Playboy bunny

A Playboy bunny is a young woman in a deliberately sexually titillating costume, which was originally devised by Hugh Hefner, founder of Playboy magazine, to be worn by waitresses in his Playboy clubs.
The torso has a tight strapless, sleeveless leotard (often black), cut very low in front to show the cleavage, which is enhanced by an uplift bra. There is a fluffy white ball on the bottom, which is meant to represent a rabbit's tail, and the woman should also wear fake rabbit's ears (though the ears are often omitted). The costume is completed by white cloth cuffs at the wrists, and a cloth collar with a small black bow tie (imitating details of men's formal attire), tights (usually fishnet or possibly seamed) and shiny stiletto-heeled shoes.
If a bunny-costumed woman bends over, the "tail" calls attention to her bottom.