Are there any women out there that catch guys looking up their skirts and give the guy a little tease show?

As a matter of fact there are. It happened to me. I was hiking with my wife's younger sister (20)in the woods. We were in a remote area and she asked if we could stop because she really had to pee. Rather than her go behind a tree, I just turned around. She dropped her panties hiked up her skirt and started. At one point I slightly turned my head to peek, and she stopped mid-stream. She asked if I liked what I saw, in a nasty sarcastic tone, I really thought I was in trouble. Then she sighed and said, "ughhh...all right" I turned around and she was still squatting, pussy in plain view! "...come on" and I walked over and squatted down right in front of her. Then she spread her pussy open and continued to pee right in front of me! When she was done she grabbed a leaf and wiped herself off. Then, I swear to god, she took her finger and gave it a few quick flicks over her clit!!!
We both got up, and she leaned over and gave me a quick kiss on my cheek, looked very sweetly and shyly into my eyes, smiled, and said, "don't tell my sister"