For those who are wondering how did Kim Kardashian and Kate Middleton lose their post-baby weight, here are the secrets.

Kim Kardashain, who has recently become mother to Baby North, is taking a help of a personal trainer to get back into her sexy clothes. "The Keeping up with Kardashians" star is also taking a Green Coffee Bean Pill to shed her baby fat. Kim, known for her voluptuous figure and pear shaped bum, has been sporting her post baby body in some sexy maternity clothes but now we are hearing the gossip that Kim has decided to keep her extra large clothes tucked away in a cupboard so that she has the motivation to get back to US size 4.

While the Duchess of Cambridge, Kate Middleton, who sat the trend of maternity clothing, is losing all her weight by breast feeding, Prince George. A source has told Hollywoodlife.com that Kate has not been going on crazy crash diets and over the top exercise routines for getting back her body shape.

It is believed that she is going the old fashioned way, yoga. And we must say that this seems to be really working for her. She has been seen sporting a flat tummy on all her baby walks with Prince George and at her first public appearance in Marathon. Kate's recent appearance was a surprise for many as people were not expecting the new mom to make her first public appearance until September 12.