Of all the strange mysterious mysteries of the porn world, perhaps the oddest of all is the porno plot. Fundamentally, porn exists so that we can watch two (or more!) people doing it--so why do we need some crazy set up to help us get in the mood? We may never have an answer to that question, but at least we can laugh at this this gallery of porno opening shots. Though we have to say, that rollerskating accident porno looks really compelling. (guardian.co.uk, via Violet Blue)