Los Angeles, Jul 6 (IANS): Socialite Brooke Mueller will have to go through random drug tests and attend parenting classes to regain custody of her sons.

Mueller, Charlie Sheen's ex-wife, lost custody of their four-year-old twins Bob and Max during her latest rehab stint. They are currently being cared by Sheen's another ex-wife Denise Richards.

"The Los Angeles County of Department of Children and Family Services has prepared a laundry list of things Brooke must do before the agency can sign off on her retaining custody of the twins. After Brooke is formally discharged from her rehab facility, she must immediately give her contact information to a drug testing company. She can expect to be randomly drug tested at least twice a week," radaronline.com quoted a source as saying.

"If she fails to appear for the drug test, it will be considered a dirty test. She will need to enroll in parenting classes, and successfully complete, and provide proof that she is going to 12-step meetings at least once a week. Her visitation with the twins will be strictly monitored by a social worker. In short, Brooke will have to jump through hoops to get the boys back," the source added.

A custody hearing is scheduled at the end of the month and judge is expected to extend Richards's temporary guardianship of the twins for at least another six months. During that time, social workers will be closely monitoring Mueller.

"There are absolutely no guarantees that Brooke will get custody of the twins. They are thriving in Denise's care, and Brooke must show a drastic change and commitment to her sobriety," the source said.