This scene is a voyeur's delight, a skillful reverse striptease, complete with lots of pussy play and fingers finding damp slots. Christie needs to change her nylons, from pale everyday hose to elegant, sexy evening black. She does so with a flourish, making the most of the opportunity to tease and show off her body, slip her hands into her lap and let her fingers play with all the damp goodies down there, before redressing and preparing for the next scene.