Kourtney Kardashian wants her family to stop swearing.

The socialite - who is in a relationship with Scott Disick - is concerned her seven-month-old son Mason will use curse words when he starts talking if her relatives don't learn to censor themselves around him.

She said: "As time goes on - and especially in my family where everyone has a mouth on them - people forget to censor what they say around Mason.

"Scott and my sister Khloe are the ones with the worst mouths on them. They both try not to curse in front of Mason, but trust me, they do.

"Sooner than I know it, Mason will start talking and understanding what we are all saying."

The 31-year-old beauty admitted that she took special care of what she exposed Mason to when he was born and hopes it isn't unrealistic to ask her family to follow her example.

She added in her blog for People.com: "When Mason was born, I was extra cautious about people cursing in front of him; I only played classical music around him, etc. . He's such an angelic innocent boy.

"Having a bad mouth is not a good quality regardless of whether or not you're around a baby, so it wouldn't be the worst thing for everyone to stop. But I also don't want to set unrealistic rules for everyone around me."