Charlie Sheen claims Denise Richards wants him to father a third child.

Crazy. Nuts. Bananas. Insane. Woooooohoooooo. Coo-coo. These are just a few words and expressions that describe Charlie Sheen and Denise Richards........
The Insider:
Yesterday, CHARLIE SHEEN spoke exclusively with Entertainment Tonight's MARK STEINES about his new custody battle with ex DENISE RICHARDS for their young daughters SAM, 3, and LOLA, 2.
Now, despite their bitter feud, the "Two and a Half Men" star says that Denise has, amazingly, asked him to help her have a third child -- as the biological father.
"There was a request for a donation," says Charlie. "Without getting into it here ... there is a specific document relating to this that I am going to reserve for a court."
Would Charlie, who recently announced his engagement to girlfriend BROOKE MUELLER, consider the possibility?
"I would sooner, in exactly what I'm wearing, walk on the surface of the moon," he proclaims. "Does that answer it?"
According to a published report, Denise has said that the story is absolutely not true. But Charlie counters, "She can make every claim in the world. But what she stated in something she wrote would completely and totally defy that."