I Think I Better Leave Right Now
http://www.fanfiction.net/s/1893799/1/I_th...leave_right_now
Chapter 9's lemon http://purrfectly679.tripod.com/09l.htm
Chapter 19 uncut http://purrfectly679.tripod.com/19.htm
It's on AFF.net, but only the first 15 chapters I believe, so I might as well post it where it's complete.
I have not read a more moving Naruto fic.