Exposed
In the massage class I'm taking, we don't have the luxury of having private rooms since we're in a classroom setting where the teacher needs to see us all. So there are several tables set up and students all around and not much privacy which is really only a problem when we have to undress/dress behind a sheet held by another student and it's also a problem getting on and off the massage table.
Today after giving a full frontal body massage to one of the gals in the class, I pulled her blanket off of her which caught on the sheet which slid off her chest and exposed her boobs to the class.
She then gave me a full frontal massage and returned the favor by being clumsy with the sheet which exposed my thong-wearing arse.
I at least had some semblance of privacy... she unfortunately didn't have the booby equivalent of a thong.
So we both got a breeze and possibly some stares but we survived and we learned what NOT to do.