So why do girls do it? Oh, I don't know. But the research found that Calgary Flames' fans who bared their breasts after a Stanley Cup win two years ago were: "motivated by a complex set of factors, including a desire to celebrate the Flames victories, a desire to break the rules, feelings of stardom and a sense of history."
LINKS: When Calgary Flames fans win we all win - PaulKatcher.Com
"The context was so important," said Mary Valentich, professor emeritus of social work [social work?!] at the University of Calgary. "You just wouldn't necessarily do this elsewhere. It had to be the right kind of setting." So there you go. Context matters. Accordingly, here's another picture of some breasts. And here's some nude oil wrestling. [Hat tip FleshBot]. Meanwhile, Australian cheerleaders aren't even allowed to expose their navels anymore. Sheesh already.
When women bare breasts, the context is everything - The Globe & Mail
Australian cheerleaders told to cover up midriffs - Sports Illustrated