This bit is very interesting... these are photos of stunt rehearsals at the Swan house and I agree with OLTV/Newsflic these are possibly in preparation of the scene where Emmett and Jasper pick up Edward for the Bachelor Party. More pics a OLTV/Newsflic
Oh and I love this scene, shirtless Edward in bed with Bella. Woot! (Breaking Dawn. Chapter 2 Long Night page 25. Edward's shirt was on the floor...)
I pictured Nahuel to be younger but I'll put my trust to movie magic.
And Twilight Confirmed: JD Pardo has been cast as Nahuel in THE TWILIGHT SAGA: BREAKING DAWN