Levi Johnston’s Sister, Mercede, to Pose for Playboy

Like her brother before her, Mercede Johnston isn't afraid to use a little nudity to help get her point across.

The Wasilla, Alaska resident will be quoted in a story about the Palin family that will run in the September edition of Playboy. For good measure, she will also be doing a four-page nude pictorial.

Playboy sources say that Merecde is outspoken about the Palins in the article. On a recent post to her personal blog, Mercede defended her brother against Bristol Palin's allegation that he got her drunk and "stole her virginity."

According to the New York Post, Mercede will receive "less than $25,000" for her nude spread.

Levi Johnston is said to have made over $100,000 for his Playgirl shot last year, for those keeping score of how much different Johnstons are worth naked.

You can see Mercede talk about the custody case involving her brother and Bristol Palin below.

[NY Post]