AH ok, that makes more sense. I can see how role playing photographer + model can be really arousing since I was in a situation where this unfolded before me (I was not a participant but assisting a novice photographer "shooting" his g/f). It's an even bigger win-win when both people are professionals, you can at least get some good images out it!

Yes, boundaries, consent, and lots of communication is key in these arts. My most recent shoots have been with 3 or 4 people these days (i.e. model + me + another photog). It's a lot easier that way because everything is out in the open and wireds don't get crossed. Once a good enough level of trust is built, then doing 1 on 1 shoots can be done.