Twilight Sparkle had a big problem. It was time for lunch and her throbbing erection refused to go away. she had managed to hide it so far by shoving her penis into her own ass. but now she had to shit so bad that the shit had forced her penis back between her hairy legs. she crept ever so slowly to Applejack's farm, afraid to shit or jizz in her sweat pants. with the utmost concentration she managed to find an apple tree alone in the corner of the farm where she could masturbate and shit her pants, as was her habit on such days. she felt a rumbling below the belt, she did not know whether she was coming or going. staring in horror she looked between her legs to find Big Mac liking the liquid shit off of her backwards facing penis. He smiled briefly, and she knew that she was safe. Big Mac turned around, pressing the patch of ulcers on his left butt cheek against her penis, patty came immediately, shooting cum onto the side of the treeand launching it up into the sky. the entirety of ponyville watched in horror. the shame caused patty to lose control of her bowels, shit and cum shot every where, especially on to the face of big mac who was squatting at ground zero. when the earth stopped shaking, he stood up and declared. "so that's where my propane tank was" and walked out of the building. he was never seen alive again.

Current general thread is at >>21935414.

Everypony come back to this one once that hits the image limit.