The dirty sex kitten and former Miss Nevada USA Katie Rees has been arrested for allegedly assaulting a police officer in Las Vegas Tuesday night!

Katie Rees, who was dethroned as Miss Nevada USA for extremely salacious and dirty photos with her 'girl-friends', has been arrested for assault. (Who would have seen that one coming? Wild party girl assaulting a police officer? Nooo!!)

Our pals at TMZ scoop: Rees was pulled over Tuesday night for a traffic violation. When police attempted to arrest her, she began to elbow and kick them. Cops tell us they were just going to cite Rees but when she went nuclear, they took her in. FOX5 in Las Vegas broke the story.

Check out the salacious photos (Nude breasts and dry oral sex) of Katie Rees with her wild girl-friends (and impressed guy-friends) here!  (Must be 18 or older!)