Kristin Cavallari shot down John Mayer. John claimed the two had been dating, but Kristin says otherwise. Kristin says almost the exact opposite thing to what John says….interesting. Is the truth in the middle?

More pictures of Kristin after the laugh….

Kristin has had her share of men, but John Mayer? He gets around. From the LA Times:

“The Hills” star Kristin Cavallari confesses that singer stud John Mayer actually did ask her out. Aha! We knew it.

But she says turned him down because she “didn’t want to be another notch on his belt.”

When a reality TV starlet disses a big name singer-slash-ladies-man like John, that’s totally harsh.

But can you blame her for not wanting to end up on Mayer’s conquest list, among Jessica Simpson, Jennifer Aniston, Cameron Diaz, Jennifer Love Hewitt, Vanessa Carlton and Minka Kelly?

Well, John didn’t tweet, or blog about her dissing him! And who knew John had so many high profile girlfriends. It’s a reminder of why to stay away from him! You go Kristin!

Photos: Fame