I do love reading HG soulbond fics.
I've read through much, though admittedly not all, of duksbrymin's list of H/G soulbond fics:
http://dukebrymin.livejournal.com/43809.html One thing that gets me, though, is that most of the bonds I can remember seem to form early: on first meeting or when Harry rescues Ginny from the Chamber.
To anybody's knowledge, are there any adult-onset bonds? Of course, Birds of a Feather (also by dukebrymin) has a bond that begins in Goblet of Fire, are there any other ones that have the bond begin later than COS?
Of course, anyone in need of a prompt may consider this to be one. :)