There isn't much of a story because I didn't act but she asked me in a joking/not-joking way if I would eat her pussy after a game. I was probably a sophomore in high school. She was obviously extremely athletic for a girl and went to multiple WNBA All-Star Games.
We weren't alone at the time she made the comment and some kids were giggling but it was clear from subsequent interactions that I had a chance if I had any game at all. However she was never forward in private and I had no-and-I-mean-no clue on how to initiate things with a girl at that time, especially when my attraction level was extreme. I have always been told I have a serious poker face (people thinking I was "mean" when I was shy) so it's likely she doesn't know how I felt to this day.
The only make-out kind of activity I had with a girl before that was where that girl initiated 100%.