Here are some Harry/Molly fics that I know of :
A Mothers Love http://hp.adult-fanfiction.org/story.php?no=600016189
Mollys Love http://www.hpfanficarchive.com/stories/viewstory.php?sid=258
http://www.hpfanficarchive.com/stories/vie...9&chapter=1
Keeping in Family 1 on AFF
Practice on AFF