Robert Pattinson and Kristen Stewart had sex for 12 hours

According to a new report, the hunky British actor and his costar Kristen Stewart took a whopping TWELVE hours to shoot their Breaking Dawn sex scene!

America’s Life & Style magazine says the duo recently shot a sex scene that took them half a day to complete.

The scene shows Pattinon’s vampire character Edward biting into a pillow in order to control his urge to bite Bella. We’re surprised it took them so long to film.. it can’t be the first time R-Patz has bitten a pillow while making love!

Rob, 24, recently admitted he gets “really carried away” when he has to kiss 20-year-old Kristen.

“When we start the kissing scenes I forget we’re surrounded by a load of people. I actually end up getting really carried away,” he said.

“It’s only when the kiss is finished that my mind registers there’s actually a set full of people around, and I just walk away embarrassed.

“By the time you guys see the nude scenes it looks really erotic because it’s been edited and you’ll have music. What you don’t see is the eight camera men, the director and about 50 people on set.”

“The truth is you come out of your dressing room in a little robe and know that in a few minutes, you’re going to be taking it off in front of a lot of people.”