First you have to understand his attitude toward pornography, and to understand why anyone needs an attitude in this industry at all, it's worth paying Jeff Stewart a visit.

Stewart's company is headquartered in a plain, flat-roofed building in the San Fernando Valley in northern Los Angeles, the Hollywood of the porn industry. Stewart is standing in the corridor wearing a green T-shirt with the words "Relax, it's not your daughter" printed on it.

If it weren't for the scars on his face, Stewart would resemble the actor Christoph Maria Herbst, who stars on the popular German television series Stromberg. Stewart walks into his office, a small, box-like room with a large screen on the wall. A close-up of a black woman, dripping with sweat, her buttocks sticking straight up in the air, appears on the screen. Suddenly a green liquid shoots out of her anus. Stewart glances absentmindedly at the monitor and says: "I really have no idea how that happened."

Stewart had a lot to drink the night before and didn't sleep much. His eyes are glassy, and he seems surprised to hear that SPIEGEL isn't a porn magazine from Germany. Once he has processed his disappointment, he says: "Doesn't matter," and burps.