ynot30,
I lived in and around philly all my life. I have never encountered a BMP. If you are looking for a little action, might I suggest a black strip club. At least 75% of the girls freelance i.e. private parties. If you go that route you will need to get a couple of $5.00 lap dances (cheap isn't it), then ask them very quietly if they do private parties. If she say no, move on to the next one. Once you strike gold , the negiotiations can start.
PS
The quality of the woman will range from 5 - 8, sometimes you will get a few 9 or 10s.
Happy hunting
triplethreat44