Britney Spears is not only copying Paris Hilton's partying ways — she appears to be following her skin-baring shenanigans, nearly falling out of her flimsy top.

Spears and Hilton were snapped on their third night out in a row in Los Angeles, drinking and dancing with a bunch of sex-crazed guys — and then swapping one sexy stocking with each other.

Ever since Spears, 24, dumped her husband — rapper wannabe and father of her children Kevin Federline — she has latched on to her new best friend and they've been cruising the clubs of Hollywood.

She also dropped her public relations rep, Leslie Sloane Zelnik, and hasn't been able to find a new one willing to try to rein her in, the New York Post's Page Six column reported last week.

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