Nathan Kress?? or Not??

The first three pictures are Legit, Officially Nathan Kress. Now, the fourth one is supposedly Nathan, but until now, no shirtless or even semi-shirtless pics of Nathan have surfaced on the internet, not even when he has been on Cruises. The face is a little off too, so I am honestly NOT sure... Take a look and Tell me what you think!

So is this shirtless kid Nathan?? or a look-alike??? Post Opinions Below!!