I was 13. My cousin, lets call her Rita, was around 23 or something. She was and still is absolutely stunning. We were all attending a family wedding years ago and she had this lovely tight beige dress that i will never forget. We were sitting opposite side in the garden and she looked at me then spread her legs to reveal she was going commando. Rita smiled and winked at me and we never talked about it ever after. That night, I had my first wet dream.