Not a Human In Equestria story, just a story where some humans happen to be in Equestria and have an appearance in a scene. The story isn't about them though, it's about ponies.

The Harmony-Bearers have taken a trip to Manehatten, all six of them, and this evening convened at a bar for a round of drinks. Under the influence of alcohol, lips loosen and they speak more freely about things they normally wouldn't. They talk about their feelings, about things that might have burdened them and things that they desire

At a nearby table, three ponies, two Equestrian-raised humans and a third from one of the human colonies sit. For a scene, the very later eavesdrop on the six mares nearby and makes some cultural commentary and comparisons to his companions about what he hears.

[Comedy]: My priority, first and foremost.
[Slice-Of-Life]: They just sit there and talk.
[Romance]: Two of my favorite ships are in here. The first one is Unrequited. The other one, I'll leave you to find.
[Sex]: Ponies are mammals and talk about their libidos.
[Alternate Universe]: The inclusion of humans as a native species to this world veers it far away enough from canon to include.

[Prequel not necessary. I just wrote these stories in a similar vein to one another and they come one after the other in my head. I think one reference is made.]

Takes place before season 5