It's not a porn movie. When i first heard about this movie i did some looking around to see what i could find and see if i could see any meantion of the feather tickling.
From what i gathered this movie is supposed to be a spoof of B movies, and apparently it's pretty good. I have yet to see a bad review of it. It's a movie that doesn't take itself seriously. They even have a counter in one of the corners of the screen counting down to the next shower scene.
As far as the feather go's, i think somebody else posted about how the charactor gets punished for something by having her feet, or from the looks of things, foot, tickled with a feather.