Denise Richards and Charlie Sheen's divorce proceedings have just got very messy following damning allegations made by the actress about her estranged husband's porn obsession. The actress has lifted the lid on Sheen's porn chasing internet as part of new court papers, filed yesterday, claiming the actor has threatened her.

In the new documents, obtained by entertainment news website TMZ.com, Richards alleges that Sheen has also put the couple's daughters at risk through his alleged pornography and prostitution habits. Richards alleges Sheen pushed her, shoved her and threatened to kill her during many fights and then made threats against her parents. But that's not all - the explosive new court documents also expose Sheen's porn passions.

In the court papers Richards claims, through her new lawyer Neal Hersh, that Sheen has problems with gambling and prostitution, and he told her that he has a madam (prostitution boss). But the most damning part of the new filing comes as Richards recalls spying on Sheen as he surfed the internet during their brief reconciliation last year. She claims she discovered Sheen was visiting websites with "very young girls, who looked underage to me, with pigtails, braces, no pubic hair, performing oral sex with each other."

Sheen's publicist, Stan Rosenfield, says, "Charlie Sheen has been hit with these ridiculous charges over and over and over again and has chosen to be a respectful gentleman and just respond with no comment." And Sheen adds, "This is a most obvious immature and transparent smear campaign designed to hurt, embarrass and ultimately extort me. I deeply regret her response to my request for the court to decide what's best for our children. (It) has taken the form of baseless allegations that I deny. For the sake of my children, I am electing not to reciprocate in kind."

Richards, who first filed for divorce from Sheen in March, 2005 - while she was heavily pregnant with their second daughter, has been granted a restraining order, while a Los Angeles Superior Court judge has demanded that Sheen's visitation with his children be monitored. The actress has also reportedly hired security guards to protect her.

(This news article provided by World Entertainment News Network)