Charlie Sheen: Denise Richards Can Sue Me

The public battle between ex-partners Charlie Sheen and Denise Richards stepped up a notch on Wednesday (May 21) following her appearance on the U.S. 'Today' show, where she discussed a reported email about Sheen's sperm.NBC News obtained an email that was allegedly sent from Richards to Brooke Mueller, Sheens fiancee, requesting a sperm donation from her ex-husband."That email is not legitimate," Richards explains, saying she was with Bon Jovi guitarist Richie Sambora at the time the email was reportedly sent. "If I wanted anybody's sperm, I'd have asked for Richie's."Sheen retaliated via a statement saying, "Her claims that her e-mail has been fabricated or altered in any way to create this story are absurd. The mere fact the she continues to publicly discuss and harass both Brooke and me three years after our separation which, for the record is longer than the actual length of the marriage, is beyond desperate and speaks volumes."He adds, ""I will no longer sit back and be egregiously painted as a liar. If any proof can be established that these are not in fact her words and statements verbatim, I openly invite her and would even encourage Ms. Richards to sue me in a court of law."Photo courtesy of ABC.