One of my personal favs. of the Candid sets.
Fully clothed, she talks the gents into doing a headstand, and her skirt falls to her midsection with no panties underneath..wow. The first guy doesn't even notice, he's too busy trying to do the headstand, until he pummels her into the wall. The second gent got up, but when he's handed the phone, he can't quite hang on and nails the young lady pretty good.
Good stuff, Enjoy!
(Sound works)