Paris Hilton brandon davis dress blonde river viiperi cannes france Spread Pictures

Paris Hilton and River Viiperi attended a private yacht party in Cannes on Monday night, and the heiress looked smokin' hot in a low cut leopard-print dress. And her model beau looked pretty dapper too ... such a beautiful couple!

Paris and River recently celebrated their one-year anniversary, and last week at the Gotha Club in Cannes, patrons reported that the lovebirds couldn't keep their hands off of each other as they danced the night away.

On May 18 River tweeted a pic of his lady love and wrote, "Happy one-year anniversary to the gorgeous, beautiful, perfect, most amazing and most caring girl on this planet," and referred to Hilton as "my girlfriend, my future wife, my life." Awww!

Earlier this month Paris told Wendy Williams that she was hoping to settle down and start a family with Viiperi. "I think that's the meaning of life to have children and have a family one day," she said. "I am so in love. I feel so lucky to have met him. He's one of the kindest, most loyal men I've ever met in my entire life, and he treats me like a princess."