Nice. Yes, one of those once in a lifetime photos. My first job was in an office. This was when very short mini skirts were normal. I loved seeing bare legs and sometimes butt cheeks at desks. Always wondered how many weren't wearing panties. Cell phones were not around then and a Polaroid camera might be too obvious!
Since then many people have snuck pictures of my wife wearing nothing except a mini skirt. Sure wished someone would post those but I may not recognise her.