How about a story were some female dancers get tied up. You know what they were the bodysuits and tights (http://pro.corbis.com/images/42-1805333 ... B5BE228%7D). Maybe with a harness or something else that has a strap between the legs.
other ideas
(http://www.besi-inc.com/OTS.jpg) (http://www.xsgb.com/images/OceanSafety/175_sport.jpg) (http://letustalk.files.wordpress.com/20 ... jacket.jpg) (http://ca.youtube.com/watch?v=Ovcgg9Z0j ... re=related)