Producers decided to shoot extra sex scenes to supplement an earlier shoot in Brazil.
Stewart and Pattinson were booked into the Ritz Carlton in St. Thomas, in a suite that reportedly cost around $500 a night.
In the shoot, which took place at night on Apr. 22, Kristen wore a neon-green bikini that barely clung to her body, while Rob went shirtless and also fully dressed.
Check out Rob and Kristen’s photos;
Click to enlarge.
“They were kissing and pawing at each other like they couldn’t resist,” one onlooker told US magazine.
“She wrapped her legs around him as they kissed,” another observer says.
Following the shoot, Rob and Kristen reportedly had a private dinner at the Ritz-Carlton’s Bleuwater eatery.
Otherwise, they stayed in “playing with their new puppy, watching TV and listening to music,” one pal told US.
Their off-screen romance has been widely rumored almost since the start of filming on the original “Twilight” movie.
But as shooting on the series winds down, Rob and Kristen have become more open about their relationship.