Charity auction at my favorite lesbian bar

As you all well know, I'm a sucker for charity, so I certainly wouldn't dream of passing this up (and $2 PBR's, so really, I ask you, is this not a win-win?) Anyhoo, The ladies were auctioning themselves off, and while the audio is a little shoddy, the young woman in the middle is making some rather suggestive demonstrations with her forearm. I wonder what that's all about?