are aware of all of the "what if's" and will not be surprised if any of your concerns come to pass.  Many wear a latex glove on the hand that is doing the massage and oftentimes, the customer is unaware because she puts it on and removes it out of his sightline.  If you have not done any prep in advance, which is almost impossible with a girl you are seeing for the first time and not sure what's on her menu, yes, there might be a turd lurking near your anus, and yes, when she withdraws her finger, it might follow her finger out.  This happened to me a couple of times, and when one provider saw it, she said, "I better take care of this" and removed it with a Kleenex to the toilet.  Being the smart ass that I am, I yelled behind her, "Keep it, I've got plenty," and she started laughing.  A moment of levity rather than embarrassed silence can defuse any tensions from minor mishaps during anal play.  If she's a pro, she has had this happen before and knows what to do.

If she’s a pro she will be prepared.

Sometimes the job can get shitty 💩 lol literally. If it was not discussed properly or to I would be prepared to see caca. Having an enema prior to play helps. I always have puppy pads just in case because no one wants shit on the hotel bed. Hopefully, she’s ready for what could possibly come. Proper preparation prevents poor planning.

If she offers that kind of play, she likely has a condom or disposable glove handy and knows how to turn it inside out during withdrawal to minimize any mess. It’s completely normal for it not to come out perfectly clean—so don’t stress too much.

Just do the best you can to prep in the shower beforehand, and if you're concerned, you can always place a towel on the bed—just in case there are any unexpected marks. It’s all part of the territory, and a good provider will be understanding.

I use the black nitrile industrial disposable gloves. I think they look sexy when I put them on.

Next time..

Next time you may wish to relieve yourself before the session.

To each their own, but shit is not sexy.  

If you are considering receiving anal play of any variety, then also be consdering how to be on your best pornstar behavior:
Change your diet up a few days before the event and rinse your rectum out the day of.  

Accidents happen, and you can tell when someone is prepared but still has some rust. Or maybe it was their very first time cleaning out, and they either overdid or underdid it. All of this is par for the course.  

But a complete lack of preparation is a complete lack of respect.

I have a blog post about how to clean out, and I consider it required reading.  
https://thecuntycougar.com/blog/how-to-prepare-for-ass-play

TL;DR Rinse your ass out a few times and then wash all your external crevices with soap before letting someone explore