Robert and Kristen Get Gross

Robert Pattinson and Kristen Stewart shared a big, nasty kiss Rio de Janeiro this weekend. But thankfully it was scripted (and I mean that in the most literal sense). It was a scene out of one of the new "Twilight" movies.

It was all for a honeymoon scene in the upcoming "Twilight" movie "Breaking Dawn." ... and I know that isn't a spoiler because every single person who is going to watch the movie is a tween or mom who has already memorized the books.

11.08.10 at 12:00:00 AM