I was at a beach resort some time ago, while at the main restaurant there was this very cute young girl (still 18+, as she had a beer) in a short and tight denim mini skirt. She put a napkin in her lap so nothing could be seen. I think I've never seen a girl so paranoid about her skirt, as she kept adjusting the napkin to ensure it covered all the good stuff. I was still watching her as her legs were really nice anyway. They finished their meal and she was really careful to put her hands between her legs after removing the napkin, before standing up.
She was walking in my direction to exit the restaurant when she dropped her phone. She immediately bent down instinctively, as if she had forgot she was wearing such a short skirt. Good for me, because I could finally see her underwear: a lacy pink thong, sheer in the front so I could see she wasn't shaved