In summer during high school narrating guy is appointed personal trainer to an athletic girl next door. Possibly not entirely volunteering to it at first, he starts to enjoy the position almost immediately and get the girl to run the trails in the forest behind their houses in the nude. One such naked run they run unto their high school female tennis coach, who is surprisingly accepting. The girl likely was on the team already, if not she join now.
The guy is recruited as support to the team as well. In such role he drives the girls tennis team on a tour of away games. Surprisingly many of the opponents are agreeable to either let our girls to play in the nude or do so themselves too, although I doubt any official on the record game was played nude, such nudism generally being recreational aside, but at least one such nude game (a double) had organized unrelated spectators.
This may or not have been just one of multiple plotlines. I may be mistaken and conflate things, but have feeling there might have been a whole lot of other, barely coherent gratuitous sex possibly including incest. The story was likely unfinished and/or disintegrated to the point I abandoned it. Yes, it possibly wasn't very well written.
No, I'm not sure I read it here, rather on the other site however unlikely it may seem given the starting point in time.
