cannes france photocall on the road Kirsten Dunst  Kristen Stewart Spread Pictures

Kristen Stewart sure knows how to raise eyebrows on the red carpet.

The Twilight star posed with Kirsten Dunst at the Cannes Film Festival to promote their upcoming movie On The Road ... but why the heck is KStew holding on to her co-star's tummy?! It's not like Ms. Dunst has a bun in the oven. Awkward.

Actors Garrett Hedlund, Sam Riley and Viggo Mortensen are starring alongside the two ladies in the movie based on the famous Jack Kerouac book.

See the entire cast in our gallery below.