don't black mail her, don't even mention this site, if anything, if you want to, but i highly suggest you don't, you could say you came across a video of her on cam topless, but it was random and you aren't sure what site it was on.
she seems a bit of an attention whore, your best bet is to just ask her out, or to come over and hang out with you sometime, see how far that'll go, but don't push it too much, have fun, that's key, adn i'm sure you'll cyber sex cam with her later, and maybe after that, you'll get a nice blow job, and after that, after some time, you can start just video taping it, i'm sure she'll like that attention too.
