I have talked about this a little, but I'm using it in every set these days. So, I thought I'd share it with you guys as it's working very well for me.
There are a number of ways you can start this, but the best way I have found if using a mini cold read. My cold reads are bullshit. I don't even try to make them seem real to her at all. I'll just grab her hand, look at her palm and say "Interesting..." drop her hand and turn away slightly.
When she chases me a little I tell her that I saw in her palm that her favorite web site is barely legal boys.com or chicks with dicks or some other crazy sex site. She always denies it of course. But, I frame her denial as her not being able to admit she's into that.
"Oh sweetie, you don't have to lie to me. It's all cool. We all need a little something to get us in the mood sometimes."
Now, I have framed her as some kind of sex fend and her denying it as lying. All she can do is admit to being a sex fend because the more she tries to deny it the less people will believe her.
Try it in the field and let me know about your results.