Holyfuck. I tend to avoid Weasley slash in general. I'm not sure exactly why that is, and this fic just shows what I'm missing.
Jesus, this was all kinds of hot. I love the semi-public sex/exhibitionism. And I loved that Charlie thought he'd done some great wrong, when Harry wanted it, too. I love that set-up. And the dirty talk? Nnnngggh. And I love, again, that Harry was the one who wanted intercourse.
I love how the dragons respond to the lubrication spell. :D