Looking for a Story [MF]

I’m looking for a story that I believe was posted here sometime within the last year.

The premise was that the storyteller (a guy) and his lesbian friend got naked for each other because she hadn’t seen a guy naked. Standard guy-turning-a-lesbian fantasy, but it seemed more realistic because he just ends up masturbating for her; they don’t end up having sex. The last of the details I remember is that the girl is black and an art student/nude model/something along those creative lines, and that somehow also led to the nudity.

That’s the best I can recall, but it was super hot if anyone can help me out!