Panty Poop & Squash

I show off my clean panties under my skirt, pull them down, show my asshole, before pulling them back up. Putting one leg up I begin shitting in them, filling them up nicely. I go over to my see through chair, with your view from underneath, I sit in them and begin squashing my shit inside my panties, sliding and bouncing on my chair. I then get up, pull my panties down and show my dirty ass.