Gee. Sometimes you have to ask what could the person be seriously thinking?
So here's a thought... We know some actors can put a lot of effort into being in character and even paid extra to do certain things on film. Is this a behind the scenes footage for a guy starring as title role in a porn flick: "Crouching pussy, hidden dragon"?
(I jest, but in case rule 34 proves true yet again - maybe it's a case of "No pain, no gain". Hope it was worth the pain!
)