“My inspiration,” the proud mama captioned the beautiful black and white photo of the sisters donning matching white ensembles.
In August, the Grey’s Anatomy star, 44, and the Beverly Hills, 90210 alum, 46, helped their daughters with a lemonade stand.
Recently, Dane opened up about his battle with depression, which prompted him to take a break from his TNT series The Last Ship in April.
“I took some time off — I was dealing with some depression, which was kind of odd to me,” he said. “I felt very conflicted about it because I didn’t really feel like I had anything to be depressed about.”
“Now I take a medication called Pristiq, which I thought just sounded like a good mood,” he added. “And the depression is gone.”
He went on to shatter the shame of mental illness.
“You’ve got to listen to your body,” he said. “It’s a very serious thing. Like I said, I felt very conflicted because I couldn’t figure out what I was depressed about. But it’s very real.”