According to the Daily Star, the two Twilight stars were caught 'getting down and dirty' on Rio De Janeiro's Ipanema Beach where they are filming the next instalment of the vampire saga.
A source told the newspaper, 'The young lovers were getting sexy like any other couple would on the beach at night, but police sent them packing with a stern verbal slapping.
'It's obviously hard for them to go anywhere alone. I think they were just trying to grab some romantic time, but unfortunately for them they attracted attention almost immediately.
'The police said they were more concerned about Robert and Kristen causing a security alert than them getting hot and heavy.
'They were laughing about it afterwards, but they both looked really embarrassed. It was quite sweet to see.'