こやぎ! (よつあし) 英訳

Koyagi! (yotsuashi) YOTUASHI

English translation: Little Goat!

This is a short story released in 2013 or earlier.

It was written by Kishibe of the group Kemoners Furest, a six-page story published as as chapter 5/18 (pages 19-24) of their manga tankoubon Yotu Ashi (aka "Yotsunoha Legs") which is all furry stories done in a hentai manga style.

The eponymous feral female goat character became a recurring meme: https://knowyourmeme.com/memes/goat-tan

Not to be confused with
1) https://myanimelist.net/anime/42899/My_Little_Goat an unrelated 2018 movie.
2) the short story " A Goat Bride!?" a chapter in the eleven-chapter 2015 manga "Onigashima no Iinazuke"