The 'Fashion Police' co-host, who recently attended the reality TV star's baby shower ahead of the birth of her first child next month, has defended her close friend, who has been criticised for the amount of weight she has gained during her pregnancy.
During a Q&A session with fans on Cosmopolitan magazine's Twitter profile, a fan asked the 28-year-old TV presenter: ''Your girl Kim throughout out her pregnancy has been called fat, what do you think about that?'' to which Kelly replied: ''I think its deplorable to call any pregnant women fat!''
Kelly also offered some advice about how she stops her own critics from getting her down.
She wrote: ''People who say terrible things are usually saying what they think about themselves.''
Kelly previously slammed Christina Aguilera for her weight gain last year.
She said: ''Maybe she is just becoming the fat b***h she was born to be. I don't know. She was a **** to me. And she bought my house!
''She called me fat for so many f***ing years. So you know what? F**k you! You're fat too.''