Oh wow, I missed that too -- jokingly telling you to flash a guy as payment for his work on your car. That is over the line..... you had said this earlier in this thread:

"But I fully agree that it’s over the line to intentionally expose myself to someone."

You called his bluff and exposed yourself in your room while his friend was visiting. So, from this angle, you've gone against your own principles. I am only pointing out the fact that you had said it would be over the line for YOU -- your comfort zone. It would be totally different IF you were completely into the idea and wanted to do these things, in every way. And I think you know where the line is with your own comfort level.... you said it would be over the line to intentionally expose yourself to someone....

I'm afraid that this is heading to a bad place for you, my dear. I really do not think anything good can from this.