GF dropped a bombshell?

My girlfriend of three months recently broke the news that she's an under-the-table call girl who performs extra services (if you know what I mean) for high-end fees. Is it totally unreasonable for me to ask her to leave her past career behind? Otherwise I was thinking about going into business with her. I could be something like a manager or maybe play the other side and help her rob some of the sick losers she gets?