I've found a cute new line that seems to work for me really well.
Me: (wearing a skirt set of some sort) So, do you think I'm wearing panties under here, or not?
Custy: Yeah, I think you are.
If he's right I say: You're right! Guess what you won? A very special private dance with me! Aren't you excited?
If he's wrong I say: Oh no, sweetie. I'm not wearing any panties. Come back and get a private dance, and I'll show you. *wink*
I usually deliver the line on stage at the beginning of my second song, then at the end of the song come back over and say something like, "Are you ready for your dance?"
Lots of variations to this one, depending on what the custy says. Try it out and let me know how it works for you. :D
