Blood will Flow

I had this idea in mind for spn_heatwave, and had got as far as an outline sketch, but totally failed to meet the deadline. But I was procrastinating over doing other things today and ended up finishing this instead. The idea came from a prompt by madebyme_x which asked for getting caught in a summer storm with rain and lightning.

So happy summer, folks!
Teaser

Main pic - probably NSFW as they only have budgie smugglers on.