butt cheeks

It was a really windy day and I recall talking to someone and this caught my eye. Sitting upside down in the park with the leaves, I knew it had to be a photo by the cut of the paper. I quickly grabbed it before the wind took it away and couldn't believe what it was. At first I thought that it was taken for evidence against someone (cops?) in some court case due to the scars on the right cheek. But then i noticed that there are actually people sitting in front of the naked butt (you can see the left arm of one person and vaguely make out a person hidden in darkness on the right. I do know one thing's for sure, that all concerned are now glad their respective faces are not discernable.