Paris & Nicky Hilton: Party Sisters in Saint Tropez

Posted Saturday July 28, 2012 9:46 PM GMT

Enjoying their tropical vacation together, Paris and Nicky Hilton were seen living it up in the warm Saint Tropez, France weather on Saturday (July 28).

The Hilton hotel heiress' looked ready for a day in the sun as the 31-year-old socialite sported a sheer maxi dress and floppy sun hat while her 28-year-old sis opted for a short floral print dress and sunglasses. Later in the afternoon, Paris stripped down into a sexy, black monokini to catch some rays.

While spending time in the hot destination, both girls have been seen hitting up the partying scene together with a group of close friends. Just earlier today , the blonde bombshell tweeted about her exciting night at Club 55 sharing, "Incredible time last night at the Flower Power Party with @NickyHilton @Whittles2 @Hotforwords. Then danced the night away at Les Caves Roy!"

Aside from the usual night scene, the siblings spent their day aboard a luxury yacht to soak in some gorgeous rays.