There was something about the curve of his neck that belonged right here, in Sirius’ bathroom where no one else would ever see it.
That has to be one of my favorite lines ever. It's just so right.

I also love that when Sirius finally kisses him again it isn't because Remus is being seductive. Instead they're just smiling in that way that two people who know each other well smile at each other. Yes. I like that part.

And the very last bit is priceless.

Also:He’d been brooding while Remus had a shitty day. *snorts* Pun intended?