I was riding down the highway with my brother when I felt my stomach gurgling. I was hoping we would make it back to his house before my sphincter burst. Unfortunately, my sister-in-law called him at that moment and asked him to pick up some things for dinner. I shut my eyes and clenched my cheeks. We stopped at the grocery store and the motion of walking from the car set me off. I couldn't hold much it longer. As soon as we entered the store I dashed for the bathroom and found a luxuriously large stall. I began to pull my pants down and sit but before my ass could hit the seat it happened.