Though Hong's pregnancy wasn't planned, "I like my daughter very much," Grant revealed. "Has she changed my life? I'm not sure. Not yet. Not massively, no. But I'm absolutely thrilled to have had her -- I really am. And I feel a better person."
Grant -- who has never been married, despite dating Elizabeth Hurley for 13 years -- said he's wary of spoiling his little girl.
"There are few things in life I believe in 100 percent, but one is not giving your children money," the actor explained. "I see nothing but f-ck-ups among my trust fund friends. It's like 99 percent f-ck-ups. So I would not want to do that to my children, no."
When his rep confirmed Tabitha's birth in November, Grant's relationship with Hong was described as "a fleeting affair."
"He and the mother have discussed everything and are on very friendly terms," the rep told Us Weekly.