Do you mind if the girl is butt ugly, addicted to drugs, missing her front upper teeth and has an STD? Posts like yours are funny. Cheapest is not best or wise sometimes.
I think the cheapest BJ I've seen advertised is Vanessa a.k.a. magic mouth on LL. Never seen her cuz she's not my type but she advertises that she will suck your cock for 40$.
You should try to catch me when I have a special on. Special price for massage $40/30min includes hj, bj, or bbbj. Check my ad on Leolist to see if I have specials running.