Kim-Kardashian-on-OWN-460.jpg Leave it up to Oprah to ask all the tough questions!

During her sit down with the whole Kardashian clan for an interview on Oprah's Next Chapter, the talk show host asked the 31-year-old reality star if she credits her infamous sex tape for launching her career.

"Would you be where you are had there not been a sex tape?" she asks, to which Kardashian responds, "You know, I think that's how I was definitely introduced to the world. It was a negative way, so I felt like I really had to work ten times harder to get people to see the real me," she explained.

Adds her mother Kris Jenner: "No mother ever wants to hear something like that. I could tell she was in a lot of pain."

No subject was off-limits, with Kim discussing her failed 72-day marriage to NBA player Kris Humphries, her relationship with new boyfriend Kanye West, and the lessons she's learned living life in the spotlight.

We have to give it to Miss Kardashian - she's a PR pro!