When someone uses the term BJ, does it usually imply that it is to completion or not? Are the terms BJ and BJTC sometimes used interchangeably (when done to completion)?

unless she specifies "to completion", and then you can not even assume that she will swallow your semen unless she further states so with the term "no quit, no spit (NQNS)' or she simply states that she swallows.

There are many gals who, when they sense you are about to come, will finish you by hand.  Some of these are gals I see and the experience is still quite delightful, but not quite the same as being able to come in her mouth and have her swallow.

Here are the pertinent abbreviations:

BJ:  Blow job, no come in mouth, often using a condom.

BBBJ:  Blow job, no condom, no come in mouth, . finishes you with a hand job.

BBBJTC:  Blow job, no condom, come in mouth, most likely will get up quickly and spit out in the sink or into a towel.

BBBJTCNQNS:  Blow job, no condom, come in mouth and swallows.

There is also a style where instead of letting you come in her mouth (CIM), she has you come on her face which is abbreviated COF.

There is yet another variety, popular in porn films, where instead of swallowing, she will have the come dribble out of her mouth, down her chin, and onto her tits.  It's a great visual.  Sometimes she will even scoop up the splooge and then swallow it .

And finally, (at least for this dissertation) there is the snow ball ending whereby after you come in her mouth she will swap the come with you while kissing.  It really helps the couple to bond tightly.

I'm sure there are more variations, but that's all I can think of for now.

Never expect what has not been documented in reviews.

Swim

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Great answer (as usual) Doctor..

1st time a provider wanted me to snowball.. I had no idea what she was trying to say.. never occured to me to do that.. now I feel badly.. bond closer? darn missed a chance to bond.. I'll have to remember that.... she was pointing to her mouth.. and MMMMIUUMM? MMUUUMMmM?  I had no idea.. what a dolt I am..

There isn't a snowballs chance in hell ...