pic unrelated
For some reason, I very explicitly remember there being a fanfic I had found years and years ago that was titled "Naruto's a what?" or something along those lines.
It went something like Naruto was at a hot spring just getting undressed to go in and had a towel on, and Kiba and Choji walk in, and Kiba notices Naruto smells different than normal (says something along the lines of "like a girl"), and it leads to him and Choji finding out Naruto was a hermaphrodite, and it leads to Choji fingering Naruto and then Kiba fucking Naruto in the newly discovered vagina hidden behind his balls.
Can't find it for the life of me, and I'm guessing it was probably on
FF.net before the great purgings that happened. (there were quite a number of stories there I had really liked that all got deleted during those dark times)