Waking up, Jeff's vision was still much too blurry to make anything out. He tried to stretch, but it didn't seem right. He then remembered becoming Fan's anus, and began to become stressed again. Had he missed the 8 hour opening? What if he did? Could he change his situation? What if he couldn't!? He felt a bubble pass through his body. Wait, he could feel his body! Something must have changed while he was passed out! He just had to figure out what.
Just then, he heard his mom from the kitchen, calling Fang to get his breakfast. This meant that he had missed his 8 hour opening, but he was too curios to care all that much. He felt Fang get up and gallop into the kitchen, all the while bouncing to his bounds, and getting quite ill.
Another bubble passed through Jeff when Fang stopped to eat his food. Jeff felt the pressure in his throat, and didn't have time to try and stop the fact from escaping his lips. He gagged, and released several more while Fang ate.
Suddenly Jeff felt something fall into what he thought might have been his intestines at one point. It felt really good, whatever it was. As if he was getting fisted. He felt it travel through his noticeably short intestines, and right to the base of his stomach. Then something enter his anus again, and get pushed through his intestines.
This continued until there was considerable pressure at the base of his stomach.
He felt Fang sit up from eating, and shake his head. Fangs head seemed to sit atop Jeff's anus now. Jeff realized he must be the dog's entire digestive tract.
He decided to test his theory by flexing his "intestines" which he assumed was Fang's stomach. He put as much pressure as he could on the dog's stomach, and felt the pressure at the base if his stomach (Fang's intestines), quickly subside. He felt a rush of pressure fill his stomach, and press the back of his throat. That was proof enough for him. He then decided to relax his throat and mouth, so that Fang would want to go outside.
Jeff's mom heard Fang barking and scratching at the door, and walked into the living room to let him out.