old daughter of Sarah Palin, the former Republican vice presidential candidate who resigned as Alaska's governor in July. Publication of the photographs could be a source of embarrassment for Palin, often mentioned as a possible presidential candidate. Her memoir, "Going Rogue," will be published next month and pre-sales already have made it a national best seller.

Heads up! Mercede Johnston has a nude pictorial in the new Playboy! Sadie, as she's known, is a celeb because she's the sister of Levi Johnston , who's a celeb because he had a baby with Bristol Palin , who is famous because her mom, Sarah Palin ran for the vice presidency. Sadie also says that despite her denials, the Dancing With the Stars star has had numerous plastic surgery procedures including liposuction and a number of chin lifts.

Levi Johnston, the father of former Alaska governor Sarah Palin's grandchild, plans to pose for an online nude magazine, lending new meaning to the term media overexposure. The hunky year-old former high school hockey star and one-time beau of Palin's daughter Bristol has already penned a tell-all article and given dozens of television interviews bashing the Republican vice-presidential candidate. But soon Alaska's most famous teen will pose for Playgirl, an online magazine featuring photos of nude men that enjoys a devoted following of women and gay men.