Kim Kardashian Talks Divorce on 'Late Show': 'I Want Us to Move On' (Video)

Kourtney Kim Take Miami - P 2012

Kourtney Kim Take Miami - P 2012

Reality TV star Kim Kardashian opened up her ongoing divorce from Kris Humphries when she and her sister Kourtney Kardashian taped an appearance for Wednesday's Late Show With David Letterman.

Kardashian is currently dating rapper Kanye West and is pregnant with their first child, due in July. But she's still legally married to the NBA player, who is seeking an annulment, claiming fraud.

PHOTOS: Inside Kardashian Inc.

When asked about the divorce, Kardashian told Letterman: “The only legal way to get an annulment is if fraud were involved, so that’s what tricky. So he is suing me for an annulment based on the fact that I frauded him into marrying him for publicity.”

Kardashian said that in her case, fraud was not a factor. 

Chimed in Kourtney: “But I think if she was going to do it for publicity, she’d pick someone that people knew.”

Kim added that she has "been trying for almost two years now, um, to wrap it up, but it's, you know, it's hard." She said she also wants Humphries "to be happy and I want us to move on, and that’s really what I want, is just to move on.”

STORY: Kim Kardashian Talks Pregnancy, Kris Humphries Divorce on 'Today'

Kardashian’s August 2011 wedding aired on E! Entertainment Television in a special titled Kim’s Fairytale Wedding: A Kardashian Event. She filed for divorce 72 days later after the ceremony.

The Kardashian sisters are making the talk show rounds to promote the new season of E!'s Kourtney & Kim Take Miami, which premieres at 9 p.m. Sunday.

Late Show airs at 11:35 weeknights on CBS.