Addressing you by Mr. shows they are already willing to take on a submissive role in your presence, so I'd say you have a better chance of getting a bj, hopefully its the female employees you want it from =) j/k
But please do make your attempt at getting one. They say you shouldn't mix business with pleasure, but I'm of the opinion you should always mix the two. One doesn't go without the other.
BUSINESS = $$$ + PLEASURE