>>10255
Found what I was looking for from searching "princess celestia,horse,solo":
https://twibooru.org/2466083
https://twibooru.org/342963
1426016 977583 406604 919302

>>10193
>tag
If it did exist, something like "chubby", or "overweight but not obese". For my Princess Celestia explanation: this would be "anatomically correct" in reference to the barrel of the pony. "Barrel" is "horse jargon"; it's akin to the trunk of a human. However, the anatomically correct tag mainly refers to genitals, so nope. The tag "horse" kinda means "anatomically correct". Maybe "anatomically correct barrel", but that sounds odd.