The Beast with Two Backs
Released with Rising Son 6 in August 2008, this four page comic was penned by Eric Kripke with Peter Johnston. It stars the Ghostfacers and humorously pokes fun at the comics and the show, as well as Jared and Jensen.
The title is a reference to the phrase, "to make the beast with two backs" which is a slang term for having sex, most famously used in Shakespeare's Othello and Ulysses by James Joyce.
Make of that what you will - or refer to Real Person Slash