“The May issue of Playboy is unforgettable with ‘Dancing With The Stars’ Karina Smirnoff on the cover & nude inside,” Playboy’s founder Hugh Hefner tweeted late Wednesday announcing the news.

This won’t be the 33-year-old’s only memorable milestone for the year – she’s prepping to be a bride-to-be as well!

He met the dancing star through a mutual friend, UFC fighter Chuck Liddell, and the two began dating in October 2009. He popped the question in November with a $95,000, 4.5 carat diamond engagement ring. The pair is planning to wed this fall.

In January 2011, Penny agreed to a one-year, $3 million contract with the Detroit Tigers.

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