Just how kinky is HBO planning to go with its television series adaptation of the film, "Westworld"?

Actors' union SAG-AFTRA wants to make its rules clear when it comes to the kinds of sexual acts HBO's "Westworld" extras were being asked to agree to on Tuesday before working on the series.

Here's what the agreement said extras may have to perform:

– "genital-to-genital touching"

– "oral sex with hand-to-genital touching"

– "contort to form a table-like shape while being fully nude"

– "pose on all fours while others who are fully nude ride on your back"

– "ride on someone's back while you are both fully nude."

– "other assorted acts the project may require"

SAG-AFTRA sent out a member alert with a reminder on its rules for consent under the above conditions:

The SAG-AFTRA Agreement provides that consent to appear in scenes requiring nudity or sex acts may be withdrawn at any time (consent may not be withdrawn as to scenes already shot).

In a statement to BI, HBO said that the casting agreement "was not requested, written or approved by" it and "Westworld's" producers. Read the full statement below:

The document that the background actors were given was created by an outside extras casting vendor. It was not requested, written or approved byHBO, Warner Bros. Television, or the producers, and contains situations that we do not require of any actor. We are rectifying immediately the discrepancies in this vendor’s document with our actual on-set practices, which provide a professional and comfortable working environment for all performers.

According to the pay network, the one-hour drama "is a dark odyssey about the dawn of artificial consciousness and the future of sin."

An adaptation of the 1973 sci-fi film of the same name, which was written and directed by Michael Crichton, the TV version of "Westworld" has some name writer/executive producers attached, including Jonathan Nolan ("Dark Knight") and J.J. Abrams ("Star Trek Into Darkness," "Lost").

It premieres in 2016 and stars Anthony Hopkins, Evan Rachel Wood, Ed Harris, James Marsden, Thandie Newton, and Jeffrey Wright.

See the sexually explicit agreement below: