Wheeeee! This was amazing and fantastic, and I don't know how to describe. I think subtle and very much "in there" at the same time.
Awkward first times is something of a kink of mine. I search for those fics to read, and Ron/Harry is always so good for it, too! Add to it the fact that neither of them really had an opportunity for learning how to be open and talk about this sort of thing. They get so embarrassed...
I also have to say that I love your choice in story progression. How you break it up, and how you have it structured. It just makes it super-easy to read and helps the flow!
As Torino sometimes says "A fic you read one-handed." hee