LINDSAY Lohan is playing with fire. She’s now decided to be best buds with her former nemesis Paris Hilton, and the two even had a sleepover in Las Vegas this weekend.

On Saturday night, the terrible twosome arrived arm-in-arm to Michelle Trachtenberg’s 21st birthday party at Tao and spent the night signing autographs for fans and whispering to each other. Then the ditzy duo retired to the $25,000-a- night Sky Villa at the Palms - for a pillow fight, no doubt.