"He had another one last week. He has five," the actress told host Andy Cohen. "He was over 50 when he spawned them all!"
"He's actually an enchanting dad -- really, really sweet," she said. "Having these kids has transformed him from a very miserable person into a fairly miserable person. It's improved him. He's gone up the scale."
Grant already shares a son and daughter with Eberstein, and is also dad to two children with ex-girlfriend Tinglan Hong. He and Hurley split in 2000 after 13 years of dating.
"He's still my best friend and he's very important to me," the actress said in a 2016 interview with Lorraine.
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