[There are parts to this sentence that don't make sense to Naruto and the confusion is evident on his face. That he doesn't consider himself shy is chief among them.]
You're not supposed to wear clothes in a hot spring. [This is obvious? Or at least, he presumed it was obvious, and given the people he'd been sitting with he'd been in good company.] And I'm not naked right now I'm wearing the dirty towel.
[That part is an unhappy scowl. He's going to have to go wash himself before he gets back in now and there's Bolin, refusing to acknowledge that he just took one for the team because he's too concerned about a towel's history while he's bleeding out.]
no subject
You're not supposed to wear clothes in a hot spring. [This is obvious? Or at least, he presumed it was obvious, and given the people he'd been sitting with he'd been in good company.] And I'm not naked right now I'm wearing the dirty towel.
[That part is an unhappy scowl. He's going to have to go wash himself before he gets back in now and there's Bolin, refusing to acknowledge that he just took one for the team because he's too concerned about a towel's history while he's bleeding out.]