It's not her. This sex scene gets posted every week on every porn site. Go to Google and type in "jessica alba sleeping dictionary body double" for proof. To this day, she has not posed nude in ANY movie. Also, before some know it all comes in and yells "She was naked in Machete!!!", go to google and look it up. It was CGI nudity. She was standing in a bathing suit and in post, they made her "naked."