Yes, that can happen but generally when you do anal, you get en enema first so it’s clean. And it requires also shit ton of stretching (foreplay) and lube. Also eat fiber! but I guess that’s just a general advice in life.
thats y in some stories,when they say they came ready,they meant they stretched and cleaned the hole. However,some people actually don't mind the poop at all cause they have poop kink.
so go to the toilet before doing it,people get infections by not cleaning them holes~~
What would happen if he is sucking the anal and actual shit comes out, my overthinking is killing me