Only my younger lesbian sister knows my thong wearing secret. I usually strip all of my clothes on the ground in the bathroom. When I was done bathing, I grabbed all of clothes, but little did I know my thong accidentally slipped on the ground in the hallway. After I was in my room to change, I realized my used thong was missing, and then I quickly ran back to the bathroom. Then, POOF! Out of nowhere, my sister walks through the hallway to go to the restroom and sees a man thong on the floor. She said, "Who's thong is that?" My heart just sank faster than gravity can pull, and I told her they were mine. She then said, "I don't care if you wear thongs." I told her to not tell anyone and she promised to keep it a secret. Fortunately, my sister is very good at keeping secrets.