This might be stretching the definition of "EUF" but I feel it at least deserves an honorable mention.
Emily Deschanel starred in the TV show "Bones". Described as a police procedural, it is based on forensic anthropology and forensic archaeology, with each episode focusing on an FBI case file concerning the mystery behind human remains.
Anyway, In season 3 Episode 5 titled "Mummy in the Maze", Deschanel dresses up as Wonder Woman. Where the EUF factor comes in is interview and B roll footage where she states that at first she thought it would be fun to dress as a super hero, but after several days filming, she began to be a little uncomfortable "spending the entire day running around in her underwear".
In one of the images taken from the B role footage, you can clearly see she's a little uncomfortable, as she places both hands on her bottom while doing a scene with her co star. That clip is not in the show.
I find the psychology interesting-- obviously, a Wonder Woman costume is not what you would consider underwear in the traditional sense. However, if the girl herself describes it as such and feels as if she really is running around in just her panties, then the reaction is the same... one of exposure. Where do you draw the line?
Below are some images and here's a link to some of the episode's footage:
https://www.youtube.com/watch?v=YqPcBFJ7BYA
Hal