Paris Hilton makes out with boyfriend on red carpet -- in a majorly cleavage-baring ensemble

Paris Hilton has officially arrived in France -- and she brought with her some very public French kissing!

The heiress, never one to shy away from attention, stole the show at two Cannes Film Festival events alongside beau Chris Zylka. At a L'Oreal Paris gala, the two happily packed on the PDA for the paparazzi, making out on the red carpet as cameras flashed. Hilton even popped her leg back "Princess Diaries"-style as they giggled together.

Hilton donned a gothic-inspired ensemble: Her cleavage-baring black lace gown was adorned with rose appliques, and a sky-high slit showed off coordinating tall boots. And just one night earlier, Hilton wore a totally different sexed-up black gown! She attended the de Grisogono 'Love On The Rocks' party in a shimmering black ensemble with nude mesh cutouts.

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Paris Hilton in black at 2017 Cannes Film Festival
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Paris Hilton in black at 2017 Cannes Film Festival
CANNES, FRANCE - MAY 24: Paris Hilton attends the Gala 20th Birthday Of L'Oreal In Cannes during the 70th annual Cannes Film Festival at Hotel Martinez on May 24, 2017 in Cannes, France. (Photo by Antonio de Moraes Barros Filho/FilmMagic)
CANNES, FRANCE - MAY 24: Paris Hilton and Chris Zylka attend the Gala 20th Birthday Of L'Oreal In Cannes during the 70th annual Cannes Film Festival at Hotel Martinez on May 24, 2017 in Cannes, France. (Photo by Antonio de Moraes Barros Filho/FilmMagic)
CANNES, FRANCE - MAY 24: Paris Hilton attends Gala 20th Birthday of L'Oreal In Cannes during the 70th annual Cannes Film Festival at Martinez Hotel on May 24, 2017 in Cannes, France. (Photo by Mike Marsland/Mike Marsland/WireImage)
CANNES, FRANCE - MAY 24: Paris Hilton and Chris Zylka attend the Gala 20th Birthday Of L'Oreal In Cannes during the 70th annual Cannes Film Festival at Hotel Martinez on May 24, 2017 in Cannes, France. (Photo by Antonio de Moraes Barros Filho/FilmMagic)
CANNES, FRANCE - MAY 24: Paris Hilton and Chris Zylka attend the Gala 20th Birthday Of L'Oreal In Cannes during the 70th annual Cannes Film Festival at Hotel Martinez on May 24, 2017 in Cannes, France. (Photo by Antonio de Moraes Barros Filho/FilmMagic)
CANNES, FRANCE - MAY 24: Paris Hilton attends the Gala 20th Birthday Of L'Oreal In Cannes during the 70th annual Cannes Film Festival at Martinez Hotel on May 24, 2017 in Cannes, France. (Photo by Pascal Le Segretain/Getty Images)
CANNES, FRANCE - MAY 24: Paris Hilton attends Gala 20th Birthday of L'Oreal In Cannes during the 70th annual Cannes Film Festival at Martinez Hotel on May 24, 2017 in Cannes, France. (Photo by Mike Marsland/Mike Marsland/WireImage)
CANNES, FRANCE - MAY 24: Paris Hilton (L) and Chris Zylka attend the L'Oreal Paris Cinema Club party, celebrating L'Oreal's 20th anniversary as the official beauty partner of the Cannes Film Festival, at the Martinez Hotel Beach on May 24, 2017 in Cannes, France. (Photo by David M Benett/Dave Benett/Getty Images)
CAP D'ANTIBES, FRANCE - MAY 23: Paris Hilton attends the de Grisogono 'Love On The Rocks' party during the 70th annual Cannes Film Festival at Hotel du Cap-Eden-Roc on May 23, 2017 in Cap d'Antibes, France. (Photo by David M Benett/Dave Benett/Getty Images )
CAP D'ANTIBES, FRANCE - MAY 23: Paris Hilton attends the de Grisogono 'Love On The Rocks' party during the 70th annual Cannes Film Festival at Hotel du Cap-Eden-Roc on May 23, 2017 in Cap d'Antibes, France. (Photo by David M Benett/Dave Benett/Getty Images )
CAP D'ANTIBES, FRANCE - MAY 23: Paris Hilton attends the de Grisogono 'Love On The Rocks' party during the 70th annual Cannes Film Festival at Hotel du Cap-Eden-Roc on May 23, 2017 in Cap d'Antibes, France. (Photo by David M Benett/Dave Benett/Getty Images )
CAP D'ANTIBES, FRANCE - MAY 23: Paris Hilton (L) and Chris Zylka attend the de Grisogono 'Love On The Rocks' party during the 70th annual Cannes Film Festival at Hotel du Cap-Eden-Roc on May 23, 2017 in Cap d'Antibes, France. (Photo by David M Benett/Dave Benett/Getty Images )
CAP D'ANTIBES, FRANCE - MAY 23: Paris Hilton (L) and Pamela Anderson attend the de Grisogono 'Love On The Rocks' party during the 70th annual Cannes Film Festival at Hotel du Cap-Eden-Roc on May 23, 2017 in Cap d'Antibes, France. (Photo by David M Benett/Dave Benett/Getty Images )
CAP D'ANTIBES, FRANCE - MAY 23: Paris Hilton attends the de Grisogono 'Love On The Rocks' party during the 70th annual Cannes Film Festival at Hotel du Cap-Eden-Roc on May 23, 2017 in Cap d'Antibes, France. (Photo by David M Benett/Dave Benett/Getty Images )
CANNES, FRANCE - MAY 24: Paris Hilton attends the Gala 20th Birthday Of L'Oreal In Cannes during the 70th annual Cannes Film Festival at Hotel Martinez on May 24, 2017 in Cannes, France. (Photo by Antonio de Moraes Barros Filho/FilmMagic)
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Zylka, who stars in HBO's "The Leftovers," has been at Hilton's side since they arrived in France. He and Hilton began dating around January, and both are completely smitten: "I found my soulmate, my better half," he told Extra earlier this year. "I get to wake up next to the person that I love more than anything, every single day and fall asleep with them every single night, so it's a constant smile on my face. I couldn't ask for anything more."

For her part, Hilton has hinted in interviews that she'd like to see an engagement, wedding and -- really! -- babies down the road. ''It's like the meaning of life to have your own family. And I'm happy that I waited to find the right person," she told ES Magazine in April. "I'm so in love. He's the man of my life."

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