I've taken several providers out for a meal OTC after a session.  Usually it's at their suggestion, or they've given me a signal they're open to it.  It can be a lot of fun.

If he is single, I have done it but it is rare. I find it only leads to losing a great client, and possibly the money that comes with it. You get to a point where he does not want to pay anymore, and these offers start coming from his end. My rule of thumb is never do OTC time on a day where no Paid time is scheduled, and I have seldom ran into problems doing it this way. If a guy books me for 2 hours and I have nowhere else to be, I am happy to have a meal with him without charging him. Hell, it's a free meal, and I get to go out!

One Fav is a long drive for me.  A couple of times she made lunch for us...  declined my offers to go out.  More recently, I shop on the way there, we have a session & make a nice lunch...  a rotisserie chicken & salad has been my favorite.  She keeps the excess which is at least a couple of meals worth for her.  I go home well fed & don't risk fast food which my system seems intolerant of.

one bought me lunch after I bought her lunch (because I forgot to leave the envelope). The other who was my ATF said sure let's get together for $1200. Great reality check. No longer ATF.

I have never been too happy I did...and in most cases I have felt the complete opposite! It generally resulted in the client becoming too presumptuous in regards to more OTC and/or him completely losing sight of the provider/client basis of the relationship. Like others said, it's a great way to lose a good client. I do continue to offer OTC to two longtime clients, and am relaxed on time w/some others. I enjoy the company of all of them, so it's fine. I never offered OTC myself except ONCE, to make up for the client accommodating a last-minute change in my schedule (that turned out very badly in the end...it became kinda routine for him to overstay and he eventually tried to start a relationship).  

I used to be more accommodating in terms of OTC when I was new and did mostly 1 hour dates. I was not used to getting paid for time spent at dinner. I had clients that would never consider paying for more than 2 hours, but I wanted to be friendly and give my loyal clients that personal, non-rushed type of service that goes with extended dates. These days a 1-hour appt is no more and most of my dates are dinner dates. So for me to offer one for free...there goes my living! Lol. But if a girl connects with a client and/or wants to enhance his experience in some way, earn the infamous 9- I forgot it was a service, or achieve backchannel accolades (whether they are explicitly promised or just perceived/expected), then she may be motivated to offer it.  

Take it if you want...just DON'T ever *expect* a minute extra again unless she specifically makes the overture. The one thing I noticed is that clients always expected the same thing or even more time in the future.

Spent several otc hours with one lady, but I also consider her my friend.  
Hell, im old enough to be her dad.
I would have a hotel for a couple of days after our appointment and she would actually come and go from my hotel. We would shop, eat lunch, dinner, hell she would set up appointments from my room.  
She never took advantage of me or asked me for money.
Did I buy her things occasionally? Yes, because she needed it and I wanted to.
She escorted because, she not only supported herself, but the rest of her family.

However only when I suggest. I have rarely gone with a client upon his suggestion. I keep the boundaries solid and have no problem having a chat if I feel things are not right. Always gentle but firm. I will cut off a guy if he expects it though, that is pushing me past the red line,.

And this is with very established guys, not ever on a first date.

At her invite after the session I have had lunch/dinner OTC with three of the ladies I see regularly.  

I think it's fine to do but keep a few things in mind. Don't cross the line into thinking it's a relationship. Don't expect it every time. Let it be her inviting you. I'd also add let it be after a session. Then there is no awkwardness of you getting free time and hanging out but never seeing her "on the job".  

It sounds like this is what you are asking about. She asked you after a session.  If you're OK with it go for it. How often it happens? For me like I said three of the ladies I see have offered. That is a very small percentage of the ladies I have seen. With two of them it has been after every session. With the other it was after seeing her a few times and we only went out twice. (She is no longer in the business.)

I have seen others post about asking the provider after a session if since he is going to eat would she like to go with him. He makes the OTC clear. I don't see anything wrong with that either. I haven't done it though.  

The warnings given by London and others are definitely something to consider.

That's how my ATF became my ATF. We had our first session and it was mind-blowing for me, only my second time with a provider. At the end I held her and said "I'd love to take you to lunch, but I know better than to presume", then I went to get dressed.  Suddenly she appears back from checking her messages, and says "I've had a cancellation, do you want to go have lunch?"

Since then, it's our standard procedure. We have fun, then go to lunch (rarely, dinner). Her attitude is, "I like you and I have to have lunch anyway". My attitude is, just tell me the boundaries and we'll do it however you're comfortable.

This has lasted 10 months, but we don't see each other more than monthly.

I really owe a thanks to whoever it was who cancelled that day....

When a provider invites me for lunch I decline her graciosness .

Extremely  unprofessional of her  from my perspective ,   along the lines of  asking someone you  met a few times at dinner parties  for their autograph .  

usually after a paid session, never otc without a session. Has ranged from lunch/dinner, shopping, hanging out, even hiking with a fav.

Lunch, dinner, or a trip to a museum with a pretty yong lady whose conversation and company I enjoy?  Why wouldn't I take that offer (even though as a gentleman I will assume I'm picking up the check).

Just be aware:  this is usually NOT an offer for OTC bed time with her, or a marriage proposal by her.  This can be a very lonely business--treat it on face value:  she enjoys your company and wouldn't mind having you as a casual friend as well as a client.

I've offered, but the offer has never been accepted.