A soft goat satyr I've been developing.

He's kind of an early biologist/naturalist. Its the early stages of science in his world so its mostly observation and field work. Meaning a lot of rough camping in the wilderness for most of the year.
In winter, when its too dangerous in the wild, he'll return to a town or city. Used to having to be careful with his rations, the temptation of so much good food is too much for him to resist. And will spend the winter gorging himself.
When he was starting, he could usually lose the extra weight while he was working. But now he's having difficulty losing it all and has a bit of a soft plump belly year round.
Some fellow researchers like to tease him after winter. A chubby little goat would be a tempting treat for some of the creatures they study.
He tries to keep this in mind but sometimes that extra helping is just too good.