Okay, I have a few...
Court of Souls: http://www.fanfiction.net/s/1222780/1/ (says PG, but I'd say PG-13, general: methinks SoKai, but is more adventurish, so they don't interact much)
Build Me a Castle: http://www.fanfiction.net/s/2021433/1/ (PG-13, Romance/Angst: SoKai)
Anything by this...