The new inmate

Description: A new girl has arrived in our studios and we have put her to work right away cleaning the communal bathroom... with her toothbrush. Unfortunately the mistress in charge is not very happy with her work, especially not with the speed the work is done with. So she had a large brush fitted to a mouth gag and indeed, this living scrubbing machine crawling all over the floor is a lot more effective. But when the girl is told to piss all over the newly cleaned floor, we are met with unexpected resistance...