Robert Pattinson & Kristen Stewarts' PDA-filled date at Cannes Film Festival [VIDEO]

Angelina Jolie and Brad Pitt might have just lost the top spot for the hottest couple in Hollywood. During the 2012 Cannes Film Festival, "Twilight's'" power couple Robert Pattinson and Kristen Stewart were burning up the red carpet and filling up on the PDA. What else went down for the famous "Robsten" couple?

Kristen and Robert have a knack at keeping the tiniest detail about their relationship private. The smallest hints and slip of the tongue moments causes fan frenzy unlike any other. Now, it looks as if Robert and Kristen are taking up a notch on the PDA level which fans should be thankful for.

Despite having arrived separately at the 2012 Cannes Film Festival for the premiere of "On the Road", Robert and Kristen met up at the after-party where things heated up - literally. It looks as if these two couldn't help themselves to a little bit of PDA at the South of France. Not only were Robert and Kristen spotted making out at the balcony but Robert made sure he had his hands on Stewart the entire night.

"This gesture is typically done when standing to the side of a woman when in the presence of others as a show of ownership, [saying] 'she is with me,'" explained Patti Wood, body language expert, to Hollywood Life.

"They just looked really happy," shared the insider to Celebuzz. "They hung out with friends, like Sam Riley, but it seemed like Rob and Kristen were in their own little world. It looked like they spent the entire night laughing! You could tell that they were in great spirits, and Rob couldn't have looked more proud."

Giggling, cuddling and kissing went on high that night making Robert and Kristen appear as if two teenage kids deeply addicted to each other. The PDA-filled night was surely enough to keep "Twi"-hard fans busy while they patiently wait for more onscreen action in Robert and Kristen's upcoming flick, "Twilight Saga: Breaking Dawn Part 2".

Take a look at the video below courtesy of Juicy Bits which shows all the juicy details on Kristen and Robert's' big smooch at the 2012 Cannes Film Festival.