In the heart of the city, Traudl Caff, a seasoned hoe, teaches a eager newbie the ropes of street sex. Dressed in skintight PVC, she leans against a wall, pulling him close. He tentatively thrusts into her mouth, but Traudl's not having it. She grips his hips, pushing him deep, her throat contracting around him. She swallows, her eyes locked on his, before pulling back, her lips glistening. 'Again,' she commands, ready for more.