A professor is conducting a probe on kaviar and he needs someone to be the subject, fortunately for him a sweetheart volunteers to be one! So here she is, squatting on top of a glass table with a camera on the bottom to record every wank and movement of her anus while she defecates! However, the dude gets a little too carried away with the sight of the lady, especially that he has a fetish for poop! What ends up happening is him demanding her to defecate naked! After she has released all the excrement that she can, the man grabs the sheet that holds all of it and then dips one of his finger into the mound for him to serve to the sweetheart! At the thought of it alone she already gags, but unless she wants to leave she must first do what the man wants!