I've loved PieMe's posts with various categories of pictures from lots of people but one I'd like to see that I find seriously hot is when you have a number of girls in a line who will be getting wet, pied, or gunged and they all know throw that nobody's getting out dry or clean so they're just waiting their turn for the inevitable. Bonus points for me at least if the pictures show one or more girls totally messed up and one or more girls completely clean and watching.
(Obviously difficult to do unless you're a pro producer or have a lot of really good friends so none of these pics are mine!)