Kirsten Stewart was caught by paparazzi reporters recently while enjoying a casual walk with her friends. The star tripped and fell revealing her crotch which a lucky reporter was quick to photograph. She seemed to laugh it off and not be too concerned, while we are more than happy to get a glimpse of her panties. Since her role in Twilight the actress has not lost the interest of the public and still manages to surprise her fans with shots like this one.