I would imagine that the exit is handled by your entry. If you start by making it clear that all you want is consequence-free sex, and you behave consistently with that throughout the interaction, there should be no problem. You are the man; you should be leading; she will accept your leadership and accept that it's only casual if your leadership is strong enough.
Also, discretion is important. "Consequence-free" means that no one but the two of you know. Her boyfriend, parents, friends, work colleagues, or whomever never find out about it. If she were to make a rape allegation, it's probably because someone found out and she feels the need to protect her reputation. |