One of my hottest flashing experiences (and safest) came last summer when two attractive women came door to door selling an internet service.
My boyfriend saw them from the window and said, "Now's your chance!" He dared me a long time ago to flash someone, anyone who came to our door and it was to be really, my first real flash.
I saw them covering the neighborhood and knew I had time, so went and changed into short cutoffs without underwear, and then PURPOSELY left my zipper open, but pretended I didn't notice. When they got to my door, I invited them in and let them give me their full pitch, all the while with my genitals in clear view. They were in my living room with me for about half an hour, looking at me, a bit unsure of what to do but they carried on. They didn't have the nerve to tell me but didn't know what to do.
My pussy lips were on display and they were looking and trying not to look at the same time, while giving me their pitch. I was almost sweating as I tried to keep my composure, my boyfriend hid in the next room watching. By the time they left, my pussy was soacked. I could hear them whispering and giggling as they walked away.
We think about it often, and would love for more similar experiences. Maybe we'll ask to have them over again, just don't know how to do that without seeming obvious.