"Playing Pretend" by kliqzangel
SUMMARY: Greg can't stand to watch Nick suffer any longer and decides to take action. Set after Season 6.
Has just been added to CSI Slash and is listed on the new stories page and the Nick/Greg Stories - K authors page of the Nick/Greg page.
Crossposted to Chance's Archive, Chance's Archive on Tumblr and Chance's Archive blog.