With this fourth poster promoting True Blood's third season, HBO moves away from blood-filled vessels and vampires we'd like to do bad things with and toward ... classic natural-history books. And the varied forms of a bar owner/shapeshifter Sam Merlotte, of course.

But you're here for the porn parody, aren't you? Right.

It's Tru: A XXX Parody, from the studio that brought you The Big Lebowski: A XXX Parody, 30 Rock: A XXX Parody and Who's the Boss -- well, you get the picture. Judging from the totally safe-for-work trailer below, it's not all that different from the series, except for the really bad blond wig on "Eric," and that the parody "Tara" is a lot less annoying than the one from the actual show.

The new season of True Blood debuts on June 13. I have no idea when Tru is released.

(trailer via The Daily What)