Vivid makes a compelling argument:
"'Let's assume that we're filming an adult movie and it was taking place in the swashbuckler times. All of a sudden, Captain Jack slips on a condom,' Vivid's lead attorney Paul Cambria Jr told the [Los Angeles] Times. 'Obviously, that would basically destroy the movie, because it would be fake. Obviously, people would know that couldn't have happened then.'"He's right, of course. Everyone knows the one thing viewers demand from their pornography is verisimilitude.