[Duchess47]

The mammary glands or whatever they are called, run along the belly to the bag and sometimes you will see them fill or swell.

[HairOfTheDog]

Here's the logo graphic

[squarebarb]

Yes, the mammary glands go all the way to where the girth or cinch would be. My mare once had her mammary glands swell up just because she was in heat.

I thought I had cinched her too tight and caused it to swell. It looked wierd.