Nailing Your Wife (with Nathan Fillion & Aria Giovanni)
OK… not suitable for work, though not porn… it’s a spoof with a somewhat predictable, but gruesome ending. It stars Nathan Fillion (from Firefly, Serenity, Buffy the Vampire Slayer, Drive, Dr Horrible’s Sing-a-long Blog, Desperate Housewives, etc) and Aria Giovanni (from porn). It was directed by James Gunn (from directory-type things, I imagine).
“Nailing Your Wife” (PG Porn) by James Gunn
with Nathan Fillion & Aria Giovanni
(there might be a advertisement that plays ahead of the movie)
Update (12/19): There’s another one called “Peanus” (a take on Peanuts) with Belladonna: