Fourteen D.C. jurors watched with raised eyebrows, tight smiles and furrowed brows as federal prosecutors played a 15-minute scene from a pornographic movie during the opening day of an obscenity trial against adult entertainment industry mogul John Stagliano.

The eight women and six men are being asked to determine whether two of Stagliano's movies, including "Milk Nymphos," and a trailer for a third movie, "Fetish Fantastic 5," violate the District's community standards.

Department of Justice trial attorney Bonnie Hannan told the jury that the trial was about "crossing the line," and these movies go beyond the soft-core porn that can be seen on late-night TV.

Defense attorneys argued that the none of the scenes contained illegal sexual acts, violence or forced sex, and the movies were performed by consenting adults, professional "sexual athletes" whose business it was is to perform in movies like this for adults to watch in private.

"If you watch closely," Stagliano attorney H. Louis Sirkin told the jurors before the movies were showed, "it appears that all of the participants are having a good time."

U.S. District Judge Richard Leon ordered that anybody under the age of 18 had to leave the courtroom. Jurors and two journalists were given headphones.

Members of the gallery could see the video, but the sound was turned off to preserve the dignity of the proceedings, Leon said.

Two TV screens showed a segment from "Milk Nymphos." The scene opened with a milkman delivering bottles of milk to two blond beauties, and progressed into sex and scatological play.

For the most part, the jury of 11 blacks and three whites remained stoic. But members of the gallery giggled as the sound of moans, screams and a squeaky bedspring could be heard from the headphones.

Members of the First Amendment community and the porn industry are watching the trial closely. A conviction would put a chill on the $10 billion adult entertainment industry, said David Hudson Jr. of the First Amendment Center in Nashville, Tenn.

Porn star Aurora Snow, who has appeared in more than 700 movies, attended the trial to write about it from a performer's perspective. She said she was stunned how "moderate" the scenes described by prosecutors appeared.

"This isn't even the most extreme stuff out there," Snow said.

smccabe@washingtonexaminer.com