She wants to have sex. All she wants to know is that you're going to call her afterward, so that she feels good about what she did—even if she doesn't actually want to see you again. You let her know that. You tell her, "Take off your pants." She does. You enjoy yourselves and give each other many orgasms over the course of the night, the morning, and perhaps even for years afterward. One morning, she asks you how many women you've been with. This is the only time you're allowed to lie.