I once found a manga with a Poop Desperation scene in it where the girl is in a kimono at some sort of festival looking area. she winds up losing control when she goes to sit down and then loses control as she stands back up
it used to be posted up in a Messing Group on Omorashi.org... but since they removed the Groups, I cant find it..... if someone has the manga please give me a link, name or even an upload if you can. I would deeply appreciate it
Maybe this is the one you're talking about, its from Namiroji.
http://g.e-hentai.org/g/333161/a0d9a2d4b2/