"I got a nice hot meal, freshly made just for you." He says with an evil smirk, although you can't see it as you are crushed with under his giant ass.
He expertly used his butt cheek muscles to somehow align his asshole with your mouth, something that you feel he must have experience with. "Here comes the train, choo choo" he says, and to your horror, he starts forcing out thick logs of shit out of his hole.
The first log comes out, it is a foot long, and very wide. You are unable to chew it as it comes out too fast, so it forces itself down your throat, stretching it out. The flavour is unbelievably bad, it tastes like the worst thing you can imagine, and you cry as it is forced down. After it reaches your stomach, you hope he is done, but then another, bigger, longer, and harder log comes out, further increasing your suffering. The shit enters your stomach again, and it starts stretching it out, making you look very bloated, but he doesn't stop, and continues to shit in your mouth. He keeps going until your stomach looks like you are 9 months pregnant, even though you are male, and you feel like you are about to burst, after which, he finally gets up to look at his handy work.
"Did you enjoy the meal? I worked hard to ensure that it would fill you right up." He says, as you feel yourself about to vomit, but for some reason you can't. "Don't even try to spit it out, I keep my food nice and solid, making it not possible to regurgitate."
"That was disgusting! Why would you make me eat that?" You cry.
"What do you mean disgusting? I will have you know that my meal plan is rated 5 stars, and meets all the dietary needs of growing boys. I always carry it with me to prove it." The gnoll states, as he pulls off his loincloth, revealing his that his shit was indeed rated 5 stars, but based on how bad it tastes and smells. It also reveals his monstrous member, and balls the size of bowling balls.
You rub your stomach, in pain and disgust, and you lie down. At this point, it was getting late, so the gnoll decides to...