Some women have a second tongue, which they use on their lesbian partners
Seriously, it's probably part of the broken hymen that is protruding. I've seen this before. If I find any other pics, I'll post them as another example. So if you ever see this IRL, don't freak out, she's completely normal.
Read this forum for some real life examples (sorry, no pics)
http://www.steadyhealth.com/Hanging_piece_of_hymen_t63931.html