It seems to me, that if you are so special to this girl, then you would probably already know who each other really is, and if you don't, well you should do!
This seems to me one of there usual fantasy exercises, why ask folks on here, when you should know what response you will get!
If it really has happened, well, only you would know whether you want to do it, any advice from here would not help you in making a decision.