Paris Hilton and Doug Reinhardt's PDA party took an X-rated turn on Thursday night.

The pair have been puckering up for the cameras all over the Cannes Film Festival this past week but their constant face sucking has been restrained compared with their latest display.

Paris straddled her man and gave him a lapdance during her party at the VIP Room club - while clutching a camera to record the magical moment for posterity.

The heiress was apparently so eager to see what she looks like with her tongue down her man's throat that she immediately uploaded her snaps onto her laptop to view them.

Paris' lucky Twitter followers got a preview showing of the gruesome twosome in action.

She uploaded a pic of her and Doug together with the caption, "Having the best time with the Sexiest Man on Earth! Loves it! :) Huge!!!!!!"

Worryingly, Paris was last seen in the early hours of Friday morning complaining that she had lost her Blackberry. Is the world ready for more Paris in night vision?