(As for the title I had too XD)
You begin walking towards the direction of the gas station, and all was well. The only thing that was on your mind was that lady an hour ago as you approached the gas station. When you walked inside you realized that you needed to take a shit, so you walked into the bathroom. The only thing you could say about the bathroom was that it had a window that you could open.
You locked the bathroom door, and motioned to take off your pants, but when you did they wouldn't budge. You tried again but to no avail, and you eventually felt pain in your ass so you looked back to see it expanding. You wanted to yell, but your pride wouldn't let you, so you continue to try to get your pants off. However, your efforts were futile, and eventually your ass ripped through both your boxers, and pants leaving it bare.
Your pants were ruined, but you still needed to shit so you sat down and did just that. When you went to flush you saw that your shit literally filled the bowl halfway, and would clog the toilet. You stared at your ass in disgust, and suddenly it swelling. As it swelled you noticed that it looked oddly like the ass of a.....