It's the actress who plays the prostitute. She was a whore IRL.
It's no shocker or TMZ exclusive. She won two lola's (germany's version of the emmy) for her role in a serious drama. She was the first porn star to actually transcend into normal acting. Actually, she may be the only porn star to ever fill that gap.
In 2004 she actually raged on stage after she won an award, about how the media was trying to "smear" her image. Umm, you smeared your own image when you let a guy smear himself over your face!