Charlie Sheen and Brooke Mueller were all smiles this weekend as they spent Sunday at Sheen's Hollywood home while the actor's ex-wife was on a break from a rehab program.

The estranged couple posed for a photo with their two-year-old twin sons, Bob and Max.

Sheen is reportedly footing the bill for Mueller's treatment, after flying her out of a facility in Mexico that required her to take a controversial drug that is not legal in the United States, TMZ reported.

Sheen set his ex-wife up with a team of doctors he had previously used for his own treatment.

The former "Two and a Half Men" actor told TMZ that he hopes to move Mueller into a home in his neighborhood so that the family can spend more time together.

"Harmony is our goal," Sheen said. "Sunday was a wonderful start."

Deadline Hollywood confirmed in a report on Monday that Charlie Harper, Sheen's "Two and a Half Men" character, will be killed off the show, with the season nine premiere set at his funeral. Ashton Kutcher, who is replacing Sheen on the show, is set to be among characters interesting in buying the late Harper's home.