I like posing interesting topics as I hope to get discussion started. Curious if you ever gotten a freebie or had an special arrangement with a pro.. I have had a few.
1. This was many years ago and this pro has retired and moved out of state since, but she said I was her type and a handful of times(probably 3-4 times)I had a freebie when she called me when she was extra horny. We were kinda like FWBs to a certain point and I knew way too much about her personal life including her real name.
2. This Pro was only a part-time girl and only stayed in the business for a few months but to strum up business and to keep regulars, she offered me a buy two get one special. Of course I took her up on this and basically had six date for the price of four. We discussed possibly getting together after she stopped the profession but a few months later she found a boyfriend so that didn't come to fruition.
3. Again this was probably 10 years ago but had a one hour date setup.  We both got into it and we weren't paying attention to the time and stayed almost two hours. Offered to run to the ATM to get more cash but she said no and also gave me a discount the next time I saw her. Unfortunately she retired a little after that.
The sad part is all of these stories happened a minimum 10 years ago. So what's your stories...

I think an occasional freebie is just marketing.   I might be a bit cynical, but unless they forego money forever, I just assume whatever they say and do is to entice return biz.

… she’d have her pick of tons of younger, hotter guys than me!

The most common thing was an expanded menu (ex: BBBJ vs CBJ) and occasionally a freebie.  How much of that was appreciation for a good client vs any genuine affection is really hard to say and there's no reason it could not be some of both as they aren't necessarily distinct.  But I've always made it a point to remember that for the providers this was still their business.  I was simply happy to enjoy what was offered.

a massage only girl that turned into full blown sex (maybe uncovered) with no extra charge. Happened with me twice with same girl but am sure im not alone

After many years I have had "freebies" but nowadays I will always pay a donation even if offered.  It's important to the client/provider relationship to remain on a business level.  The business of pleasure.  Once that line is crossed then emotional issues arise and one begins to feel entitled and sometimes monetary favors are asked without intimacy.  It just leads into a level where the fun and freedom are restrained.  

It happened once but there was a situation wise, had a session at hotel, and we was well 30 ish min into the session… And then there was a phone call from service desk saying that they will come to change the lock on door.

Stop kidding yourself, its all business, even in a what seems like a normal relationship, its still all business

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Oh yes.  Quite a few in fact.  I’ve been damn lucky.

First time in 12 years...woke up this morning to an email from a long time favorite that says "Tuesday sesh is free of charge btw. Merry Christmas and happy birthday to you."   Quite the nice surprise.  
Has NeveR happened to me before.  

Hopefully by the time you leave “FREE” does not equal the rate when you tip- or maybe if you do it will have been more then worth it
Congratulations in any event.

Of course friendship in the hobby is still business and some is more friendly business then others.
Unlike marriage most of the sex is not “ Hall Sex”

Thanks.  But eyes wide open...it's still absolutely part of the business.  But pleasantly surprised at the nice thought. Happy Holidays!  

I did end up being a FWB with a provider right before and after she retired. Depends on how regular of a client I became, I often do receive free “upgrades” and extended time with them.