"I personally really didn't want him and Rihanna back together," Clinton Brown, 48, told the New York Daily News from his home in Tappahannock, Va.
"You have to have a balance in a relationship. You have to have someone who is spontaneous and whimsical but you also have to have someone who is grounded and logical."
Chris Brown and Rihanna broke off their relationship in 2009 after he physically assaulted her just hours before the Grammy Awards, nearly destroying his career.
The two singers were rumored to be seeing each other again in late 2012.
Clinton Brown said he believes there is more to the story than what has been reported.
"One has to assume because they are back together that it wasn't one-sided. You just have to imagine it was a circumstance in which they both had a disagreement," he said.
Meanwhile, Brown said he understands why his son is attracted to Rihanna.
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"She's beautiful, she's exotic, she's successful," he said, adding he thinks she'll make a good mother.
Rihanna "would make a good mom. I think she would probably have to change some of her antics -- the party attitude would probably have to change," Brown said. "I don't think they would just whimsically and spontaneously have a child with them being in this mode. That's why I don't see it happening -- but anything's possible, man."