Robert Pattinson is opening up about his highly anticipated sex scenes with real-life girlfriend Kristen Stewart in the new Twilight flick -- Breaking Dawn.

RPatzEWCover.jpgThe movies have sometimes pulled lines of dialogue directly from the books, and Rob was hoping that would be the case for the scene where Edward and Bella consummate their marriage. He tells EW:

    "I wanted to have it as a line so much: 'I bit through all the pillows. Every. Single. One.'"

The 25-year-old jokester goes on -- explaining what his vision would be for the scene.

    "And then he'd start crying. ... that's what he should be ashamed of in the morning. All those beautiful pillows! Egyptian cotton! I ruined this bed!"

We love when the usually awkward Rob has a laugh!