The Notting Hill star, 54, told the paper that his romantic relationship with Eberstein was in the past, but she and their 2-year-old baby boy are a very big part of his life.
"I love him very much," Grant said while attending a race in Skane Knutstorp. He added that the tot, whose name has still not been disclosed, was "excellent."
Grant also spoke affectionately about his ex Eberstein. "We are very good friends and she's a very good mother," he said. His son and Eberstein live within walking distance to the actor in London, which allows Grant to see them "most days, all the time."
Us Weekly confirmed the news of Grant's love child with Eberstein this past January, after obtaining a copy of the baby's birth certificate. The boy was born in September 2012, but Grant was not registered as his father until 2013.
The actor is also a dad to two other kids: daughter Tabitha, 3, and son Felix, 21 months, with Tinglan Hong. Coincidentally, both Hong and Eberstein overlapped in pregnancies.
Speaking with Ellen DeGeneres in April 2012, Grant said welcoming his daughter Tabitha was "quite life changing" and "a very nice surprise."
The British bachelor famously dated Elizabeth Hurley for 13 years before dating writer Jemima Khan from 2004 to 2007. See pics of Hugh and Elizabeth catching up this summer.
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