Can the challenge is pretty straight forward. The story you are to make is about a guy, who gets shrunken by a woman or group women, gets sent to dimenson of giantesses, or what ever. The woman/women decide to use the tiny guy as a way to entertain herself/themsleves when she/they have to piss or/and take a dump. The story can be just one chapter or can even be never story ending. The story's main character most be the tiny guy.