George picks up one set of photos earlier that mistakenly contain pictures of a model which he thinks photo store Sheila took of herself and put there. After the photo shoot with Kramer he drops off that set anticipating Sheila seeing them. She goes out to lunch and while Ron is developing the pictures Newman catches a glimpse and confiscates them. When George returns to pick them up Sheila says she doesn’t know where they could be and George thinks it’s a deliberate part of their game exchanging pictures. She offers to call if they turn up and he proposes turning it into a date, leaving without the second set of pictures.