From WENN.com

Kim Kardashian's pregnant sister is reportedly planning a big wedding in Mexico to Disick, the father of her son Mason, but she opened up about her fears of marriage in a U.S. TV chat with Oprah Winfrey on Sunday (17Jun12).

Kourtney admits watching her mother Jenner's relationship with her father Robert Kardashian fall apart due to infidelity had a big effect on her - and she doesn't want her own kids to go through the same.

She says, ""I try to put myself in her shoes, and I would never do that to my family. I'm kind of scared of marriage because of that.""

Kim adds, ""We knew it was my mom's fault and we were really well aware.""