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The baby boy, named Flynn, is the first for Kerr, 27, and Bloom, 33. The photo shows him breast feeding while Miranda lays on her side in an open floral pajama top.
Kerr also posed semi-nude while pregnant with Flynn, who weighed in at 9lbs, 12 ounces at birth. He was born Jan. 6 in Los Angeles.
The model said said her labor was “long, arduous and difficult” but she managed to get through it free of pain-relieving drugs or an epidural.
“I gave birth to him naturally; without any pain medication and it was a long, arduous and difficult labour, but Orlando was with me the whole time supporting and guiding me through it. I could not have done it without him,” she said.
“We are so happy and are enjoying our time together as a family. He is our little ray of sunshine,” she added.
Bloom and Kerr began dating in 2007 and were married in a private ceremony in July.
In her nude pregnant photo, Kerr posed for photographer Patrick Demarchelier in Paris. The photo appeared in fashion bible W magazine.
Kerr says she doesn’t plan to rush back to work.
“My career has been wonderful, but it’s not my life. I don’t feel pressure to get back to work,” she told the magazine. “For me, family is life.”