8 XXX : PublicFlashing

I'm confused. Is this some sort of excepted social greeting between girls? Like a I'll show you mine if you show me yours thing? like if two complete strangers, both female, walk up to each other and one flashes the other is the other socially obligated to return the gesture?
I...I still wanted oreos on my McFlurry
Video of this fairly easily to find. Just look for mcdonalds flash on xnxx or xhamster I believe.
burger with a side of phone number.
Upvote for the username.
Nice