My cousin pantsed me

I was walking through the woods with my cousin who I was looking after and one of his friends. It was a sunny day so we were all wearing shorts a tee shirt. After a while my cousin's friend said to my cousin he could see his underwear. I said if your underwear is showing then you should get pantsed so I went up to him and yanked his shorts down leaving him in his underwear. I laughed and so did the other kid. We kept walking and I heard my cousin sniggering to his friend behind me. It turns out that my shorts had slid and a few inches of my underwear were showing. My cousin grabbed my shorts and pulled them to my ankles. He also grabbed my underwear and they fell as well. Nobody else saw except my cousin and his friend.