When I was younger, I tried on my big sister's underskirt and panties. She was staying at a friend's house overnight; I went into her bedroom, opened her underwear drawer, and took out a pair of white cotton panties and a full white nylon underskirt. Her underwear felt soft; I played with it. When I was a little older, I wore her pantyhose, underskirt, and light blue panties. I started to pleasure myself in her underwear; it felt great. She gave me a slap when she found out. She made me wear white knickers and a shirt dress for the next two weeks, while calling me a girl’s name.