Style queen Sarah Jessica Parker has banned the word 'fat' at home because she doesn't want her son to ever use the term in a derogatory way.

The former SEX AND THE CITY star hopes her son JAMES WILKE will never poke fun at people's size.

She says, "I've forbidden the word 'fat' to be used in our home because I don't like the way it's used and I don't want him to ever use that word."