On The Late Show with David Letterman Wednesday night, the interrogating host dug into Kim Kardashian about her lack of a divorce certificate.

Technically, Kim is still married to ex Kris Humphries even though the pair split over a year ago, only 72 days after marrying. So, when Kim appeared on the show with her sister Kourtney Kardashian to promote Kourtney and Kim Take Miami, the late night host couldn't resist questioning her about it. "When are you going to wrap that up?" David Letterman asked the reality TV star.

"Well, I've been trying, and it's a process," Kim replied. "I just want him to be happy and I just want us to move on." One of the delays, Kim went on to explain, is that Humphries is suing her for an annulment based on grounds of fraud. He claims that Kim married him for the sake of publicity, not love. Kourtney was quick to jump to her sister's defense with a none-too-subtle dig at the NBA player.

"But I think if she was going to do it for publicity, she'd pick someone that people knew," Kourtney told Letterman. And then, the world asked, Kanye? Kim and Kanye West are not only dating now, but have a baby on the way, which is due in July, the same month as Prince William and Kate Middleton's. There's already a bidding war for the first photos of the kid of "Kimye." As of yet, the pair hasn't taken a publication up on their offer.

Watch the full clip of Kim K. on David Letterman below:

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