Ok, I do feel that this has the makings of a good hhr fic. However, I got a couple of uncomfortable,rather unlikeable feel about a couple of things about it--HR and R married (it certainly puts a dead end ringer on that part, any diversion is cheating, and its kinda difficult to see HR cheating on someone she loves enough to marry..)
and second--george and fred setting up a non-magical store?--kinda OOC to me...these two are the least likely to delve into anything muggle-related things or non-magical...
Other than that, I like the way things are turning out for our ship...their reluctant foray into the forbidden...thats wicked! ;-)
I hope you could upload soon on the next chapter.