Paris Hilton rocks sexy Cleo costume at the amfAR party

Paris Hilton rocks sexy Cleo costume at the amfAR party

The Hilton sisters looked far from spooky as they celebrated Halloween early on Saturday night.

Paris donned a sexy Cleopatra costume, while Nicky showed off her baby bump in a tight leopard-print dress, as they attended the amfAR Fabulous Fund Fair together.

The elder sibling looked resplendent in a very revealing baby blue skirt and bikini top combo.

The gorgeous gold detailing ran through the cuff, armbands earrings and headpiece, and around the waistband perched high on her hips.

The double split in the skirt ran right up to said waist, revealing a stunning set of pins perched in lofty silver and gold heels.

Pregnant Nicky, 34, opted for an all feline ensemble, her tiny tight dress showcasing her own sculpted arms and legs.

She finished in a pair of long black gloves, and a mesh cat face mask.

With Paris playing the Egyptian queen, her boyfriend Chris Zylka of course arrived as her famous lover, Mark Anthony. 

The 32-year-old clad himself in Roman armour, rocking a crimson cloak and pteruges as he accompanied his squeeze.

Paris uploaded a number of fun Snapchats from the charity gig, which showed guests grabbing tokens in a fan booth, and even driving mini bumper cars.

Nicky is expecting her second child with husband James Rothschild early in the New Year.

They already share a one-year-old daughter, Lily Grace.