Now, I'm as hetero as the next guy, but comparing Naruto to the last time he was shirtless(I dunno, during the Chuunin exam when he was catching fish?), he's actually got some muscle definition now. I'm sure some fangirl out there is prepared to write some crazy Kakashi/Naruto/Yamato yaoi piece just based on having a bunch of sweaty shirtless Naruto's splashing around in the water from this chapter. Seriously, that guy's turning into a hunk of beefcake, by gawd...
...ahem. Yeah, as hetero as the next guy.
But seriously...he's no scrawny runt anymore. Now, if only Sasuke wasn't the Barry Bonds of the Narutoverse...