Damn, this episode was just aired here a week ago and I tried to find it under the drain tag, but didn't. Just to be safe though I searched the forum and sure enough you already got it. I will say this, Laura Bailey does a fantastic job for Fuko in the english dub, very, very, seductive.
Here's some crappy links to the episode that most focuses on her and her power if you want to hear her in english.
And while I'm at it, the wiki
Edit: Oh, she does have on good part in the episode beforehand too, but you'll have to go find that yourself if your interested(though it is really nice...)