Jack Parker and the Rival's Rescue
Jack Parker and the Rival's Rescue is a comic written by leadengine and illustrated by pixie_punch. It ran in Artist Special 2 at http://s2b2.livejournal.com/221680.html, and is mirrored at http://www.shousetsubangbang.com/mirror/jack-parker-and-the-rivals-rescue/.
From fail-fandomanon.dreamwidth.org: "Short sepia-toned comic strip which is very NSFW. The cover implies they're Indiana Jones type adventurers in the 40s-50s, but the story is more like an epilogue to whatever the cover is about - like it's after the mission and our two heroes are finally resolving their UST."