Another story about my brother.

This is from when we were growing up. He was in Highschool at the time. Usually when we went on road trips we both wore something for protection but this time for some reason we didn't.
My brother and I were in the back seat with stuff to keep us busy. He was playing a video game when I noticed him start to pinch himself to hold it. We had just stopped not that long ago and he claimed he didn't have to go then.
I nudged him and asked if he had to pee and he said he didn't and to stop bothering him. A few minutes passed and he was holding himself again harder. I knew from the past that he wasn't going to last much longer and I was right. He peed his shorts and went back to his game.
When we stopped for lunch and Mom saw his wet shorts she asked him what happened and he just told her it was a accident.