Triune is a story written by Domashita Romero and illustrated by cerine. It ran in Issue 39 at http://s2b2.livejournal.com/226406.html, and is mirrored at http://www.shousetsubangbang.com/mirror/triune/.
From eccentric-nucleus.tumblr.com: "in which a dashing rogue is seduced by a stalwart knight errant at ye olde ren faire."
From pinboard.in: "The noble but unemployed Sir William defends the honour of skinny hipster Dash."
Sir William of Banbury Crossing meets the roguish Dash.
LOL no, just read it. It's pretty funny. The juxtaposition is actually great.