Came across her advert, and WOW!  Called the number and left a couple messages, but no response so far.  
 
http://baltimore.backpage.com/FemaleEscorts/l-k-1-new-and-real-g-alexiis/9367243
 
I also did a google image search and came across an Instagram profile of a young woman who is a dancer in a club in Philly.  
 
Seems likely that this a bait-and-switch, ie, this BP advert is just using the dancer in Philly pictures.

That might be legit. But you never know. LE will try to get you to talk about prices and services when you come into the room. If you walk out they will let you go, according to an article I saw on AA county.