I've already posted one episode of this parody series, with Nathan Fillion (here), and here is another, very funny one.
Just to explain things up first, a movie writer James Gunn created with his brothers, Sean and Brian, a series of short episodes mocking the concept of porn movies, named PG Porn.
The tag line for this series is "For people who love everything about Porn... except the sex" and it describes famous and cliche situations often used in porn productions, but with different results. They even use real porn stars just to emphasize the humor of the outcome.
You can find the episodes and behind the scenes footage on the dedicated page at Spike.com