This is a design I've had in mind for a while. I do think she'll be a new character, and I'm just about settled in on the name but you'll know about that in a few days.

Just a country girl living in the backest-woods of America from any time between the 50's to 70's living the simple life. School and church, no air conditioning or refrigerators. You know, the good life! From the front you'll make out her overalls and shining golden mane and tail, and from the back you'll also recognize the seat of her pants that often look like a bag of russet potatoes.

The idea is she's got a certain something going on belly-wise and the few doctors around aren't really up to diagnosing much more than a cold. So to be quite honest she just kinda goes about her business in all associated senses, since 1/3 times she can't help herself. Since she's so nice and sweet her mom figures it's barely a problem compared to some of the other brats in town, and she's got friends who look past it since she's a good companion.

If bulky overalls are nearly her only detriment, good-natured people would just declare it a negligible negative.