http://www.youtube.com/watch?v=FYRnyiWYFTc
Basically, suppose you are in a long-term relationship with your loved one. And some rich man offers you 1 million dollars for a night with your partner, and he can do whatever he wants.
Guys: Would you say yes or no? What if your partner wanted to do it, how would you feel and would you allow it?
Girls: Would you be ready to do it or not? What if your partner wanted you to do it, how would you feel then?
And you can answer this question reverse as well if you are a girl. Like would you be willing to give your guy up for a night if a woman offered 1 million , etc.