from www.radaronline.com – Charlie Sheen’s marriage is exploding in a public scandal of enormous magnitude that is dwarfing the headlines made by his arrest for domestic violence and rehab stints for both husband and wife.

Sheen and Brooke Mueller have had multiple sex partners together in the short time that they have been married, RadarOnline.com has learned exclusively. One source estimates that they have shared as many as 10 partners – some male and some female.

It’s an outrageous development to an already scandalous marriage. As RadarOnline.com reported on Tuesday, one woman is about to come forward and tell her story of having sex with both Charlie and Brooke.

We’ve also learned that the woman is single, not a prostitute and is shopping her story to the highest bidder. One source told RadarOnline.com that she has already had an offer of $40,000 to tell her story.

And she is not alone. There are many other women, and a few men, who have participated in sexual activity with Brooke and Charlie during the course of their marriage.

“It’s more twisted than anyone knows or has suspected,” a source who knows both of them told RadarOnline.com. “It’s crazy.”

Charlie is currently in rehab and awaiting trial in Colorado on domestic violence charges. Brooke bolted from two rehabs in recent weeks and, according to her lawyer, is undergoing rehab treatment at home. Medical experts have told RadarOnline.com that rehab treatment at home is a bad idea with far less chance of succeeding than rehab inpatient treatment.

Brooke has been smoking crack and has an alcohol problem. Charlie has been using cocaine and also boozing again.

They received a visit from the Department of Children and Family Services recently and it is likely there is still an open case file.

Even more outrageous then Charlie’s arrest and both husband and wife being in rehab at the same time are the details that are now coming out about their twisted marriage. Sharing sex partners during the short time they’ve been married became commonplace for Sheen and Mueller and the woman who is shopping her story now is prepared to tell all to the highest bidder, RadarOnline.com learned.

And beyond that one women, several other women and men have similar stories to tell. The story of Hollywood excess, drugs, booze and three-way sex is about to explode into a new batch of headlines that reps from both sides will be powerless to counter.