recorded like '' voyeur '', the camera under the desk .. the scenario : Cathy wear her office shoes, a pair of heels, but no so used,and her feet are inbad conditions inside! so, she make some dipping, dangling, and, she decide to take her well worn flats / ballerinas, ( you can see that she perspire well, the insoles are really printed! ) and she continue her shoeplay with the flats! finally, she will remove her shoes .. at the end of the clip, she take her heels and let her ballerinas under the desk ( yo can now smell them!!! )