This happened about two years ago when I was fifteen. I was at the city pool in the changing room when I noticed a girl looking at me. She was short and looked about seven-years-old.
She came over to me and asked, 'Do you like me?' I said, 'Yes' then she, who was already naked said, 'Let's go into the stall.' We did and she pulled my panties down and said, 'You have a nice pussy.' She took her hand and started to stroke my pussy. After about two minutes I orgasmed and let out a moan.
Then she said, 'My turn.' She sat on the toilet and spread her legs apart. Her pussy wasn't very developed and she had no pubic hair. I started to finger her. Her pussy was very tight and young. She screamed and said, 'My god that was the best orgasm I've ever had!' We both left and I still don't know who she is.