U.S. shock jock Howard Stern has ruled out the idea of having a child with model wife Beth Ostrosky STERN - insisting he's too old to become a father for the fourth time.

The controversial radio host, who shares three grown-up children with first wife Alison Stern, exchanged vows with Ostrosky in New York last October (08).

But the 55 year old is adamant there will be no new additions to his brood with the blonde beauty.

He says, "I dont' want to be (in my sixties) running around with a five year old. I have three grown children and to start all over again, that seems insane to me."

But the news isn't a shock to his second wife, 36-year-old Ostrosky, who admitted a month prior to their nuptials that she preferred keeping a barnyard of animals to having babies of her own.

She told WENN: "I'm adopting lots of puppies, dogs, kittens, a whole zoo in my house. But no human beings. I don't have plans for children."