Sources confirm that Bob and Max are currently staying with Sheen's ex-wife Denise Richards. Mueller reached out to Richards for help while Sheen is tied up working on his FX series, Anger Management, according to the sources.
"This isn't the first time the boys have stayed with Denise for a length of time," one source said.
No word on how long Richards is expected to care for them, but no matter.
"Denise would do anything for those kids," the source said.
Mueller's attorney told E! News earlier today that she entered rehab for addiction issues related to her use of Adderall.
—Reporting by Ken Baker