Vivid did not reveal the name of Wilkinson's sexual partner in the video however there is speculation that it is an ex-boyfriend who was also responsible for selling the footage to Vivid.
Wilkinson has hired a Los Angeles law firm to fight the release of the tape because she did not provide consent, however Vivid has stated it is "confident" in its right to distribute it.
The tape was apparently made before the former The Girls Next Door star moved into the Playboy Mansion as one of Hugh Hefner's girlfriends in 2005.
Wilkinson wed NFL star Hank Baskett last June and the couple welcomed their first child -- Hank Baskett IV -- in December.
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