Levi Johnston's Little Sister To Pose Nude For Playboy?

Guess Mercede Johnston must really look up to her brother, since she’s following in his naked footsteps!
Levi Johnston’s little sister, otherwise known as Tripp Palin’s aunt, will reportedly pose nude for Playboy in El Lay in the next week or two.
According to a report, Levi’s 18-year-old sister will bare it all in the issue, unlike Levi who didn’t show full frontal when he posed for Playgirl’s Winter 2010 issue.
We’re sure both Sarah and Bristol Palin are thrilled to be associated with this!
Thoughts???
[Image via WENN.]