RAW: Robert Pattinson and Kristen Stewart share steamy on set kiss

Rob Pattinson and Kristen Stewart cannot keep their hands off each other even when the cameras aren't rolling as they shoot a Twilight film. The pair took part in a long and tricky night shoot of a street party scene for Breaking Dawn in Rio de Janeiro, but despite going into the early hours of the morning with numerous takes they were clearly enjoying each other's company, joking and tenderly holding hands even when taking directions from the senior crew. The scene sees them walking through the crowd before sharing a passionate kiss. Kristen's character Bella has an engagement ring visible on her finger.