Ask a Porn Star

Did you get any type of formal or even informal training on how to do a BJ, or did you just do on-the-job-training when you began to work

Not even close.  
You want to learn how to give amazing blow jobs then you ask a well reviewed escort whose clients rave about her oral skills :

Who might that be?

sorry Mr Fisher my previous answer was addressed to the poster - as to lessons..

I learned 'on the job' as it were. Gradually over time, with plenty of practice you learn techniques with tongue and lips, and pressure and speed and from the feedback that guys give you - until you are a master.
It helps if you love to give a man pleasure that way too of course!

that one girl had a good tip about teeth

What questions did you have as a youngster , if you were interested in sex,  on how to be more proficient at sex? Also I am thinking about the nature and scope of the conversations that you would have with women that you confided in when you had questions regarding pleasing men, learning about your own spots that give you certain sensations and knowing more about the anatomy and the physiology of men as it pertains to sex.  Also I am thinking about the dialogue, demonstration and interpretation of techniques that might have been demonstrated by yourself and some of your peers.
 
Finally I can see you going through certain points of trial and error through practice as you learned to master certain parts of your craft.  Now I am thinking of certain mistakes you might have made how did you know to correct them and the non-verbal and verbal cues you received that made you correct some of the things that you were doing or helped you ameliorate as a women and of course as your learned more upon your entry into the providers world.  This would be a critical part of your life because now you learn about  a cross section of men and how varied their taste and preferences are. This would be an adjustment for you as a provider as well as a woman because you are in a position to learn so many things about yourself as well as the men that you see.

The Youtube version has black bars over some of the ladies boobs.
The woodrocket.com version does not.

I think some guys out there need to watch this..

A self-promotion opportunity, so I thought I would help her out by being the foil. "Biting" meant I was taking the bait.

subtle for me.  You said "odd" choice of words, and put up an angry face.  Still trying to figure out how that equates to a double entendre, which usually means something can be taken both in a naughty and innocent way.  I see a metaphor in my post, but not a double entendre.