You also have to remember that she'll get over 100 messages a day from guys just like you on fabs. Try it, but don't expect a response. Consider it a bonus if she even reads your message.
But as above, you'll probably end up paying in one way or another.
Fabs is good for checking someone out, but I always go the guaranteed route of AW when I want to get some.
The other thing is she's on fabs for her pleasure, but AW is for your pleasure. Guess that one depends what you want.