Hollywood has seem to be bitten by post baby weight loss after Kim Kardashain and Kate Middleton got back into shape post birth. Now, it is Jessica Simpson who has gone ahead to show her post baby body (which is not as slim as Kate Middleton).

In spite of media criticism for weight gain, the singer who is now mother to son Ace Knute, has been spotted flaunting her post baby weight body. Yesterday she was seen in Calabasas, California in an animal print loose jersey and skinny jeans with flared bottoms. The singer kept her hair open and carried a black tote bag to compliment her look. Simpson who has reportedly nabbed $100,000 for the first photos of her son, graced the cover of the recent issue of US Weekly.

About the joys of motherhood, she told the US weekly magazine that, "I have this huge sense of accomplishment, and I feel in my heart that I'm done."

Simpson and her fiancée, Eric Jhonson, are now all set to tie the knot. The couple got engaged in 2010 and Simpson told US Magazine that after having two beautiful kids they would be walking up the aisle this year.

Coming to Jessica Simpson's post baby weight loss techniques, the rumors are that she is going Kate Middlton way to come back in shape. Kate Middelton who is blessed with great genes has shed all her baby fat within a month and she is attributing her weight loss to yoga and breast feeding. So would Jessica Simpson be stepping in Kate' shoes to get her sexy body back? 15 months back after giving birth to her daughter, Jessica Simpson had gone on a special diet and exercise regime to get her sexy curves back.