
This stripper is performing, she appears to have a top on, but she looks very naked to me, and not just because she's giving her crotch a good airing out. True, she's a stripper, and she's performing, which makes her not so naked. But all around her are the clothed lower torsos of men. They are seated, and standing. The huge social gap between the naked woman writhing on the floor and the clothed men who watch her makes her appear more naked. The apparent social imbalance more than makes up for the performance aspect.
(I say "apparent" because in America it's all about who is paying who the money.Tonight she's dancing naked for the guys, tomorrow one of them may be asking her, "Would you like fries with that?") But in purely visual terms, her lack of clothing and their possession of it implies more of a "slavegirl" relationship than would be the case otherwise. More about that later.