When I was young, I tried on a pair of my big sisterís nickers. They were white and felt soft; I think they were cotton. I took off my trousers and underpants, and then pulled on her knickers and started to play with myself. After an hour, I stopped because I felt strange. I ran to the bathroom. I kept on wearing my sisterís knickers, though. One day, I was wearing them when she caught me. She pulled me over her knee, giving me five hard smacks. She didn't tell mum, but made me wear a dress all weekend with tight panties.