but they are doing really unusual things , things that you 'd never ordinarily expect to see girls do in pictures - not especially dirty things , because after all , these come through the federal mails from los angeles and glendale - but things such as one i remember in which one girl was lying down on the floor , wearing a black lace bra and black stockings and french heels , and this other girl was mopping her all over with a mop from a bucket of suds .