In the dimly lit, anonymous setting, a man and woman, strangers bound by mutual desire, engage in a silent, intense negotiation. She whispers her safe word, he nods, understanding. She turns around, bends over, and he slowly, carefully, begins to push his way into her, inch by inch, as she grips the furniture, gasping, her body tensing and relaxing, accepting him, going deeper, further than she's ever gone before.