As Internet Rule 34 states, "pornography or sexually related material exists for any conceivable subject," and this week we finally found This Isn't Christmas Vacation: The XXX Parody, released last year, just in time for the holiday season. It wasn't until we were working on a porn parodies piece for Art Attack that we found this.

With Christmas coming -- sigh -- in hot these next few days, it may be hard -- seriously? -- to get a copy of This Isn't Christmas Vacation in your hands -- OK, STOP -- in time to watch this feature with a roaring fire and a decorated tree next to you, but you can stream it online for a price, like with most all porn now, Grandpa.

Here's a brief description of the film from Web site Adult DVD Empire:

"This year the Grizwalds are gonna celebrate Christmas like never before. With more presents, more lights and more sex than ever. Crazy cousin Eddy parks his bedroom on wheels in the front of the house and proceeds to have sex for all the neighbors to see. Rusty finally....quickly learns where to stick his yule log. Audrey spreads some cheer for the boy down the street. And when Elen gets caught with her new purple vibrator, Clark shows her a toy of his own. 'Tis the season to be Horny!!"

We capitalize horny now? Cool.

The original National Lampoon's Christmas Vacation is obviously one of the most beloved holiday movies ever, with the tale of Clark Griswold's familial misadventures proving almost universal. We all have redneck relatives who empty their RV shitters into sewers, and old people are old and stupid, and sometimes Horny!!

This feature comes from Devil's Films, who are responsible for such other porn parodies as This Isn't Twilight - The XXX Parody, Jon & Kate Fuck Eight, and This Isn't The Biggest Loser The XXX Parody.