I love EUF scenarios and stories. Most of my writing features some underwear-related embarrassment, though it's rarely exclusive to that.
http://toddcheese.tripod.com
"Panties on Parade"
http://toddcheese.tripod.com/Harriet.html
"Mindy's Mall Misadventure"
http://toddcheese.tripod.com/Mindy.html
"Cindy on the Mound"
http://toddcheese.tripod.com/CindyOnTheMound.html
"Undressed for Success"
http://toddcheese.tripod.com/Undressed-for-Success.html
"Invisible Isabel"
http://toddcheese.tripod.com/Invisible-Isabel.html
"Keilani's Long Vacation"
http://toddcheese.tripod.com/Keilani.html
(Before anybody asks, no, I don't know when I'll ever finish it, sorry.)