black swimsuits to promote the raunchy competition.
This year's Miss Bum Bum competition will feature 27 glamorous models, including an amputee, a playboy model who is the first American to appear in the event and a contestant who is in a polyamorous relationship with both a man and a woman.
The annual Bumbum pageant to select the nation's sexiest female buttocks will be held on November, 6.
See more photos below..