SAN FRANCISCO — Gay adult studio AMG Brasil is inviting fans to submit their most fevered erotic dreams to “My XXX Fantasy,” a promotional contest whose winning entry will be enacted in an upcoming AMG Brasil film shoot. The contest is keyed to the studio’s upcoming release “Rio,” currently in post-production.

AMG Brasil will accept entries for just one week: Monday, October 6 through Monday, October 13. Submissions should be emailed to MyXXXfantasy@athleticmodelguild.com.

Submissions should include the first and last name of the entrant, a working email address and valid mailing address. A winner will be announced by the end of the month.

“Entries will be judged on relate-ability, legibility — meaning, does it make sense? — and applicability, meaning can we pull off the fantasy,” said Athletic Model Guild promotions manager Christopher Trout.

As well, “reproduction of the winning fantasy will be open to the director’s interpretation.”

Conceived by AMG president Dennis Bell, the “My XXX Fantasy” contest commemorates “Rio,” a film he said is “one of my greatest accomplishments.”

The winning fantasy will play out as one of the erotic vignettes in “Surubua: Duro,” which will go before the cameras later this year — “duro” being Portugese for “hard.”

Additional first-place prizes include “a video shout-out to the winner from the cast of ‘Suruba: Duro’ and an RCA Small Wonder digital camcorder, as well as copies of “Rio” and “Duro.”

Second- and third-place winners will receive a copy of “Rio” as well as last year’s critically acclaimed two-parter “Amazonia: Capture” and “Amazonia: Release.”

“Rio” will be the 16th release since AMG Brasil was founded in 2006, joining AMG Classics — remastered rereleases of late studio founder Bob Mizer’s original work — and the Athletic Model Guild, a modern hardcore line that carries on in the Mizer tradition.

AMG Brasil is distributed by Paladin Video.